SELLAS Life Sciences Group Inc

SLSNASDAQ · USD
12.02USD+0.65 (+5.72%)
2210

SELLAS Life Sciences Group Inc (SLS) Options Open Interest

SLS options open interest is 945,519 contracts. The 2-week average daily volume is 42,001 contracts across the chain.

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Monitoring SLS open interest helps you see where real money is positioned on SELLAS Life Sciences Group Inc's options and which strikes are attracting the most commitment from traders. SELLAS Life Sciences Group Inc's open interest reflects the total number of outstanding contracts that have not been closed or exercised, making it a powerful gauge of liquidity, conviction, and potential support and resistance zones. Use our scanner to monitor SLS options open interest in real time and find the strikes that matter.

Open interest is distinct from volume: volume counts how many contracts are traded in a session, while open interest counts how many remain open at the end of the day. Rising SLS options open interest alongside rising volume suggests new positions are being built, while falling open interest signals positions are being closed. Heavy open interest at specific strikes often acts as a magnet near expiration and can hint at where dealers and large traders expect SELLAS Life Sciences Group Inc to settle.

SELLAS Life Sciences Group, Inc., a late-stage biopharmaceutical company, focuses on the development of novel cancer immunotherapies for various cancer indications in the United States. Its lead product candidate is galinpepimut-S (GPS), a cancer immunotherapeutic agent that targets Wilms tumor 1, which is in Phase III clinical trials for the treatment of acute myeloid leukemia; and in Phase 1/2 clinical trials for the treatment for ovarian cancer. The company also develops nelipepimut-S, a cancer immunotherapy that targets human epidermal growth factor receptor 2, which is in Phase 2b clinical trials for the treatment of early-stage breast cancer.

It has a strategic collaboration with Merck & Co., Inc. to evaluate GPS as it is administered in combination with PD1 blocker pembrolizumab in a Phase 1/2 clinical trial enrolling patients in up to five cancer indications, including hematologic malignancies and solid tumors. The company was founded in 2012 and is headquartered in New York, New York.

Pin risk into expiration, dealer positioning, liquidity checks for large orders — all of it starts with knowing where SLS open interest is concentrated. Our scanner maps SELLAS Life Sciences Group Inc's open interest across every strike and expiry, flags unusual buildups, and lets you drill into the contracts that institutional money is actually holding. Trade SELLAS Life Sciences Group Inc's options open interest as the signal it is, not as an afterthought.

2026-09-25
Calls
16.000.100.10232%+0.08924,111
20.000.350.35452%+0.15622,187
15.000.050.100.08186%+0.08311,992
17.000.100.10261%+0.08141,909
11.000.550.950.75121%+0.6316705
Puts
10.000.100.150.13132%-0.15029,225
11.000.300.450.38121%-0.36831,003
8.000.150.15288%-0.0872943
7.000.050.05288%-0.0345880
9.500.100.10155%-0.1092863

As of September 21, 2026

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Track SLS open interest across every strike and expiration, identify where conviction is building, and trade with the positioning data on your side.

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