What if · since 2021 · S&P 500
What if I invested $500 every month in S&P 500 since 2021?
How much would $500 monthly into S&P 500 since 2021 be worth? Blind DCA vs adaptive contributions.
2021-01-01 → 2026-08-28
$500/month · Monthly DCA · S&P 500
Contributed$34,152
Blind DCA value$55,852
Return+63.5%
SteadyGrow value$64,522
vs blind DCA+$8,670
Lump sum (same capital)$75,672
S&P 5002021-01-01 → 2026-08-28 · $500/month
+$8,670 vs blind (+15.5%)Ended +15.5%
Blind DCASteadyGrow
What if your contribution wasn't always the same?
Blind DCA deploys $500/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.