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John's 3-Timeline Index Fund Retirement Framework

Last updated: 26 August 2026

Calculate the exact daily contribution needed to reach $1 million in retirement using a tiered Fidelity index fund portfolio matched to your available time horizon, starting from $0.

// TL;DR

John's 3-Timeline Index Fund Retirement Framework calculates the exact daily contribution needed to reach $1 million in retirement using a tiered Fidelity index fund portfolio matched to your available time horizon, starting from $0. It offers three tiers — 30-year ($6/day), 20-year ($22/day), and 10-year ($120/day) — each using the same three funds (FXAIX, FNCMX, FELX) with different allocation weights. Use it whenever you want a concrete, fund-specific retirement plan built from scratch and need to understand how your chosen timeline changes both portfolio construction and required daily investment. It reveals the real cost of compressing or extending your retirement runway.

Framework

// When should you use John's 3-Timeline Index Fund Retirement Framework?

Use this skill whenever a user wants to build a concrete, fund-specific retirement plan from scratch and needs to know how their chosen timeline (10, 20, or 30 years) changes both the portfolio construction and the required daily investment. Also use it when a user wants to understand the real cost of compressing or extending their retirement runway.

// What information do you need before building your retirement plan?

Target retirement timelinerequired
How many years the user is willing to invest before retiring — anchors which portfolio tier applies (10, 20, or 30 years, or interpolate for other ranges).
Current investable savingsrequired
How much the user is starting with. The framework is built for $0 start; adjustments needed if non-zero.
Household incomerequired
Gross annual household income, used to sanity-check whether the required daily contribution is realistic for the chosen timeline.
Retirement income goal
Target portfolio size or annual withdrawal need. The framework defaults to the $1 Million Finish Line; user can specify a different target.
Risk tolerance
User's comfort with sector concentration and volatility — determines whether the aggressive tiers are suitable.

// What core principles drive this retirement framework?

The $1 Million Finish Line

The universal retirement destination is $1 million invested in an index fund portfolio. At this level, the 4% Rule allows a $40,000 first-year withdrawal ($3,333/month) without draining the account, because the market typically grows faster than the 4% withdrawal rate, keeping the principal intact or growing.

The 4% Rule

In year one of retirement, withdraw 4% of the total portfolio ($40,000 on $1 million). Each subsequent year, adjust the withdrawal slightly upward for inflation. The portfolio continues growing in the background, so the principle usually stays intact and in many cases the account keeps getting bigger while you spend from it.

Compounding's Runway

Time is the cheapest source of retirement money. The longer you give compounding to do its job, the less of your own paycheck has to fund the destination. The shorter the runway, the more you must make up out of pocket — you are literally buying back time with your own contributions.

The Market-to-You Ratio

For every dollar you contribute personally, the market returns a different multiple depending on your timeline: roughly $14 per dollar over 30 years, $5.50 per dollar over 20 years, and only $1.50 per dollar over 10 years. This ratio is the single most important variable in choosing your timeline.

Aggression Scales Inversely With Time

As the timeline shrinks, the portfolio must shift weight away from broad-market funds and toward higher-appreciation, higher-volatility funds to compensate for lost compounding runway. Portfolio risk is not a preference — it is a mathematical requirement of the chosen timeline.

The Three-Fund Engine

All three portfolios use the same three Fidelity funds — FXAIX (foundation), FNCMX (growth bridge), and FELX (the wild card engine) — varying only the allocation weights. The funds stay constant; the weights do the work of tuning risk and expected return to the timeline.

// How do you build your retirement plan step by step?

1
Establish the $1 Million Finish Line (or user's custom target) and anchor it to the 4% Rule
Confirm the user's retirement income expectation. At $1M: $40,000/year ($3,333/month) from the portfolio via the 4% Rule. Add average Social Security (~$2,760/month) to show total retirement income picture (~$5,400+/month). If the user's income goal differs, scale the portfolio target proportionally before proceeding.
2
Lock in the user's timeline and assign them to a portfolio tier
Three tiers: 30-Year Portfolio (low aggression), 20-Year Portfolio (moderate aggression), 10-Year Portfolio (high aggression). If the user's timeline falls between tiers, use the closer tier and flag that their daily number will sit between the two tier benchmarks. Do not skip this step — the entire portfolio construction flows from the timeline choice.
3
Apply the fund allocation weights for the assigned tier
30-Year: FXAIX 60% / FNCMX 30% / FELX 10%. Blended appreciation ~15%, dividend yield ~0.81%, dividend growth ~6.18%. | 20-Year: FXAIX 35% / FNCMX 40% / FELX 25%. Blended appreciation ~16.81%, dividend yield ~0.58%, dividend growth ~5.16%. | 10-Year: FXAIX 15% / FNCMX 35% / FELX 50%. Blended appreciation ~18.88%, dividend yield ~0.34%, dividend growth ~3.44%. As the timeline shrinks, FXAIX shrinks, FNCMX and especially FELX expand.
4
State the required daily contribution for the chosen tier
30-Year: $6/day (~$2,190/year). 20-Year: $22/day (~$8,030/year / ~$660/month). 10-Year: $120/day (~$43,800/year / ~$3,650/month). For non-standard timelines or targets, scale linearly as a first approximation and flag that a compound-growth calculator should be used for precision.
5
Run the income reality check
For the 10-Year Portfolio, the user realistically needs a household income of ~$120,000/year or above, because $3,650/month into investments is not viable below that threshold after living expenses. If the user's income does not support the required daily contribution, redirect them to the 20-Year or 30-Year tier. Frame this explicitly: choosing a longer timeline is not a downgrade — it is what the math allows.
6
Project the year-by-year balance trajectory for the assigned tier
Use the blended appreciation rate for the tier to model growth. Key milestones to surface: End of Year 1 (mostly contributions, minimal market effect), Year 5 (market begins adding meaningfully), Year 10/20/30 (finish line). For 30-Year: Y1 ~$2,190 → Y10 ~$45,641 → Y20 ~$234,158 → Y30 ~$1,004,150. For 20-Year: Y1 ~$8,030 → Y10 ~$180,684 → Y20 ~$1,040,920. For 10-Year: Y1 ~$43,800 → Y5 ~$320,168 → Y10 ~$1,083,663.
7
Calculate the personal contribution vs. market contribution split
Total contributions: 30-Year = ~$65,700 personal / ~$938,450 from market. 20-Year = ~$160,600 personal / ~$880,320 from market. 10-Year = ~$438,000 personal / ~$645,663 from market. Express this as the Market-to-You Ratio and make explicit what the user is trading when they choose a shorter timeline: they are substituting their own dollars for compounding time.
8
Present the side-by-side comparison and let the user choose their timeline consciously
Show all three tiers simultaneously — same $1 Million Finish Line, different personal contribution totals, different daily numbers, different Market-to-You Ratios. The goal is an informed choice, not a prescription. Ask: which plan matches what the user can actually live with for as long as it takes? Sustainability of the daily contribution matters as much as the math.
9
Flag the FELX concentration risk explicitly for 10-Year users
FELX (semiconductors) is a single-sector fund. Semiconductors are cyclical — when they crash, they crash hard. A 50% allocation to FELX is a concentrated bet on growth. This must be disclosed before the user commits to the 10-Year Portfolio. The 10-Year plan is the most aggressive version and is not for everyone.

// What do real timeline scenarios look like in practice?

A 35-year-old professional with $0 saved, a $95,000 household income, and 30 years until target retirement at 65.

Assign the 30-Year Portfolio (FXAIX 60% / FNCMX 30% / FELX 10%). Required contribution: $6/day ($2,190/year). Blended appreciation ~15%. By 65, projected balance ~$1,004,150. Personal contribution: ~$65,700. Market contribution: ~$938,450. Market-to-You Ratio: ~$14 per dollar. Income reality check passes easily at $95K. The market does 93% of the work — the user just needs to show up consistently for 30 years.

A 40-year-old with $0 saved, a $75,000 household income, and a goal to retire at 60 — a 20-year runway.

Assign the 20-Year Portfolio (FXAIX 35% / FNCMX 40% / FELX 25%). Required contribution: $22/day (~$660/month / $8,030/year). Blended appreciation ~16.81%. Projected finish: ~$1,040,920 at year 20. Personal contribution: ~$160,600. Market contribution: ~$880,320. Market-to-You Ratio: ~$5.50 per dollar. Income reality check: $660/month on $75K gross (~$6,250/month gross) is tight but achievable with discipline. Explicitly note the user is paying ~$95,000 more than the 30-year version to buy back 10 years of time.

A 30-year-old entrepreneur with $0 saved, a $150,000 household income, and an aggressive goal to retire at 40 — a 10-year runway.

Assign the 10-Year Portfolio (FXAIX 15% / FNCMX 35% / FELX 50%). Required contribution: $120/day ($3,650/month / $43,800/year). Blended appreciation ~18.88%. Projected finish: ~$1,083,663 at year 10. Personal contribution: ~$438,000. Market contribution: ~$645,663. Market-to-You Ratio: ~$1.50 per dollar. Income reality check passes at $150K. Flag FELX concentration risk (50% in semiconductors, a cyclical sector). The user is nearly matching the market dollar-for-dollar — that is the price of a 10-year runway.

// What mistakes should you avoid when using this framework?

Choosing the 10-Year Portfolio without a household income of ~$120,000+ — below that threshold, $3,650/month in contributions is not realistic after living expenses and the plan collapses.
Ignoring FELX concentration risk — putting 50% of a portfolio into a single sector (semiconductors) means when that sector crashes, it crashes hard; this is not suitable for everyone regardless of timeline.
Treating the daily contribution numbers as interchangeable across timelines — the 30-year $6/day will not produce $1 million in 10 years; each daily number is calibrated specifically to its tier's blended appreciation rate.
Underestimating the cost of buying back time — the 10-Year plan costs ~$438,000 in personal contributions vs. ~$65,700 for the 30-year plan; users often underestimate how much extra out-of-pocket spending a compressed timeline requires.
Assuming a longer timeline is a failure — the 30-year plan has the highest Market-to-You Ratio (~$14 per dollar) and requires the least personal capital; choosing it deliberately is mathematically optimal if the user has the time.
Starting with a non-zero balance and not adjusting the daily contribution downward — the framework is built for $0 start; existing savings reduce the required daily number and must be factored in.
Selecting funds or weights without matching them to the timeline — the Three-Fund Engine only works as designed when the allocation weights correspond to the correct tier.

// What key terms do you need to understand?

The $1 Million Finish Line: The universal retirement target portfolio size used throughout this framework. At $1 million, the 4% Rule generates $40,000/year ($3,333/month) in withdrawals without depleting the principal.
The 4% Rule: A research-backed withdrawal strategy: in year one of retirement, withdraw 4% of the total portfolio; adjust slightly for inflation each subsequent year. Works because the market typically grows faster than 4%, keeping the principal intact or growing.
Compounding's Runway: The amount of time given to compound growth before retirement. The longer the runway, the less personal capital is required; the shorter the runway, the more the investor must substitute their own dollars for time.
Market-to-You Ratio: The number of dollars the market returns for every dollar personally contributed. Approximately $14:$1 over 30 years, $5.50:$1 over 20 years, and $1.50:$1 over 10 years. The core trade-off metric of the framework.
The Three-Fund Engine: The fixed set of three Fidelity funds used across all portfolio tiers: FXAIX (foundation), FNCMX (growth bridge), and FELX (the wild card engine). Allocation weights change per tier; the funds themselves do not.
FXAIX (Fidelity 500 Index Fund): The foundation fund. Tracks the S&P 500 (500 largest US companies). Expense ratio ~0.02%. 10-year average annual appreciation ~12.97%. The biggest, most boring fund — and the base of every portfolio tier.
FNCMX (Fidelity NASDAQ Composite Index Fund): The growth bridge. Tracks the entire NASDAQ, with heavier weighting toward tech and biotech. 10-year average annual appreciation ~16.91%. Higher reward and higher volatility than FXAIX; the bridge between safe and aggressive.
FELX (Fidelity Select Semiconductors Portfolio): The wild card engine. Invests only in semiconductor companies. 10-year average annual appreciation ~22.04%. The riskiest fund — semiconductors are cyclical and crash hard — but the engine that makes a 10-year retirement mathematically possible.
30-Year Portfolio: The low-aggression tier. Allocation: FXAIX 60% / FNCMX 30% / FELX 10%. Blended appreciation ~15%. Required contribution: $6/day. Personal contribution to $1M finish: ~$65,700.
20-Year Portfolio: The moderate-aggression tier. Allocation: FXAIX 35% / FNCMX 40% / FELX 25%. Blended appreciation ~16.81%. Required contribution: $22/day. Personal contribution to $1M finish: ~$160,600.
10-Year Portfolio: The high-aggression tier. Allocation: FXAIX 15% / FNCMX 35% / FELX 50%. Blended appreciation ~18.88%. Required contribution: $120/day. Personal contribution to $1M finish: ~$438,000. Requires ~$120,000+ household income.

// FREQUENTLY ASKED QUESTIONS

What is John's 3-Timeline Index Fund Retirement Framework?

It's a retirement planning method that calculates the exact daily dollar amount you need to invest to reach $1 million, starting from $0, using three Fidelity index funds (FXAIX, FNCMX, FELX) in allocations matched to your timeline. The three tiers — 30-year, 20-year, and 10-year — use the same funds but shift weight toward higher-growth funds as your time shrinks.

What is the $1 Million Finish Line?

The $1 Million Finish Line is the universal retirement target in this framework. At $1 million invested, the 4% Rule lets you withdraw $40,000 in your first year ($3,333/month) without draining the account, because the market typically grows faster than a 4% withdrawal rate — keeping your principal intact or even growing while you spend from it.

How much do I need to invest daily to retire with $1 million?

It depends on your timeline: roughly $6/day over 30 years (~$2,190/year), $22/day over 20 years (~$8,030/year), or $120/day over 10 years (~$43,800/year), all starting from $0. The shorter your runway, the more you pay out of pocket because you have less compounding time to do the heavy lifting for you.

How do I choose between the 10, 20, and 30-year portfolios?

Choose based on your timeline and household income. The 10-year plan requires ~$120,000+ income to sustain $3,650/month in contributions. Compare the Market-to-You Ratio: the 30-year plan returns ~$14 per dollar you contribute, the 20-year ~$5.50, and the 10-year only ~$1.50. Pick the plan whose daily contribution you can actually sustain for the full term.

How does this framework compare to a generic target-date retirement fund?

Unlike a one-size-fits-all target-date fund, this framework gives you an exact daily contribution number and specific fund allocations tuned to your chosen timeline. It makes the trade-off explicit: shorter timelines require aggressive semiconductor exposure (FELX) and far more personal capital. Target-date funds hide these mechanics; this framework surfaces the Market-to-You Ratio so you choose consciously.

When should I use the 10-year aggressive portfolio?

Use the 10-year portfolio (FXAIX 15% / FNCMX 35% / FELX 50%) only when you have a household income of ~$120,000+ and can genuinely sustain $3,650/month in contributions after living expenses. You must also be comfortable with 50% concentration in semiconductors — a cyclical sector that crashes hard. Below that income or risk tolerance, drop to the 20 or 30-year tier.

What results can I expect from the 30-year portfolio?

At $6/day into the 30-year portfolio (FXAIX 60% / FNCMX 30% / FELX 10%), you project ~$1,004,150 by year 30 with a blended appreciation of ~15%. Your personal contribution is only ~$65,700 — the market provides ~$938,450. That's a ~$14-per-dollar Market-to-You Ratio, meaning the market does roughly 93% of the work if you show up consistently.

What three funds does this framework use?

It uses three Fidelity funds: FXAIX (Fidelity 500 Index Fund, the foundation), FNCMX (Fidelity NASDAQ Composite Index Fund, the growth bridge), and FELX (Fidelity Select Semiconductors Portfolio, the wild card engine). The funds never change across tiers — only the allocation weights change. As your timeline shrinks, FXAIX shrinks while FNCMX and especially FELX expand.

Is it safe to put 50% of my portfolio in FELX semiconductors?

Not for everyone. FELX is a single-sector fund invested only in semiconductors, which are cyclical and crash hard during downturns. A 50% allocation is a concentrated bet on growth, used only in the 10-year plan to compensate for lost compounding time. It's a mathematical requirement of a compressed timeline — not a universal recommendation. Assess your risk tolerance honestly before committing.

How does starting with existing savings change my daily contribution?

Starting with a non-zero balance reduces your required daily contribution below the standard tier numbers, which are all built for a $0 start. Your existing savings begin compounding immediately, so the market has to make up less ground. You'd need a compound-growth calculator to find your precise adjusted daily number, but any starting balance lowers what comes out of your paycheck.

What is the Market-to-You Ratio?

The Market-to-You Ratio is the number of dollars the market returns for every dollar you personally contribute. It's approximately $14:$1 over 30 years, $5.50:$1 over 20 years, and $1.50:$1 over 10 years. It's the core trade-off metric of the framework — the longer your runway, the more free growth the market provides and the less of your own paycheck you spend.

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