— Why it moved
Why CUPR Stock Tripled Then Halved Today — June 12, 2026
Cuprina's first Stock Pulse fire: a reverse-split microcap regained Nasdaq compliance and tripled on a 921K float — three days before the MEDIFLY FDA news that made the ticker famous.
What moved CUPR stock
Cuprina Holdings is the reverse-split microcap behind MEDIFLY, a maggot-based wound debridement product. The news on the day was housekeeping: a 6-K saying it regained Nasdaq minimum-bid compliance after its 1-for-8 reverse split, cancelling a July delisting hearing, and the tape treated it as a green light anyway. The bigger headline — FDA 510(k) clearance for MEDIFLY — didn't drop until the following Monday, so the June 12 move ran ahead of anything fundamental.
The mechanics
A 921K-share float on a $6.5M cap, freshly compressed by the reverse split. It gapped 93% and traded 83M shares, turning the float over about ninety times — that structure is how $2.41 becomes $8.23 in a morning.
CUPR by the numbers
The alert window
Stock Pulse alerted premarket at 9:15 AM at $4.61; the peak $8.23 printed at 9:56 AM — 41 minutes of window, worth 78.3% at the top.
How CUPR's move ended
Then the unwind: it gave back the entire post-alert move and closed at $3.97, 14% below the alert while still up 65% on the day. Compliance-regained is not a business event, and the FDA clearance that would have justified real interest wasn't public yet on June 12. The ticker fired again on June 24, and that re-run topped in a minute — broken down separately.
The tell: a sub-1M float running on housekeeping news hands the entire post-alert move back the same session; the 41-minute sprint was the whole trade.