Assembly Biosciences Inc
Assembly Biosciences Inc (ASMB) Unusual Options Activity Today
ASMB options volume power reached 12x on the previous trading day. The highest reading was on the $20 CALL expiring 2026-12-18.
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Checking ASMB unusual options activity helps you spot when traders are making outsized bets on Assembly Biosciences Inc before the broader market catches on. Assembly Biosciences 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 ASMB 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 ASMB unusual options flow today can reveal large block trades, sweeps across exchanges, and aggressive directional bets. Tracking ASMB unusual options volume across calls and puts helps you separate hedging activity from genuinely speculative positioning, and ASMB unusual options flow data becomes especially valuable around earnings, product launches, and macro events.
Assembly Biosciences, Inc., a clinical-stage biotechnology company, discovers and develops therapeutic candidates for the treatment of hepatitis B virus (HBV) infection in the United States. The company's lead product candidate is Vebicorvir, which as completed Phase 2 clinical trials to treat patients with chronic HBV infection. It is also developing ABI-H3733 that has completed Phase 1a clinical study, and ABI-4334, which is in pre-clinical trials for the treatment of HBV. The company has collaboration agreements with BeiGene, Ltd. and Arbutus Biopharma Corporation; and Antios Therapeutics, Inc.
to evaluate a triple combination treatment in patients with chronic hepatitis B virus infection. It also has strategic license agreements with Indiana University Research and Technology Corporation; and Door Pharmaceuticals, LLC. The company was formerly known as Ventrus Biosciences, Inc. and changed its name to Assembly Biosciences, Inc. in June 2014. Assembly Biosciences, Inc. was incorporated in 2005 and is headquartered in South San Francisco, California.
Catalysts rarely arrive without a footprint, and ASMB unusual options activity is often where that footprint shows up first. Our scanner tracks Assembly Biosciences 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 ASMB unusual options volume on the call side or chasing put sweeps, Assembly Biosciences Inc's unusual options flow today is one click away, so put it on your radar before the headlines hit.
| 15.00 | 6.80 | 11.00 | 8.90 | 176% | 0 | 0 | — |
| 17.50 | 4.80 | 8.50 | 6.65 | 152% | 0 | 0 | — |
| 20.00 | 1.70 | 6.00 | 3.85 | 80% | 0 | 0 | — |
| 22.50 | 0.50 | 4.90 | 2.70 | 110% | 0 | 0 | — |
| 25.00 | — | 3.00 | 3.00 | 180% | 0 | 120 | 0.00% |
| 15.00 | — | 4.90 | 4.90 | 558% | 0 | 0 | — |
| 17.50 | — | 4.90 | 4.90 | 452% | 0 | 0 | — |
| 20.00 | — | 4.90 | 4.90 | 361% | 0 | 0 | — |
| 22.50 | — | 0.90 | 0.90 | 69% | 0 | 6 | 0.00% |
| 25.00 | 0.10 | 3.60 | 1.85 | 45% | 0 | 67 | 0.00% |
As of September 29, 2026
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