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KOP's price falls by 1.63% on August 21, though its technical setup remains stable.

SwingTradeBot Nightly Stock Scan: Koppers Holdings Inc. (KOP) — Technical Patterns & Alerts · Aug 21, 2026, 17:51 ET
On Friday, August 21st, KOP moved down 1.63% while volume shrunk to 0.1× the usual levels. Key support levels exist at 44.25, 43.36 & 42.58, with resistance at 45.91, 46.69 & 47.58. Meanwhile, Slow Stochastic is showing oversold conditions.

Current SwingTradeBot Technical Rating of KOP: C

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Koppers Holdings Inc. (KOP)