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CSTL correlations (Castle Biosciences, Inc.)

CSTL measured against 4756 US stocks and ETFs: closest co-movers on one side, the best offsets on the other, all from weekly returns.

Data as of 2026-08-27 · refreshed every trading day · US Listed

Volatility (ann.)
64.2%
3y weekly
Beta vs S&P 500
0.79
3y weekly
1-year return
+53.8%
price, adjusted
5-year return
-54.0%
price, adjusted
Market cap
$1.0B
latest
Max drawdown
-57.8%
3y, daily closes
-19%0%+79%2025-09-052026-08-27
CSTL over the last 12 months, weekly closes indexed to 100 at the start.

Stocks and ETFs most correlated with CSTL

AssetCorrelation (3Y)
NEONeoGenomics, Inc.0.50
TCMDTactile Systems Technology, Inc.0.50
GHGuardant Health, Inc.0.50
VCYTVeracyte, Inc.0.48
EVVEaton Vance Limited Duration Income Fund0.48

Best diversifiers for CSTL

If the goal is offsetting CSTL, these tracked assets have historically moved the most on their own terms.

AssetCorrelation (3Y)
VXZiPath Series B S&P 500 VIX Mid-Term Futures ETN-0.22
VXXiPath Series B S&P 500 VIX Short-Term Futures ETN-0.21
RAYRaytech Holding Limited-0.20

CSTL vs benchmarks

CSTL vs SPY 0.18 CSTL vs QQQ 0.11

Get CSTL data as JSON

Free API · no key required
$ curl https://www.pairbook.io/api/v1/symbols/cstl.json

Correlations, diversifiers, beta and volatility for CSTL, plus one endpoint per pair. API documentation.

CSTL inside major ETFs

ETFCSTL weight
IBBiShares Biotechnology ETF0.07%