Investable portfolio
offline$—
Day
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Total gain
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Cash
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By bucket
Investable portfolio = your holdings + cash. Not your full net worth (it excludes home, debts, outside assets).
Holdings
Your next moves
Atlas guides process; it is not financial advice and gives no buy/sell calls. Everything you enter stays on this device. Live quotes are read-only and may be delayed.
You & your policy
Profile complete0%
Atlas can't give you personal guidance until it knows your situation. Two minutes sets it up.
The compounding engine
Projected value in 20 years — base case
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What builds it (base case)
You add $0Growth $0
Real markets are lumpy, not a smooth curve. A bad decade (or a fat-tailed crash) can land below the bear line — and a poor early run hurts most. This is a center of gravity, not a promise. The levers you actually control are savings, time, and the goal — not the return.
Starting from today
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Monthly contribution$200 /mo
Time horizon20 yrs
Goal$100,000
Index returns are uncertain. The long-run S&P average is ~10.5% nominal, ~7% real (as-of long-run history) — so 6/8/10% is an honest band, not a forecast.
The system
What the durable winners actually did
A century of evidence: almost no one beats the market by picking, and the edge that survives is process, cost, and behavior. The books disagree on how much active skill is possible — so Atlas keeps the passive core as the default and treats selection and trading as separate, optional, governed tracks.
1
Lay the foundation
3–6 months of expenses in cash; clear high-interest debt. Never invest money you'll need soon.
Survival is the precondition for compounding.
2
Own the whole market, cheaply
A low-cost broad index is the core. Investors as a group earn the market minus costs — and 85–90% of active funds trail the index over 15 years (SPIVA, current), with past winners not persisting.
Bogle: costs are the one thing you control.
3
Automate contributions
A fixed monthly transfer on payday. This — not returns — is most of your path to the goal.
Pay yourself first; remove the decision.
4
Shelter it from tax & allocate by life stage
Use tax-advantaged accounts; hold more stock when young and shift toward bonds as your remaining earning years shrink (Malkiel).
Allocation drives >90% of the result, not stock picks.
5
Stay the course
Missing the best days badly cuts long-run returns — and they cluster next to the worst. Don't sell in panic; don't chase what's already run.
Behavior is where most investors lose.
6
Rebalance with new money
Direct fresh contributions to whatever's underweight rather than selling — no taxes, no timing.
Quiet, mechanical, relentless.
Tools
Calculators run on-device. Research prompts copy into Claude or Cowork — each structures your thinking and lists what to verify; it never gives a recommendation, and never trust a number it states that you haven't checked against the filing (SEC EDGAR).
Calculators
Research prompts
▲ Active-trading tools (off by default)
Decision journal
Every active position gets a written thesis, a value range, the things you're watching, and the kill-criteria — set before you buy, and versioned so you can't quietly rewrite history. The honesty engine: it tells you whether your picks beat just holding the index.