— Why it moved
Why STIM Stock Gapped and Tanked Today — August 11, 2026
Neuronetics posted better-than-expected earnings and gapped up at the session's start, but the alert caught the absolute high before a full fade.
What moved STIM stock
Neuronetics manufactures medical devices for psychiatric disorders, primarily known for its NeuroStar transcranial magnetic stimulation system. The company reported a Q2 revenue beat of $41.6 million and flipped to positive adjusted EBITDA. Pre-market buyers rushed in on the headline, but the rally had no legs once regular hours kicked off.
The mechanics
With a 28.2 million share float, volume exploded to over 29 million shares traded. A 26.04% morning gap swallowed up the buying pressure before retail chasers even had a chance.
STIM by the numbers
The alert window
There was no sellable move from this signal. The alert went out at 10:01 AM at $3.40, which was the high watermark for the rest of the day. Spending zero minutes above the alert price, the ticker immediately turned over and bled out.
How STIM's move ended
It ended the day at $3.19, down 6.5% from the alert price. Despite narrowing net losses, small-cap med-tech plays with historical cash burn struggle to keep morning gaps intact when early volume dries up.
The tell: If an alert hits on the exact minute of the day's high, the move was already dead on arrival.