Sionna Therapeutics Inc

SION has formed a Blow-Off Top and retraced sharply below the 9 and 20 EMAs, testing multi-EMA support and signaling a likely pullback. Medium-term bias is bearish given the unsustainable buying pressure and failed follow-through, while short-term rejection at key EMAs favors immediate execution. The long-term uptrend remains intact above the rising 200 DMA but is currently overshadowed by distribution dynamics.

• ↑Maintains ~$211M cash and short-term investments funding ops until 2028
• ↑Intraday stock bounce peaked at +14.9%, reflecting speculative momentum
• ↓Phase 2a failure of SION-719 undermines core product revenue potential