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ERII correlations (Energy Recovery, Inc.)

Which assets move with ERII and which ones diversify it, computed from weekly returns across 4756 stocks and ETFs.

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

Volatility (ann.)
51.2%
3y weekly
Beta vs S&P 500
1.44
3y weekly
1-year return
-45.8%
price, adjusted
5-year return
-60.7%
price, adjusted
Market cap
$0.4B
latest
P/E ratio
30.4
trailing
Max drawdown
-72.4%
3y, daily closes
-45%0%+26%2025-09-052026-08-27
ERII over the last 12 months, weekly closes indexed to 100 at the start.

Stocks and ETFs most correlated with ERII

AssetCorrelation (3Y)
WDWalker & Dunlop, Inc0.52
MBCMasterBrand, Inc.0.51
CWHCamping World Holdings, Inc.0.48
RUSHBRush Enterprises, Inc.0.48
RUSHARush Enterprises, Inc.0.48

Best diversifiers for ERII

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

AssetCorrelation (3Y)
VXZiPath Series B S&P 500 VIX Mid-Term Futures ETN-0.33
ASSTStrive, Inc.-0.33
VXXiPath Series B S&P 500 VIX Short-Term Futures ETN-0.31

ERII vs benchmarks

ERII vs SPY 0.41 ERII vs QQQ 0.35

Get ERII data as JSON

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

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