Satoshi Institute · scenario
If You Started DCAing Bitcoin at the 2021 Top
$100 · weekly · since 2021-11-01
The worst possible entry, chosen on purpose. DCA's entire pitch is that it survives exactly this. See whether it did.
Change the inputs
Satoshi Institute · backtest
Dollar-cost averaging, backtested
Pick an amount and a cadence. See what steady buying would have become, and what you'd have done buying something else on the same schedule.
Putting $100 into Bitcoin weekly since Nov 2021
That's 0.5798 BTC at an average price of $41,568.
Scenarios
Pre-set backtests
The common questions, already answered. Open one to see the numbers, or change the inputs above.
What this leaves out. Prices are weekly closes from CoinGecko. No fees, no spreads, no taxes, and no slippage, so real-world returns run lower. Past performance is not a forecast, and a different start date can flip the story entirely. This is a backtest for understanding, not advice. Scenarios that show a side-by-side S&P 500 comparison use Tiingo EOD data on the SPY ETF as a proxy.
Used together with
Both companion tools support the same 95% likely-range view, so a DCA read stays consistent when you compare against gold, equities, or a retirement plan.
Related scenarios
What this leaves out. Weekly closes from CoinGecko, no fees, no spreads, no taxes, no slippage. Past performance is not a forecast. A different start or end week can change the outcome. Educational tool, not investment, accounting, or security advice.