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Is SION about to break its pattern? Narrow Range Bar shows up after sliding 4.17%

Sionna Therapeutics, Inc. (SION) Technical Analysis, Stock Scans & Trading Signals · Aug 21, 2026, 20:00 ET
On Friday, August 21st, SION moved down 4.17% while volume was to 0.9× the usual levels. The session formed a Narrow Range Bar, often signaling a possible continuation. Key support levels exist at 5.13, 4.98 & 4.68, with resistance at 5.58, 5.88 & 6.03. Meanwhile, Slow Stochastic is showing oversold conditions.

Current SwingTradeBot Technical Rating of SION: F

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