What if · since 2015 · S&P 500
What if I invested $500 every month in S&P 500 since 2015?
How much would $500 monthly into S&P 500 since 2015 be worth? Blind DCA vs adaptive contributions.
2015-01-02 → 2026-08-28
$500/month · Monthly DCA · S&P 500
Contributed$70,266
Blind DCA value$183,488
Return+161.1%
SteadyGrow value$237,645
vs blind DCA+$54,157
Lump sum (same capital)$317,564
S&P 5002015-01-02 → 2026-08-28 · $500/month
+$54,157 vs blind (+29.5%)Ended +29.5%
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.