— Why it moved
Why SELX Stock Doubled and Faded Today — June 3, 2026
No news and a pending Nasdaq delisting didn't stop this Taiwan LiDAR name from doubling premarket on 1,300x volume — Stock Pulse flagged it at $0.597 at 7:37 AM, it topped one minute later, and it faded for the rest of the day.
What moved it
Nothing. No filing, no press release, no coverage. The only company news anywhere near this date is a Nasdaq staff determination from mid-May saying the exchange intends to delist the stock. Semilux designs LiDAR optics out of Taiwan, and on this morning it doubled on air.
The mechanics
A 17.4M-share float and a $0.28 stock. Overnight momentum did all the work before most people were awake. Roughly 182M shares traded against a 30-day average of about 135K — over a thousand times normal turnover, on a company valued around $12M.
Numbers
- Cap: ~$12M / float: 17.4M
- Day volume: ~182M (~1,300x avg)
- Prev close: $0.284 → $0.597 at the premarket alert
- 52w range: $0.20–$1.85
Where it ended up
Stock Pulse flagged it at 7:37 AM ET at $0.597, already up 110% from Tuesday's close. The top came one minute later, $0.65 at 7:38 AM. From there it bled for twelve straight hours. Regular hours never saw $0.60 again, and it closed at $0.4641, 22% below the alert.
Reality check
- The peak lasted a minute. Anyone chasing after that was underwater by the bell and stayed there.
- No news, a delisting fight, and a sub-$1 share price. This was momentum feeding on itself.
- This already happened. It's a breakdown of why it ran, not a reason to buy it.