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PEN correlations (Penumbra, Inc.)

PEN 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.)
36.0%
3y weekly
Beta vs S&P 500
0.30
3y weekly
1-year return
+20.3%
price, adjusted
5-year return
+18.7%
price, adjusted
Market cap
$12.6B
latest
P/E ratio
79.5
trailing
Max drawdown
-45.5%
3y, daily closes
-19%0%+28%2025-09-052026-08-27
PEN over the last 12 months, weekly closes indexed to 100 at the start.

Stocks and ETFs most correlated with PEN

AssetCorrelation (3Y)
COMPCompass, Inc.0.39
MDGLMadrigal Pharmaceuticals, Inc.0.38
RENXRenX Enterprises Corp.0.37
GRWGGrowGeneration Corp.0.36
CXDOCrexendo, Inc.0.36

Best diversifiers for PEN

These are the assets whose returns had the least to do with PEN's, historically the most independent picks in our universe.

AssetCorrelation (3Y)
INTSIntensity Therapeutics, Inc.-0.22
NTRPNextTrip, Inc.-0.22
DGZDB Gold Short ETN due February 15, 2038-0.20

PEN vs benchmarks

Get PEN data as JSON

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

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

PEN inside major ETFs

ETFPEN weight
MDYSPDR S&P MidCap 400 ETF0.35%