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Lower Bollinger Band Walk appears for ALGN after 2.27% move

SwingTradeBot Nightly Stock Scan: Align Technology, Inc. (ALGN) — Technical Patterns & Alerts · Aug 21, 2026, 17:43 ET
ALGN closed up 2.27% on Friday, August 21st, with volume running 0.9× below average. Lower Bollinger Band Walk — typically a warning sign for traders — developed during the session. Key support levels exist at 159.03, 155.52 & 153.65, with resistance at 164.42, 166.29 & 169.8. Meanwhile, Slow Stochastic is showing oversold conditions.

Current SwingTradeBot Technical Rating of ALGN: D

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Align Technology, Inc. (ALGN)