Market Performance Overview

On Friday 23 November 2026, Koppers Holdings, Inc. (KOP) experienced a modest decline of 1.43 % during the 24‑hour trading window that closed at 11:20 AM Central European Time. The stock was last quoted at approximately USD 40.75 on major exchanges, a level slightly below its 200‑day simple moving average of USD 41.17.

With a market capitalization of USD 781.8 million and an outstanding supply of 19.2 million shares, Koppers attracted roughly USD 7.1 million in trading volume during the preceding day. Over the longer term, the share price has fallen 11.91 % since the close of the previous month, underscoring a sustained downward trend. The most recent high, recorded on 6 August 2026, reached USD 53, while the low of the past 52 weeks was USD 25 on 7 November 2025.

Comparative Performance of Peer Stocks

  • O‑i Glass (OI): Up 2.2 % at USD 6.41, market cap USD 928.1 million. The company highlighted progress in its 2026 sustainability report, noting a significant reduction in greenhouse‑gas emissions (≈ 133,000 metric tons) and a rise in recycled glass content to 42 %. O‑I also expanded its closed‑loop recycling programs, supporting 40 global initiatives and 47 U.S. community collection sites.
  • Resolute Management (RHLD): Up 2.82 % at USD 118.81, market cap USD 929 million, P/E ratio 21.17.
  • Hanmi (HAFC): Up 2.35 % at USD 32.24, market cap USD 934 million, P/E ratio 10.63.
  • Douglas Dynamics (PLOW): Down 1.06 % at USD 39.97, market cap USD 932.3 million, P/E ratio 18.33.
  • Ridgepost Capital (RPC): Down 0.94 % at USD 8.86, market cap USD 933.7 million, P/E ratio 36.42.

Corporate Snapshot

Koppers Holdings, Inc. is headquartered in Pittsburgh, Pennsylvania, and specializes in the manufacture of carbon compounds and wood treatments. The company distills coal tar into carbon pitch, creosote, and phthalic anhydride, key raw materials for aluminum production, plasticizers, and specialty chemicals. In addition, Koppers produces railroad ties, contributing to infrastructure maintenance and development.

Founded in the early 2000s, Koppers went public on 1 February 2006 and is listed on the New York Stock Exchange. For more detailed information on its operations, products, and corporate governance, interested parties may consult the company’s website at www.koppers.com .