DCA calculator · S&P 500
$100/month into the S&P 500
See what $100 monthly S&P 500 DCA would have been worth historically — then compare adaptive sizing.
2015-01-02 → 2026-08-28
$100/month · Monthly DCA · S&P 500
Contributed$14,056
Blind DCA value$36,704
Return+161.1%
SteadyGrow value$47,537
vs blind DCA+$10,833
Lump sum (same capital)$63,524
S&P 5002015-01-02 → 2026-08-28 · $100/month
+$10,833 vs blind (+29.5%)Ended +29.5%
Blind DCASteadyGrow
What if your contribution wasn't always the same?
Blind DCA deploys $100/month every period. SteadyGrow keeps the same long-term habit but sizes weeks from valuation and regime — more when markets are cheap, less when they're stretched.