Alto Neuroscience Inc

ANRONYSE · USD
26.43USD-0.15 (-0.57%)
2210

Alto Neuroscience Inc (ANRO) Unusual Options Activity Today

ANRO options volume power reached 2x on the previous trading day. The highest reading was on the $15 PUT expiring 2026-11-20.

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Checking ANRO unusual options activity helps you spot when traders are making outsized bets on Alto Neuroscience Inc before the broader market catches on. Alto Neuroscience 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 ANRO 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 ANRO unusual options flow today can reveal large block trades, sweeps across exchanges, and aggressive directional bets. Tracking ANRO unusual options volume across calls and puts helps you separate hedging activity from genuinely speculative positioning, and ANRO unusual options flow data becomes especially valuable around earnings, product launches, and macro events.

Alto Neuroscience, Inc. operates as a clinical-stage biopharmaceutical company that engages in the psychiatry drug development business. The company develops ALTO-100 for the treatment of patients with major depressive disorder (MDD) and post-traumatic stress disorder; ALTO-300, a small molecule melatonergic agonist and serotonergic antagonist with antidepressant properties to treat patients with MDD; and ALTO-101, a novel small molecule phosphodiesterase 4 inhibitor for the treatment of cognitive impairment associated with schizophrenia. It also develops ALTO-203, a novel small-molecule histamine H3 receptor inverse agonist to treat patients with MDD and higher levels of anhedonia, and ALTO-202, an investigational orally bioavailable antagonist of the GluN2B subunit of the NMDA receptor for the treatment of MDD.

In addition, the company develops novel pharmacodynamically synergistic combinations and an AI-enabled biomarker platform that combine sources of information on patients brain activity and behavior to identify patients to respond to novel product candidates. Alto Neuroscience, Inc. was incorporated in 2019 and is based in Los Altos, California.

Catalysts rarely arrive without a footprint, and ANRO unusual options activity is often where that footprint shows up first. Our scanner tracks Alto Neuroscience 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 ANRO unusual options volume on the call side or chasing put sweeps, Alto Neuroscience Inc's unusual options flow today is one click away, so put it on your radar before the headlines hit.

2026-10-16
Calls
2.5022.5026.5024.50804%00—
5.0020.0024.0022.00548%00—
7.5017.5021.5019.50417%00—
10.0015.0019.0017.00328%00—
12.5012.5016.5014.50261%00—
Puts
2.50—0.050.05524%0200.00%
5.00—4.904.901,000%00—
7.50—4.904.901,000%00—
10.00—4.904.90907%00—
12.50—4.904.90726%00—

As of September 29, 2026

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