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

$1,000 invested in CSTL on July 25, 2019 would be worth $1,549 on October 20, 2026, with dividends reinvested — 6.2% a year compounded (CAGR).

How far back does the CSTL calculator go?

CSTL data begins July 25, 2019, with a close every session. Pick any start and end date in that span — 7 years, 3 months 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 Castle Biosciences (CSTL): What It Would Be Worth Today

CSTL

$33.15+3.06%

as of close, Oct 20, 2026

☾ AH $33.15 +3.06%

Castle Biosciences Inc.Stock · HealthcareRussell 2000 · 0.02% of IWMUS Stock Market · 0.0009% of VTIRussell 3000 · 0.0007% of IWV

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Your investment#

How much

All at once, on the start date

Pick start & end dates7 years, 3 months

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

2019 to today, log scale

Covid2022 bear market

202220242026Jul 2019Today

Options

Result#

$1,000Jul 25, 2019$1,549Oct 20, 20261.5×your money

$1,000 invested in CSTL on July 25, 2019 was worth $1,549 on October 20, 2026, with dividends reinvested.

That’s 6.2% a year compounded (CAGR) over 7 years, 3 months: 1.5 times your money.

Over the same dates the same $1,000 would be worth $2,846 in the S&P 500 and $3,882 in the Nasdaq-100: CSTL trailed both the S&P 500 and the Nasdaq-100.

Price only$1,549if dividends were spent

Biggest fall−88.0%Feb 9, 2021 to Jun 5, 2023

At a flat 5% a year$1,424a savings account's rate

Gain$549on $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

−70%0%160%

Worst: —Best: —

One scale for every length, so longer periods bunch up. Point at a bar.

Growth of $1,000 in CSTL, July 25, 2019 to October 20, 2026#

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

Lowest value$545 · Jun 2023Lowest value$545 · Jun 2023Highest value$4,548 · Feb 2021$736 · Oct 2019$1,079 · Mar 2020$884 · Aug 2019$

$0$1,000$3,000$4,000$1,549

2020202120222023202420252026

How far CSTL was below its previous high. The biggest fall: −88.0% from Feb 9, 2021 to Jun 5, 2023, not back to the high by the end date.

−88.0% from its high−43.6% from its high−35.0% from its high−21.1% from its high

high−88%

Your one buy. $1,000 on July 25, 2019, worth $1,549 on October 20, 2026. Pick Monthly or Yearly to see a plan's buys.

1.5×paid

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

$0$500$1,000$1,500$2,000$2,500

2020202120222023202420252026

$1,000 invested in CSTL, 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
2019	$1,549	1.5×	6.2%	$3,882
2020	$980	0.98×	−0.3%	$3,457
2021	$481	0.48×	−11.9%	$2,399
2022	$726	0.73×	−6.4%	$1,838
2023	$1,455	1.5×	10.4%	$2,772
2024	$1,510	1.5×	15.9%	$1,808
2025	$1,182	1.2×	9.8%	$1,418
2026	$860	0.86×	—	$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. CSTL data begins July 25, 2019; 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 CSTL chart and fundamentals on the CSTL quote page or the S&P 500 return calculator.

FAQ#

How much would $1,000 invested in CSTL be worth today?: $1,000 invested in CSTL on July 25, 2019 would be worth $1,549 on October 20, 2026, with dividends reinvested — 6.2% a year compounded (CAGR).
How far back does the CSTL calculator go?: CSTL data begins July 25, 2019, with a close every session. Pick any start and end date in that span — 7 years, 3 months 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.

CSTL return calculator