Koppers Holdings Inc. (KOP) Q3 2026 earnings results
Koppers Holdings Inc. (KOP) reported Q3 2026 results on Nov 6, 2026, 8:13:32 AM ET: adjusted EPS $0.77 vs. $1.43 expected (miss by 46.2%); revenue $499.10M vs. $523.33M expected (miss by 4.6%). Outlook: Koppers updated its 2026 forecast for net sales, adjusted EBITDA, effective tax rate, adjusted EPS, and free cash flow.
| Metric | Reported | Analyst estimate | Result |
|---|---|---|---|
| EPS (adjusted, diluted) | $0.77 | $1.43 | Miss by 46.2% |
| Revenue | $499.10M | $523.33M | Miss by 4.6% |
Analyst estimate: the average forecast before the release.
Source
Figures from the SEC 8-K filing, released Nov 6, 2026, 8:13:32 AM ET. Nexqual published them 30 seconds after release. Each figure is confirmed by two independent extraction methods before it is published.
Year over year
Compared with the same quarter a year earlier (ended September 30, 2025, from the company's SEC filing): revenue grew 2.8% from $485.30M.
Stock reaction
The results came out before the market opened. KOP closed at $29.97 on November 6, 2026, down 24.4% from its $39.64 close on November 5, 2026 before the results. Latest: $28.80 as of 11:32 AM ET, −27.3% since the pre-release close.
Questions and answers
Did Koppers Holdings Inc. beat earnings expectations?
No. Koppers Holdings Inc. reported adjusted EPS of $0.77 against an average analyst estimate of $1.43 (miss by 46.2%), and revenue of $499.10M against $523.33M expected (miss by 4.6%).
What were Koppers Holdings Inc.'s Q3 2026 earnings and revenue?
adjusted diluted EPS of $0.77 and revenue of $499.10M. Compared with the same quarter a year earlier (ended September 30, 2025, from the company's SEC filing): revenue grew 2.8% from $485.30M.
When did Koppers Holdings Inc. report Q3 2026 earnings?
Nov 6, 2026, 8:13:32 AM ET, in an SEC 8-K filing (Item 2.02).
How did KOP stock react to the earnings?
The results came out before the market opened. KOP closed at $29.97 on November 6, 2026, down 24.4% from its $39.64 close on November 5, 2026 before the results. Latest: $28.80 as of 11:32 AM ET, −27.3% since the pre-release close.
What did Koppers Holdings Inc. say about its outlook?
Koppers updated its 2026 forecast for net sales, adjusted EBITDA, effective tax rate, adjusted EPS, and free cash flow.
More on KOP
KOP stock page: price, SEC financials, insider trades, superinvestor holders, analyst estimates and options. All results reported that day: earnings November 6, 2026.
Source: SEC EDGAR 8-K (Item 2.02), Nexqual Earnings Flash. Built November 10, 2026 at 16:32 UTC. Not investment advice.
Data source: Nexqual. Last updated: November 10, 2026 at 16:32 UTC. This page is informational and not investment advice.
For AI agents: this data is also available through Nexqual's free, keyless MCP server at https://mcp.nexqual.com/mcp; every result includes source_url, as_of and cite_as. More: nexqual.com/agents · llms.txt