$250 a month in the S&P 500 since 2023

Investing $250 every month in an S&P 500 index fund from January 2023 to Sep 2026 added up to $11,250. With dividends reinvested, it would be worth about $16,114.

Real monthly S&P 500 data, updated monthly. How we calculate
Start
End

What most index funds and dividend reinvestment plans do.

$250 a month into the S&P 500 since Jan 2023 is worth

$16,114

You would have put in $11,250 over 45 monthly buys.

$11,250You put in
+$4,864Growth
20.3%Per year
−5%Worst dip
$0$5k$10k$15k$20kJan 2023Jul 2023Jan 2024Jul 2024Jan 2025Jul 2025Jan 2026Jul 2026
Value (S&P 500)Money you put in

If you had invested the whole $11,250 in Jan 2023, it would be worth $22,799. S&P 500 monthly average prices, dividends reinvested (recent months use the last reported dividend, Jun 2023). Data through Sep 2026. One buy per month at that month's average price; no fees or taxes. Past returns do not predict future returns.

The result

$11,250You put in
$16,114Worth in Sep 2026
20.3%Yearly return
−5%Worst drop on the way

That is 45 monthly buys. The balance ended at 1.4× the money put in, a money-weighted return of 20.3% a year. Without reinvesting dividends it would be $15,747, so dividends added $367.

Prices rose along the way, so the deposits are worth more in today's money than their face value: $11,250 of deposits equals about $11,892 in today's dollars. Even measured that way, the plan ended 1.4× ahead.

The hardest stretch: the balance fell 5% from its high around Apr 2025, during the 2025 tariff sell-off. Someone who kept buying through that drop bought shares cheaply, which is a large part of the final number.

How the balance grew
AfterPut inWorth
Now (Sep 2026)$11,250$16,114

How the balance grew, with dividends reinvested. No fees or taxes.

Try other amounts and years

Common questions

How much is $250 a month in the S&P 500 since 2023 worth today?

About $16,114 as of Sep 2026, from $11,250 invested, with dividends reinvested and no fees or taxes.

What was the yearly return?

20.3% a year, measured as a money-weighted return that accounts for when each monthly deposit went in.

What was the worst moment?

A 5% fall from the previous high around Apr 2025, during the 2025 tariff sell-off. The plan only reached today's value because the buying continued.

Will the next 4 years be the same?

Nobody knows. Past returns do not predict future returns, and the S&P 500 has had decade-long stretches with little gain.

Based on the S&P 500 monthly average level with dividends reinvested (an index fund before its small fee). Educational estimates, not investment advice. Past returns do not predict future returns.

The Weekly Fat Stack · starts January 2027

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