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If you invested $100 a month in Comfort Systems USA

Buying $100 at each monthly close from November 2016 through October 2026, with dividends reinvested, turns $12,000.00 contributed into $217,074.21 as of October 29, 2026. Annualized money-weighted IRR: 55.42%.

Monthly scheduleInvestedValueAnnualized (money-weighted IRR)SPY same-schedule value (reinvested)
5 years · $50/month$3,000.00$18,959.4883.16%$4,658.67 · 60 contributions · $3,000.00 invested · 2021-10 to 2026-10
5 years · $100/month$6,000.00$37,918.9583.16%$9,317.33 · 60 contributions · $6,000.00 invested · 2021-10 to 2026-10
5 years · $500/month$30,000.00$189,594.7683.16%$46,586.66 · 60 contributions · $30,000.00 invested · 2021-10 to 2026-10
10 years · $50/month$6,000.00$108,537.1055.42%$13,474.72 · 120 contributions · $6,000.00 invested · 2016-10 to 2026-10
10 years · $100/month$12,000.00$217,074.2155.42%$26,949.44 · 120 contributions · $12,000.00 invested · 2016-10 to 2026-10
10 years · $500/month$60,000.00$1,085,371.0355.42%$134,747.18 · 120 contributions · $60,000.00 invested · 2016-10 to 2026-10
20 years · $50/month$12,000.00$784,007.4134.87%$56,585.20 · 240 contributions · $12,000.00 invested · 2006-10 to 2026-10
20 years · $100/month$24,000.00$1,568,014.8234.87%$113,170.40 · 240 contributions · $24,000.00 invested · 2006-10 to 2026-10
20 years · $500/month$120,000.00$7,840,074.1134.87%$565,852.00 · 240 contributions · $120,000.00 invested · 2006-10 to 2026-10

Asset last price date: 2026-10-29; SPY last price date: 2026-10-29. The latest month may be incomplete. Zero initial investment; contributions start the following month. Monthly observations are estimates, not executable trades. Fees, taxes and FX excluded. Curated surviving assets; delisted companies are absent. Not financial advice. Past performance doesn’t predict future returns.

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Monthly closing prices. No fees, taxes or FX.

YOUR INVESTMENT TODAY
$217,074.21

$205,074.21 total gain · 1708.95% total return

Amount invested$12,000.00
Annualized (money-weighted IRR)55.42%
Investment multiple18.09×

● Your investment● S&P 500 (SPY)

Comfort Systems USA history · Methodology

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