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Accounts · Lots of talk

Three-fund / target-date

Also called three fund portfolio · 3 fund · target date fund · bogleheads three fund · tdf

Community talk. May contain inaccuracies. Not financial, tax, legal, or investment advice. No return or outcome is promised.

A three-fund portfolio uses broad index funds for U.S. stocks, international stocks and bonds. Its appeal is owning a wide range of investments with few moving parts. People compare it with target-date funds to decide how much ongoing management they want.

AdviceOnly · 2026

01

What each approach involves

Three funds cover three broad markets. An index fund follows a market benchmark rather than choosing a few hoped-for winners. The traditional mix includes U.S. companies, companies outside the U.S., and U.S. investment-grade bonds—debt issued by governments and companies. Three technology funds would not fill those roles.

AdviceOnly · 2026

A target-date fund manages the changing mix. It usually owns several underlying funds. The named year generally represents an intended retirement date. Its glide path is the schedule for shifting toward a more conservative mix: a “to” path settles at the date; a “through” path continues afterward. It need not contain exactly three funds.

SEC · 2025

The account determines the available options. A workplace plan may offer a limited fund menu; an IRA or brokerage can have different choices. A household can arrange the three exposures across accounts rather than repeat all three in each. The investments are separate from the account's tax treatment.

AdviceOnly · 2026

Separate funds need written percentages and upkeep. The practical sequence is to define the goal and time frame, choose a stock/bond balance, split the stock portion between U.S. and international markets, and select broad funds from the available menu. Regular purchases fund the plan; periodic reviews check whether its mix still fits.

Fidelity · 2026

Rebalancing restores the chosen proportions. When holdings drift, new contributions can go toward the smaller slices, or trades can restore the targets. A target-date fund handles its internal allocation.

SEC · undated

Rebalancing uses today’s total, not the original deposit. Illustration only: a $10,000 portfolio targets 50% U.S. stocks, 30% international stocks and 20% bonds. Later values are $6,000, $3,000 and $2,000, totaling $11,000. Restoring those chosen weights means $5,500, $3,300 and $2,200: move $500 from U.S. stocks, $300 to international and $200 to bonds, before costs or taxes. New contributions can also move the mix toward target without the same sales. These weights illustrate the calculation; they are not a recommended allocation.

Illustration · context: Investor.gov · SEC
Restore the weights on today’s $11,000

The example’s chosen targets are 50% U.S. stocks, 30% international stocks and 20% bonds. After values change, the portfolio totals $11,000.

Rebalance the same current total
HoldingCurrent → targetChange
U.S. stocks$6,000 → $5,500−$500
International stocks$3,000 → $3,300+$300
Bonds$2,000 → $2,200+$200
  • U.S. stocks
  • International stocks
  • Bonds
Current: $6,000 / $3,000 / $2,000
Target: $5,500 / $3,300 / $2,200

$500 leaves one holding; $300 and $200 go to the others. The total stays $11,000 before costs or taxes.

These weights are fictional teaching inputs, not a recommended allocation. New contributions can also move the mix toward its target without the same sales.

Costs include the fund and account charges. The expense ratio is an annual percentage deducted for fund operating costs. A target-date prospectus reports costs including its underlying funds; account and transaction charges also deserve a look. Separate funds are not automatically cheaper than every packaged option.

SEC · 2025

02

Why people use these approaches

Broad exposure reduces dependence on individual winners. Whole-market funds spread holdings across many companies and bonds. The simple structure is also easier to explain to a partner who may later manage the accounts.

AdviceOnly · 2026

One fund reduces ongoing allocation decisions. Automatic changes can save time. Separate funds offer control over the weights, but that also means maintaining them.

SEC · 2025

03

Good to know

A retirement year is not a risk guarantee. Same-year target-date funds can have different holdings, paths and fees. Other savings affect the household's total mix. Neither adequate retirement income nor a particular return is guaranteed; adding overlapping funds changes the weights.

SEC · 2025

Selling shares and withdrawing retirement money differ. Mutual funds generally redeem on business days at the next calculated share value; ETFs trade during market hours. Neither access method protects the sale price.

SEC · 2025

Account rules still govern withdrawals. U.S. traditional IRA and qualified-plan withdrawals before 59½ generally face a 10% additional tax unless an exception applies. Selling within the account differs from taking a distribution.

IRS · accessed 29 Sept 2026

Reinvesting does not erase taxable distributions. U.S. taxable accounts can owe tax on reinvested distributions. Sales can realize gains or losses; retirement accounts have separate tax rules.

IRS Publication 550 · 2025

04

From community discussion

Several accounts made simplicity appealing. One couple held investments across a 401(k), Roth IRA, HSA and brokerage and wanted fewer rebalancing decisions. Their approximately 3% versus 10% return comparison drew a reply questioning whether the periods matched. Those figures were disputed claims, not verified performance.

Community · Reddit

A limited plan menu added work. One commenter used a target-date fund in a 401(k) because separate options required combining large, mid and small U.S. companies plus developed and emerging international markets. They preferred individual funds in an IRA. Another investor wanted automation because rebalancing felt uncomfortable.

Community · Reddit

A lower fee did not settle the maintenance debate. A poster felt proud after switching from a target-date fund, reporting expenses of 0.0375% versus 0.0139% and reducing bonds from 10% to 5%. Replies challenged the extra complexity and small savings. The switch changed risk as well as fees; the figures describe that plan.

Community · Reddit

Allocation arguments include 60/40 and international weights. A retiree's 60% stocks/40% bonds sketch drew more defensive and more stock-heavy replies; another said there was no single correct answer. Other reports debate 20%, 30% or 40% international within the stock portion and quote “100 minus age” for stocks. These are examples people discuss, not required allocations.

Community

A short written plan limits tinkering. Reports describe a five-sentence investment policy, automatic purchases and a roughly 20-minute yearly review, or rebalancing after about five percentage points of drift. A market fall tempted panic selling; a strong year tempted changes. Some hid the investing app to interrupt that habit.

Community

Boredom and control felt different. Some found a first target-date fund underwhelming and later appreciated the low effort. Others enjoyed understanding each separate holding but noticed more tinkering. Comparing with a relative's speculative winner or a “beats everything” video pulled attention away from the original purpose.

Community

A speculative slice stayed separate from reserves. Reports capped optional “play money” at 0–5% and kept emergency cash available so a tire or bill would not force a fund sale. Money intended for near-term medical costs was treated differently from long-term HSA investments. Near retirement, withdrawals needed their own plan.

Community

References for this topic

Sources and context

  1. Target date fund vs 3 fund portfolio ↗

    id
    money-community-portfolio-simplicity — Target date fund vs 3 fund portfolio
    platform
    Reddit · r/Bogleheads
    role
    Community discussion
    accessed On
    2026-09-07
    locator
    Opening post by ancientbook123.
    scope
    Multiple-account complexity, rebalancing uncertainty and a recent-return comparison in one household’s question.
    limitations
    Selected public post and visible replies only; self-selected, unverified personal reports, not a representative sample or evidence of typical outcomes. No account records or private/deleted replies accessed. No holdings or performance independently verified; named tickers, predicted returns and allocation advice omitted.

  2. Target Date Funds – Investor Bulletin ↗

    id
    money-official-target-date — Target Date Funds – Investor Bulletin
    platform
    Investor.gov · U.S. Securities and Exchange Commission
    role
    Official context
    accessed On
    2026-09-07
    locator
    Description of changes to the investment mix over time.
    scope
    Supports the target-date half of three-fund definition.
    limitations
    Primary search text reviewed; no exact asset allocation, fund recommendation or promised result.
    slugs
    • three-fund

  3. Topic No. 409, Capital gains and losses ↗

    id
    money-guide-tlh-topic-409 — Topic No. 409, Capital gains and losses
    platform
    IRS
    role
    Official context
    accessed On
    2026-09-24
    locator
    Short-term or long-term, and Limit on the deduction and carryover of losses
    scope
    Holding more than one year is long-term, counted from the day after acquisition through the sale date. Excess capital losses are deductible up to the lesser of $3,000 ($1,500 if married filing separately) or the Schedule D net loss, with the rest carried forward. Sales are reported on Form 8949 and Schedule D.
    limitations
    The page dates its long-term rate brackets to taxable years beginning in 2025. It does not print a tax year on the $3,000 sentence, and it does not explain wash sales.
    slugs
    • tax-loss-harvesting
    • taxable-brokerage
    • three-fund

  4. Three-Fund Portfolio: The Three Funds, and What It Deliberately Omits ↗

    id
    money59-three-fund-definition — Three-Fund Portfolio: The Three Funds, and What It Deliberately Omits
    platform
    AdviceOnly
    role
    Professional context
    accessed On
    2026-09-29
    locator
    Definition, Quick Summary, How It Works, Pros and Cons; reviewed by Steven Fox, CFP, EA.
    scope
    Three total-market exposures, allocation remains a decision, household account assembly, simplicity and partner handoff.
    limitations
    Professional glossary on an advice business site; no performance evidence. Target-date comparison in the overview is additionally supported by the SEC bulletin. No provider endorsement or buy list.
    slugs
    • three-fund
    published Or Updated
    2026-08-07

  5. Target Date Funds – Investor Bulletin ↗

    id
    money59-three-fund-target-date — Target Date Funds – Investor Bulletin
    platform
    Investor.gov · SEC
    role
    Official context
    accessed On
    2026-09-29
    locator
    What are target date funds?; glide paths; risks; before investing.
    scope
    Target-date definition, automatic shifts, to/through paths, fee table including underlying funds, same-year differences, overall allocation and no guaranteed income.
    limitations
    Staff education, not a binding rule. Covers registered mutual funds and ETFs, not collective investment trusts. Does not set a recommended allocation or validate all target-date providers.
    slugs
    • three-fund
    published Or Updated
    2025-03-25

  6. 3 keys: The foundations of investing ↗

    id
    money59-three-fund-process — 3 keys: The foundations of investing
    platform
    Fidelity Viewpoints
    role
    Professional context
    accessed On
    2026-09-29
    locator
    Keys 1–3; Research, Select, Monitor, Rebalance, Manage taxes.
    scope
    Goal/time-frame/risk decisions and ongoing self-management sequence.
    limitations
    Provider education includes sales promotion for managed accounts. No personal risk percentage, investment recommendation, historical performance or simulated certainty carried forward.
    slugs
    • three-fund
    published Or Updated
    2026-02-27

  7. Asset Allocation and Diversification ↗

    id
    money59-three-fund-allocation — Asset Allocation and Diversification
    platform
    Investor.gov · SEC
    role
    Official context
    accessed On
    2026-09-29
    locator
    Rebalancing paragraph and diversification section.
    scope
    Drift changes mix; purchases or trades restore targets; target-date adviser handles internal allocation.
    limitations
    Undated educational page; no five-percentage-point legal rule. Only a short article row draws on this potentially shared page.
    slugs
    • three-fund

  8. Characteristics of Mutual Funds and Exchange-Traded Funds (ETFs) – Investor Bulletin ↗

    id
    money59-three-fund-liquidity — Characteristics of Mutual Funds and Exchange-Traded Funds (ETFs) – Investor Bulletin
    platform
    Investor.gov · SEC
    role
    Official context
    accessed On
    2026-09-29
    locator
    Liquidity; How they are priced; Fees; Taxes.
    scope
    Mutual fund next-calculated NAV redemption and ETF market-hours trading; market value may change; fees and taxation.
    limitations
    Applies to registered mutual funds and ETFs, not all workplace collective trusts. Sale execution is distinct from cash settlement, bank transfer and retirement distribution permission; no instant cash promise.
    slugs
    • three-fund
    published Or Updated
    2025-04-29

  9. Retirement topics - Exceptions to tax on early distributions ↗

    id
    money59-three-fund-withdrawals — Retirement topics - Exceptions to tax on early distributions
    platform
    IRS
    role
    Official context
    accessed On
    2026-09-29
    locator
    Opening and footnotes; exceptions table.
    scope
    General U.S. federal early traditional IRA/qualified-plan distribution 10% additional tax before 59½; exceptions vary.
    limitations
    Current page inspected, publication/update date not verified. Not all retirement accounts share the rule: governmental 457(b) exclusions and SIMPLE IRA two-year 25% rule exist. No specific withdrawal eligibility claimed; no 2027 figure.
    slugs
    • three-fund

  10. Publication 550 (2025), Investment Income and Expenses ↗

    id
    money59-three-fund-tax — Publication 550 (2025), Investment Income and Expenses
    platform
    IRS
    role
    Official context
    accessed On
    2026-09-29
    locator
    Investment income; qualified retirement plans and IRAs; Dividends Used To Buy More Stock; mutual fund basis/holding-period sections.
    scope
    Taxable reinvested distributions and sales gain/loss, distinct retirement-account rules.
    limitations
    Publication edition is tax year 2025; no claim of a 2026 publication or 2026/2027 bracket. U.S. federal context, not state tax advice. Short general condition only.
    slugs
    • three-fund

  11. Target date fund vs 3 fund portfolio ↗

    id
    money59-three-fund-multiple-accounts — Target date fund vs 3 fund portfolio
    platform
    Reddit · r/Bogleheads
    role
    Community discussion
    accessed On
    2026-09-29
    locator
    ancientbook123 opening; Majestic-Macaron6019, ziggy029 and Leonnn141 replies.
    scope
    Couple across 401(k), Roth IRA, HSA, brokerage wants fewer decisions; approx 3%/10% return comparison disputed by a reply.
    limitations
    First-person account unverified. Return numbers not treated as facts; reply claimed approximately 3.81%/3.80% but not independently verified. Original absolute publication date not verified from body; relative time not converted.
    slugs
    • three-fund

  12. Is switching to Target Date fund from 3 fund portfolio neglecting Bogle’s investment strategy? ↗

    id
    money59-three-fund-menu — Is switching to Target Date fund from 3 fund portfolio neglecting Bogle’s investment strategy?
    platform
    Reddit · r/Bogleheads
    role
    Community discussion
    accessed On
    2026-09-29
    locator
    prosper1984 opening; hachkc reply; rossiskier13346 reply; Rounders_in_knickers and Didymus21 disagreement.
    scope
    Discomfort with self-rebalancing; menu split across U.S. capitalization/international regions; differing account choices and convenience tradeoff.
    limitations
    Narrow sample, unverified plan menu. Allocations, later-year selection advice, claims of guaranteed superiority and provider rankings omitted. Date not converted from relative display.
    slugs
    • three-fund

  13. I ditched the Target Date Fund in my 401k. ↗

    id
    money59-three-fund-switch — I ditched the Target Date Fund in my 401k.
    platform
    Reddit · r/Bogleheads
    role
    Community discussion
    accessed On
    2026-09-29
    locator
    Opening allocation table; replies challenging added complexity and trivial fee difference.
    scope
    Reported expenses 0.0375% to 0.0139%; bonds 10% to 5%; pride/control versus extra work and risk change.
    limitations
    Original body opened twice with differing number of visible replies. Absolute date not verified from body; no month is asserted. Fees are self-reported plan-specific, not live provider offers or expected returns.
    slugs
    • three-fund

  14. Publication 969 (2025), Health Savings Accounts and Other Tax-Favored Health Plans ↗

    id
    money-wave-hsa-account — Publication 969 (2025), Health Savings Accounts and Other Tax-Favored Health Plans
    role
    Official context
    accessed On
    2026-09-23
    locator
    Contributions to an HSA; 2026 limit tip; distributions and qualified medical expenses.
    scope
    Contribution eligibility differs from owning or spending an existing HSA; qualified medical spending is an intended account use; 2026 limits are $4,400/$8,750 with eligibility qualifications.
    limitations
    Primary context for the named narrow claim; does not determine an individual account, eligibility or outcome.

Keep this topic in view

Preserved original record

Earlier public profile and reader notes are preserved separately from the current article. They may contain superseded wording and are not newly checked material.

Read the full original profile
slug
three-fund
name
Three-fund / target-date
aliases
  • three fund portfolio
  • 3 fund
  • target date fund
  • bogleheads three fund
  • tdf
family
accounts
heat
high
talk
Lots of talk
most Discussed
true
first Line
A three-fund portfolio combines broad U.S. stocks, international stocks and bonds, while a target-date fund packages an investment mix designed to change over time.
why Line
The recurring choice is how much portfolio maintenance someone wants: holding the major market exposures themselves or paying for a fund that handles allocation and rebalancing.
feel Words
  • three-fund
  • target date
  • Bogleheads
  • index
  • glide path
common Picture
  • lead
    Allocation describes the stock/bond balance
    why
    That is separate from the international share within the stock portion. [community]
  • lead
    Rebalancing restores a chosen mix
    why
    Yearly reviews or roughly five-percentage-point drift are examples from the reports. [community]
  • lead
    Fund costs and holdings still need a look
    why
    A small number of funds does not by itself reveal fees, overlap or the chosen risk mix. [community]
watch For
A short fund list does not remove market risk. Adding overlapping funds or narrow bets can change the intended mix; named examples are illustrations, not a recommended buy list.
what People Say
  • The job: Own a boring slice of markets without a hobby. [community]
  • bogleheads.org Three-fund portfolio is the text. [community]
  • 2026 r/Bogleheads: “is 3-fund still fine?” Yes, in the comments, with the usual 40 replies. [community]
  • Target-date fund versus managing separate funds: one packaged fund handles its own mix and rebalancing. Holding separate funds gives the owner more allocation and account-placement work, which some value and others find tempting to overmanage. [community]
  • Jack Bogle “majesty of simplicity.” The quote does a lot of work. [community]
  • International % is the eternal nerd fight (20 vs 30 vs 40 of equities). Beginners pick one and live. [community]
  • VTSAX-only identity is a US-home-bias personality. Rooms allow it and also tease it. [community]
  • Factor tilts, sector bets, “the 2026 3-ETF that beats everything” YouTube are the watch-for. [community]
  • A target-date year is not magic — they still pick a risk level, not only a birthday. [community]
  • Broad-market investing and speculation differ: a simple portfolio aims to hold chosen market exposures, rather than depend on a short-term trading idea. [community]
  • Not investment advice. Examples are the picture people draw. [community]
how People Run It
  • When the workplace plan offers a suitable target-date fund: some use the single fund for their intended allocation and keep contributions regular, after checking its holdings and fees. [community]
  • If they manage the mix themselves: they select funds for the U.S. stock, international stock and bond roles from the options available in the account. [community]
  • They pick a stock/bond mix they can hold in a crash. [community]
  • They automate. [community]
  • They rebalance rarely (calendar or bands), not weekly. [community]
  • They do not add a fourth “play” fund the first year. If they do, they cap it so it cannot hurt them. [community]
  • They ignore 11-minute “beats everything” videos. [community]
amounts People Use
  • Stock/bond rules of thumb: 100 minus age as a stock percentage is one quoted example. A target-date fund instead follows a planned allocation path that changes over time; neither label alone establishes the right mix for a particular person. [community]
  • International talk: 20–40% of the stock side in a lot of Bogle writeups. [community]
  • Example tickers people type: VTI / VXUS / BND (or mutual-fund twins). Examples, not a buy list. [community]
  • Rebalance: yearly or when a slice is off by 5%+ — common talk. [community]
  • Play money: 0–5% if they must scratch the itch. Not the emergency fund. [community]
how People Keep It
  • An investment policy statement can be short: record the purpose, intended mix, rebalancing approach and reasons to change the plan before a market drop tests it. [community]
  • Automatic buys. [community]
  • They hide the app in a drawdown if they are a panic-seller. [community]
  • They keep the emergency fund in cash so they do not sell the three-fund for a tire. [community]
  • A yearly 20-minute review, not a hobby. [community]
how It Feels
  • A first target-date fund can feel underwhelming: the appeal for some people is fewer allocation and rebalancing decisions. [community]
  • A crash: they want to “do something.” The plan was to do nothing. [community]
  • A bull year: they want to be geniuser. Same temptation. [community]
  • Managing three funds can bring confidence: knowing each holding’s role may feel satisfying, while repeated tinkering can add work the simple mix was meant to reduce. [community]
  • Comparing to a cousin’s meme stock: unhelpful. [community]
  • Decade later: they are glad they were bored. [community]
how Long People Run It
  • Decades. That is the product. [community]
  • Review the intended risk path: a target-date fund’s year is a label for its planned allocation approach, so changes in circumstances may prompt a review of the actual holdings and plan. [community]
  • Near retirement: the investment mix and the amount to withdraw need to be considered together. A simple fund count does not settle the income plan. [community]
  • It is not a 2026 trade. [community]
deep Dive
  • Tax treatment and portfolio mix are separate: Roth and Traditional describe account tax rules; three-fund describes investments held in the account. The same broad exposures can sometimes be used under either treatment. [community]
  • In a taxable brokerage: the same broad investment roles can be filled, but dividends, sales and the purchase lots selected for sale also affect tax records. [community]
  • Inside an HSA: some people invest money intended for later use if the account offers appropriate funds. Money needed for near-term medical care has a different access and risk requirement. [community]
  • Savings and I-bonds are different from stocks: they may serve reserve or spending goals, with different access terms. They do not provide the same equity-market exposure as the stock portions of a three-fund portfolio. [community]
  • Not advice. Past ≠ future. Funds named are illustrations of jobs. [community]
watch For Long
  • Added complexity changes the plan: a narrow sector bet or a tilt toward selected investment characteristics may overlap existing holdings and add a different risk. A fourth fund is not automatically more diversified. [community]
  • Examples are not endorsements. [community]
  • A YouTube “beats everything 2026” portfolio is content. [community]
  • Do not put the emergency fund here. [community]
  • Separate speculative positions from the stated portfolio purpose: a concentrated bet or options strategy is not implied by choosing broad stock and bond exposure. [community]
related
  • the-match
  • roth-vs-traditional
  • taxable-brokerage
  • hsa-account
  • full-emergency-fund
research Pointer
    house Pointers
      play Pointer
      —
      sources
      • bogleheads.org Three-fund portfolio
      • r/Bogleheads 2026 TDF vs DIY
      • target-date fund wiki talk
      disclaimer
      Community talk may be wrong. Not financial, tax, legal, or investment advice. No return or outcome is promised.
      quick Answer History
      • field
        commonPicture
        rows
        • lead
          Auto rebalance or the TDF does it
          why
          DIY people calendar a year. [community]
      • field
        communityPicture
        rows
        • People discuss managing the mix themselves versus using one fund, rebalancing, fees and keeping choices understandable across several accounts.
      • field
        firstLine
        rows
        • A three-fund is US stock + international + bonds. A target-date fund is the same idea in one box that they will not tinker with.
      • field
        whyLine
        rows
        • A three-fund is US stock + international + bonds. A target-date fund is the same idea in one box that they will not tinker with.
      • field
        commonPicture
        rows
        • lead
          US stock + international + bonds
          why
          The three jobs. VTI / VXUS / BND or a VTSAX-stack are examples people draw, not endorsements. [community]
        • lead
          Or one target-date fund
          why
          The “I will not tinker” 401k answer. [community]
        • lead
          A stock/bond mix they can sleep with
          why
          Age-in-bonds / 100−age is a conservative slogan, not a prescription. [community]
        • lead
          Rebalance: yearly or when a share drifts by about 5 percentage points
          why
          A target-date fund handles its own allocation changes; self-built portfolios need a chosen approach. [community]
        • lead
          Keep funding
          why
          The allocation is not the hard part. The transfers are. [community]
        • lead
          International-stock share in reports: 20–40% of the stock portion
          why
          This is separate from the overall stock-versus-bond split. [community]
      • field
        watchFor
        rows
        • Ticker shopping. Factor-tilting a beginner. VTSAX-only as identity. This page naming a buy list as advice.
      • field
        whatPeopleSay
        rows
        • TDF vs DIY: TDF wins if they will tinker. DIY wins if they want tax-location later and will not tinker anyway. [community]
        • This is not WSB. $STUD is Token. [community]
      • field
        howPeopleRunIt
        rows
        • In a 401k with a decent TDF: they pick one and raise the contribution. Done. [community]
        • If they DIY: three funds that match the three jobs, in whatever brand the account offers. [community]
      • field
        howPeopleKeepIt
        rows
        • One page IPS (even five sentences) so a crash does not become a new personality. [community]
      • field
        howLongPeopleRunIt
        rows
        • The TDF year can change if their risk does. [community]
        • Near retirement the mix and withdrawal math get their own room. [community]
      • field
        deepDive
        rows
        • Roth vs Traditional is the wrapper. This is the filling. [community]
        • Taxable brokerage can hold the same three jobs with tax-lot awareness. [community]
        • HSA can be invested the same way. [community]
        • I-bonds / HYSA are cash jobs, not the equity sleeve. [community]
      • field
        watchForLong
        rows
        • Ticker shop and factor-tilt are how beginners leave the plan. [community]
        • $STUD / options / WSB are other maps. [community]
      • field
        amountsPeopleUse
        rows
        • Equity/bond slogans: 100−age in stocks (conservative), or TDF glide path (often more stock). [community]
      • field
        howItFeels
        rows
        • First TDF: underwhelming. That is the feature. [community]
        • DIY three-fund: mildly proud they know the names. Danger of tinkering. [community]
      Read the preserved reader notes
      definition
      A three-fund portfolio combines broad U.S. stocks, international stocks and bonds, while a target-date fund packages an investment mix designed to change over time.
      community Picture
      The recurring choice is how much portfolio maintenance someone wants: holding the major market exposures themselves or paying for a fund that handles allocation and rebalancing.
      additions
      • text
        A selected r/Bogleheads poster already had several retirement and investment accounts containing a mixture of funds and wondered whether target-date funds would reduce the work of rebalancing. They also compared a proposed fund with a recent return from a U.S.-stock holding. The account shows two questions getting tangled: wanting fewer ongoing decisions and expecting the same short-term result from a different mix.
        sources
      summary Sources
      guide
      what
      • A target-date fund, in the SEC investor bulletin of March 25, 2025, holds a mix of stocks, bonds, and other funds and changes that mix over time. The year in the name is the target, often a retirement year. The fund's adviser shifts the mix, usually from more stocks toward more bonds, along a glide path that runs to the date or through it. The fund does not guarantee retirement income. Two funds with the same year can still differ in strategy, path, and fees. Some workplace versions are collective investment trusts, which that bulletin does not cover.
      • A three-fund mix is the same broad roles held as separate funds: a broad U.S. stock fund, a broad international stock fund, and a bond fund, in weights the owner writes down. It is not an SEC product and not a target-date fund. The owner does the rebalancing the target-date adviser would have done. Tickers named in the community notes are illustrations, not a buy list from the bulletin.
      • Neither structure removes the chance of loss. The bulletin says a heavier stock mix generally means a higher risk of loss, and that the chance of a higher return comes with that risk. Adding a narrow fund changes the mix. It is not automatic extra diversification.
      how
      • Pick the account first, because the menu is whatever that plan or broker offers. If the choice is one target-date fund, read the prospectus and the latest shareholder report. The bulletin says to check the glide path, whether it runs to the year or through it, the stock percentage along the way, and the fee table. The fee table includes the cost of the funds inside the target-date fund. A fund picked only because the year matches a birthday can still be too aggressive or too conservative for the other savings already owned.
      • If the mix is three separate funds, choose one fund for U.S. stocks, one for international stocks, and one for bonds from the options actually available. Write the percentages. The SEC bulletin does not set those percentages. Rules of thumb and international shares of the stock side live in the community notes, not on that page. Each prospectus shows the holdings and the cost.
      • Automate the contribution into the written mix. The target-date fund shifts itself. Separate funds need a trade when the percentages have drifted from the page that was written down. A yearly look, or a look when one slice is far from its target, is the pace the community notes describe. The bulletin's point is that the shift is a plan, not a reaction to a short video.
      • A normal year is contributions going in and, at most, one rebalance. Read the shareholder report. Leave a fourth narrow fund out of the first pass. Count other accounts: the bulletin says to look at the whole mix, including other retirement money. The prospectus, the fee table, and the account statement still have to match the roles that were written down.
      understand
      • The target-date structure exists so one fund can move from stocks toward bonds as the date gets closer, without the owner placing each trade. The three-fund structure exists so each role and its fee stay visible. The bulletin says even small fee differences compound, and that a fund of funds can charge at both layers. Neither fund guarantees income at the target date.
      • The miss is buying a target-date fund and also buying the same stock and bond markets beside it, which doubles the mix, or ignoring a glide path that keeps a large stock share after the named year. Another miss is treating a community percentage, including age formulas and a 5 percent drift band, as an SEC rule. The bulletin does not state those numbers.
      • The wrong tool is money that has to be spent soon. A long stock-and-bond mix is not a cash reserve. In a taxable brokerage account, dividends and sales are capital-gain items under IRS Topic No. 409, separate from which fund was chosen. For taxable years beginning in 2025, that page separates long-term and short-term treatment. The prospectus and the written percentages remain the records. The community notes are where the percentage arguments are.
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