Comparison
What if you invest $1,000/month for 10 years?
Historical $1,000/month S&P 500 DCA over about 10 years — contributions, ending value, and adaptive sizing.
| Last ~10 years | Since 2015 | |
|---|---|---|
| Window | 2016-01-01 → 2026-08-28 | 2015-01-02 → 2026-08-28 |
| Contributed | $128,539 | $140,539 |
| Blind DCA value | $313,240 | $366,992 |
| SteadyGrow | $385,986 | $475,311 |
Last ~10 years
2016-01-01 → 2026-08-28
$1000/month · Monthly DCA · S&P 500
Contributed$128,539
Blind DCA value$313,240
Return+143.7%
SteadyGrow value$385,986
vs blind DCA+$72,747
Lump sum (same capital)$574,821
S&P 5002016-01-01 → 2026-08-28 · $1000/month
+$72,747 vs blind (+23.2%)Ended +23.2%
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.
Since 2015
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.