How much would $1,000 invested in AMTM be worth today?

$1,000 invested in AMTM on September 24, 2024 would be worth $673 on October 20, 2026, with dividends reinvested — −17.4% a year compounded (CAGR).

How far back does the AMTM calculator go?

AMTM data begins September 24, 2024, with a close every session. Pick any start and end date in that span — 2 years, 1 month of history.

Does this include dividends?

Yes. The default "dividends reinvested" view uses split- and dividend-adjusted closing prices — a standard total-return approximation that excludes taxes and fees. A price-only view (split-adjusted, no dividends) is also available.

If You Invested $1,000 in Amentum Holdings (AMTM): What It Would Be Worth Today

AMTM

$19.87+2.00%

as of close, Oct 20, 2026

☾ AH $19.87 +2.00%

Amentum Holdings Inc.Stock · IndustrialsRussell 1000 · 0.005% of IWBRussell 3000 · 0.004% of IWVUS Stock Market · 0.004% of VTI

PeersRTOSPYQQQNVDAAAPLMSFT

Share this page

Your investment#

How much

All at once, on the start date

Pick start & end dates2 years, 1 month

Start

Key dates

Start at a well-known dateRecentMarket topsMarket bottomsEvents

Bought at that day's close

End

Key dates

End at a well-known dateMarket topsMarket bottomsEvents

Latest close, Oct 20, 2026

Or drag the slider to set start and end dates

2024 to today, log scale

2026Sep 2024Today

Options

Result#

$1,000Sep 24, 2024$673Oct 20, 20260.67×your money

$1,000 invested in AMTM on September 24, 2024 was worth $673 on October 20, 2026, with dividends reinvested.

That’s −17.4% a year compounded (CAGR) over 2 years, 1 month: 0.67 times your money.

Over the same dates the same $1,000 would be worth $1,377 in the S&P 500 and $1,493 in the Nasdaq-100: AMTM trailed both the S&P 500 and the Nasdaq-100.

Price only$673if dividends were spent

Biggest fall−51.7%Feb 6 to Sep 30, 2026

At a flat 5% a year$1,106a savings account's rate

Loss$327on $1,000 put in

How this period ranks#

These dates cover the whole record, so there is no other period this long to compare.

Your dates

−20.7%−19.7%

Worst: —Best: —

Point at a bar to see which periods are in it. Month end to month end.

Growth of $1,000 in AMTM, September 24, 2024 to October 20, 2026#

Your $1,000$Your buySame plan in the S&P 500The highA low

Lowest value$557 · Apr 2025Highest value$1,272 · Feb 2026$614 · Sep 2026$839 · Oct 2024$

$800$1,000$1,200$1,400$673

Oct2025AprJulOct2026AprJulOct

How far AMTM was below its previous high. The biggest fall: −51.7% from Feb 6, 2026 to Sep 30, 2026, not back to the high by the end date.

−51.7% from its high−50.8% from its high−23.3% from its high−13.0% from its high

high−52%

Your one buy. $1,000 on September 24, 2024, worth $673 on October 20, 2026. Pick Monthly or Yearly to see a plan's buys.

paid0.67×

What $1,000 would be worth on October 20, 2026, by start date#

Each point is the same amount invested that day and held to October 20, 2026, dividends reinvested. Above the line it made money.

Your start

$600$800$1,000$1,200

Oct2025AprJulOct2026AprJulOct

$1,000 invested in AMTM, by year#

Started on each year's first close and held to Oct 20, 2026, dividends reinvested.

Started	Worth Oct 20, 2026	Multiple	A year (CAGR)	Same in the Nasdaq-100
2024	$673	0.67×	−17.4%	$1,493
2025	$917	0.92×	−4.7%	$1,418
2026	$652	0.65×	—	$1,174

Methodology#

A buy is made at the start date's close, or the next session's when the market was closed that day, and valued at the end date's close; a monthly or yearly plan buys on the same day of each month or year. "Dividends reinvested" uses split- and dividend-adjusted closes (a standard total-return approximation; taxes and fees excluded). "Price-only" uses split-adjusted closes. AMTM data begins September 24, 2024; values as of October 20, 2026 and refresh daily. The ranking compares month-end to month-end periods. Past performance does not predict future returns; not investment advice.

See the live AMTM chart and fundamentals on the AMTM quote page or the S&P 500 return calculator.

FAQ#

How much would $1,000 invested in AMTM be worth today?: $1,000 invested in AMTM on September 24, 2024 would be worth $673 on October 20, 2026, with dividends reinvested — −17.4% a year compounded (CAGR).
How far back does the AMTM calculator go?: AMTM data begins September 24, 2024, with a close every session. Pick any start and end date in that span — 2 years, 1 month of history.
Does this include dividends?: Yes. The default "dividends reinvested" view uses split- and dividend-adjusted closing prices — a standard total-return approximation that excludes taxes and fees. A price-only view (split-adjusted, no dividends) is also available.

AMTM return calculator