Business overview
Petroleum additives (Afton Chemical, Ethyl Corporation) + AMPAC (sole North American producer of ammonium perchlorate) + Calca Solutions (hydrazine).
Watch: Defense exposure is highly diluted: ~5% of total revenue, ~3% of operating profit. The stock primarily moves with the petroleum additives cycle.
Valuation
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Update log
| Date | News | Impact |
|---|---|---|
| 8/22/2026 | Timing score declines following data-driven internal rating downgrade AI review | The timing score decreased significantly due to a deterministic downward revision in the internal rating system, which was triggered by a lack of accessible financial statement data in the latest filings. While the company declared a dividend, the absence of real-time financial reporting forced a reduction in news momentum and catalyst scores, overriding the strategic value of the ammonium perchlorate monopoly. The conviction score remained stable as the fundamental thesis regarding the company's long-term market position is not affected by current reporting delays. |
| 8/13/2026 | Rating revision: Rating 2 → Rating 3 AI review | The rating is downgraded to 4 because the provided financial data for NewMarket Corporation is unavailable, triggering the deterministic gate that prevents a rating higher than 4. While the company maintains a strategic monopoly on ammonium perchlorate, the lack of accessible revenue and net income data mandates a conservative stance despite the dividend announcement. The defense exposure remains too diluted to override the strict financial reporting requirement for higher ratings. |
| 8/13/2026 | EX-99.1 — Other material events · Financial statements and exhibits | |
| 8/13/2026 | NewMarket Corporation Announces Quarterly Dividend Yahoo Finance | Yahoo Finance |
| 8/13/2026 | 8-K — Other material events · Financial statements and exhibits | |
| 7/31/2026 | NewMarket Q2 Earnings Call Highlights Yahoo Finance | Yahoo Finance |
| 7/31/2026 | Yahoo Finance | |
| 7/30/2026 | EX-31.B — Period: 2026-06-30 | |
| 7/30/2026 | EX-31.A — Period: 2026-06-30 | |
| 7/30/2026 | 10-Q — Period: 2026-06-30 | |
| 7/30/2026 | EX-32.B — Period: 2026-06-30 | |
| 7/30/2026 | EX-32.A — Period: 2026-06-30 | |
| 7/29/2026 | 8-K — Results of operations released · Financial statements and exhibits | |
| 7/29/2026 | Yahoo Finance | |
| 7/29/2026 | EX-99.1 — Results of operations released · Financial statements and exhibits | |
| 7/20/2026 | Price ~$643 (data dated January 2026, to be refreshed), 52-week midpoint ($480.57-$875.97). | Neutral - to be updated at the next review cycle |
| 7/19/2026 | $100M investment to increase AMPAC capacity by +50% (Cedar City, Utah), expected completion in 2026. | Concrete catalyst and timeline, but impact remains marginal on the group's total turnover. |
| 7/19/2026 | Specialty materials segment (AMPAC+Calca) 2024: $141.2M in revenue out of $2,786.6M total group (~5.1%), operating profit of $17.5M out of $590M total (~3%). | Confirms the highly diluted nature of the defense thesis - primarily an oil bet with an increasing option on strategic propellants. |
| 7/13/2026 | Yahoo Finance | |
| 7/11/2026 | The July Cup (Gr. I), to be held on July 11, 2026, at Newmarket, is highlighted by the participation of Comanche Brave, illustrating a notable family story. | |
| 7/11/2026 | The horse Al Hudaiba won the Group 2 event at Newmarket, finishing ahead of Abraham Lincoln. | |
| 7/10/2026 | The filly Venetian Sun is announced as the favorite for the July Cup (Gr. I), to be held on July 11, 2026, in Newmarket, despite some uncertainties. | |
| 7/10/2026 | Blue Bolt won the Group 1 race at Newmarket, beating Precise. | |
| 7/10/2026 | The horse Blue Bolt continues its progress at the highest level during the Falmouth Stakes (Gr. I) held in Newmarket on July 10, 2026. | |
| 7/9/2026 | Following its success in a Group 3 race at Newmarket, Point of Law is now heading toward the St Leger. | |
| 7/9/2026 | The edition of the Falmouth Stakes (Group 1) scheduled for this Friday at Newmarket highlights the chances of Precise in this mile-long race. | |
| 7/8/2026 | Yahoo Finance | |
| 7/7/2026 | Trainer Christophe Ferland is scheduling major events with his horses at the Newmarket and Ascot racecourses. | |
| 4/28/2026 | Yahoo Finance | |
| 4/24/2026 | Yahoo Finance | |
| 4/24/2026 | NewMarket Q1 Earnings Call Highlights Yahoo Finance | Yahoo Finance |
| 4/23/2026 | NewMarket Corporation Q1 2026 Earnings Call Summary Yahoo Finance | Yahoo Finance |
| 4/23/2026 | NewMarket (NEU) Q1 2026 Earnings Transcript Yahoo Finance | Yahoo Finance |
| 4/14/2026 | NewMarket (NEU) Q3 2025 Earnings Call Transcript Yahoo Finance | Yahoo Finance |
| 2/24/2026 | Xu Ting (Dir) — Buy +$247,684 Insider Form 4 | P - Purchase transaction of +400 shares at $619.21 |
| 5/12/2025 | Hazelgrove Bruce R III (EVP, CAO) — Sell -$199,796 Insider Form 4 | S - Sale transaction of -311 shares at $642.43 |
| 8/9/2024 | Hazelgrove Bruce R III (EVP, CAO) — Sell -$691,271 Insider Form 4 | S - Sale transaction of -1,270 shares at $544.31 |
| 7/27/2023 | EXHIBIT 10.1 — Period: 2023-06-30 | |
| 2/15/2023 | EXHIBIT 10.16 — Period: 2022-12-31 | |
| 1/19/2011 | FORM 8-K — Entry into a material agreement · Change to security holder rights · Financial statements and exhibits | |
| 3/14/2005 | EXHIBIT 10.4 — Period: 2004-12-31 | |
| 11/5/2004 | SERVICE AGREEMENT - NEWMARKET CORPORATION — Period: 2004-10-30 |