$Regencell Bioscience(RGC.US) dropped -12% in a single day. This small-cap stock, which had previously surged, is right at the deadline for a class-action lawsuit. The legal uncertainty has scared off earlier speculative positions. $Tempus AI(TEM.US) and $Moderna(MRNA.US) both fell six to seven percentage points. AI diagnostics and vaccines each have their own pressures. $Pfizer(PFE.US) was basically flat, and $Recursion Pharmaceuticals(RXRX.US) dipped slightly. Today, in the biopharma sector, large pharma companies, AI drug discovery, and speculative small-caps had three completely different fates 😔. This kind of micro-cap stock, which relies purely on themes, experiences extreme volatility when news reverses. Without fundamental support, it really can't withstand a fall.