Energy Recovery Inc
Energy Recovery Inc (ERII) Unusual Options Activity Today
ERII options volume power reached 4.38x on the previous trading day. The highest reading was on the $7.5 CALL expiring 2026-10-16.
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Checking ERII unusual options activity helps you spot when traders are making outsized bets on Energy Recovery Inc before the broader market catches on. Energy Recovery Inc's unusual options activity flags contracts trading at multiples of their average daily volume, often signaling that informed money is positioning ahead of a catalyst. Use our scanner to monitor ERII unusual options activity today and surface the prints that deserve a second look.
Unusual options flow typically refers to trades where volume vastly exceeds open interest at a given strike, or where total contract volume on a name spikes well above its norm. Watching ERII unusual options flow today can reveal large block trades, sweeps across exchanges, and aggressive directional bets. Tracking ERII unusual options volume across calls and puts helps you separate hedging activity from genuinely speculative positioning, and ERII unusual options flow data becomes especially valuable around earnings, product launches, and macro events.
Energy Recovery, Inc., together with its subsidiaries, designs, manufactures, and sells various solutions for the seawater reverse osmosis desalination and industrial wastewater treatment industries worldwide. The company operates through Water and Emerging Technologies segments. It offers a suite of products, including energy recovery devices, and high-pressure feed and recirculation pumps; hydraulic turbochargers and boosters; and spare parts, as well as repair, field, and commissioning services. The company also offers a solution to reduce energy consumption in natural gas processing and in refrigeration systems that use carbon dioxide.
It provides its products under the ERI, Ultra PX, PX, Pressure Exchanger, PX Pressure Exchanger, PX PowerTrain, VorTeq, IsoBoost, AT, and AquaBold names to large engineering, procurement, and construction firms; end-users and industry consultants; original equipment manufacturers; and aftermarket customers. The company was incorporated in 1992 and is headquartered in San Leandro, California.
Catalysts rarely arrive without a footprint, and ERII unusual options activity is often where that footprint shows up first. Our scanner tracks Energy Recovery Inc's unusual options flow in real time, ranks prints by volume-to-open-interest, premium spent, and aggressor side, and separates real conviction from noise. Whether you're looking at ERII unusual options volume on the call side or chasing put sweeps, Energy Recovery Inc's unusual options flow today is one click away, so put it on your radar before the headlines hit.
| 2.50 | 3.70 | 4.80 | 4.25 | 295% | 0 | 0 | — |
| 5.00 | 1.35 | 2.10 | 1.73 | 85% | 0 | 10 | 0.00% |
| 7.50 | — | 0.20 | 0.20 | 88% | 0 | 81 | 0.00% |
| 10.00 | — | 0.05 | 0.05 | 126% | 0 | 1 | 0.00% |
| 12.50 | — | 0.75 | 0.75 | 374% | 0 | 0 | — |
| 2.50 | — | 0.75 | 0.75 | 719% | 0 | 0 | — |
| 5.00 | — | 0.75 | 0.75 | 317% | 0 | 0 | — |
| 7.50 | 0.50 | 1.20 | 0.85 | 54% | 0 | 9 | 0.00% |
| 10.00 | 2.70 | 3.90 | 3.30 | 102% | 0 | 0 | — |
| 12.50 | 5.00 | 6.50 | 5.75 | 26% | 0 | 0 | — |
As of October 1, 2026
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