What If I'd HeldThe regret calculator.

$1,000 in Automatic Data Processing, Inc. in 2001 → $9,651 today

If you'd invested $1,000 in Automatic Data Processing, Inc. (ADP) on January 1, 2001 — at the December 2000 month-end close of $28.73 — and held to the latest close (2026-08-), you'd have $9,651. That's a +865.1% total return — beating the S&P 500, where the same $1,000 became $5,838.

$1,000 in 2001$9,651Total return+865.1%Multiple9.7×CAGR+9.2%

Nearby years: 2000 · 2002 · 2003 · 2004 · 2005 all years →

FAQ

How much is $1,000 invested in ADP in 2001 worth today?

$1,000 invested in Automatic Data Processing, Inc. (ADP) at the month-end close of 2000-12- would be worth $9,651 at the latest month-end close (2026-08-), a total return of +865.1% with dividends reinvested.

Did $1,000 in ADP in 2001 beat the market?

Over the same span, $1,000 in the S&P 500 index would be worth $5,838 — so Automatic Data Processing, Inc. (ADP) beat the index by +65.3%.

What does "month-end close" mean for this calculation?

The scenario invests at the December 2000 month-end close (the price entering 2001) and values the position at the most recent month-end close (2026-08-). Intra-month extremes are shown on the ADP calculator page.

Is the 2001–2026 return in ADP typical?

No single year is typical. ADP's best calendar-year return since 1980 was about +71.7%, and its worst was -32.7%.

Methodology

Automatic Data Processing, Inc. (ADP) total-return data from January 2001 through the latest month-end close (2026-08-).

The entry price is the 2000 December month-end close and the exit is the latest available month-end close, both from adjusted (split and dividend) Yahoo Finance historical data.

Month-end resolution, no taxes or fees, and history never guarantees the future. For exact-date precision (including buying at a panic low), use the ADP calculator page.

Full methodology →

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Data: Yahoo Finance. As of 2026-08-. Not financial advice.