What if · since 2015 · S&P 500
What if I invested $1,000 every month in S&P 500 since 2015?
How much would $1,000 monthly into S&P 500 since 2015 be worth? Blind DCA vs adaptive contributions.
2015-01-02 → 2026-08-28
$1000/month · Monthly DCA · S&P 500
Contributed$140,539
Blind DCA value$366,992
Return+161.1%
SteadyGrow value$475,311
vs blind DCA+$108,319
Lump sum (same capital)$635,155
S&P 5002015-01-02 → 2026-08-28 · $1000/month
+$108,319 vs blind (+29.5%)Ended +29.5%
Blind DCASteadyGrow
What if your contribution wasn't always the same?
Blind DCA deploys $1000/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.