When is Innospec Inc. (IOSP) next ex-dividend date?
Wednesday, November 18, 2026
Predicted next ex-dividend date · high confidence
· ±1 day
(likely Nov 17–Nov 19)
Innospec Inc. pays dividends semi-annually. Based on its historical ex-dividend pattern, the next ex-date is predicted to be November 18, 2026 — you would need to own the shares before this date to be entitled to the dividend. This is a prediction made ahead of the official announcement.
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Upcoming predicted ex-dividend dates
| Predicted ex-date | Confidence | Uncertainty | Likely range |
|---|---|---|---|
| Wed, Nov 18, 2026 | high | ±1d | Nov 17 – Nov 19 |
| Wed, May 19, 2027 | high | ±1d | May 18 – May 20 |
Recent ex-dividend history
| Ex-date | Amount |
|---|---|
| May 19, 2026 | $0.9200 |
| Nov 18, 2025 | $0.8700 |
| May 20, 2025 | $0.8400 |
| Nov 18, 2024 | $0.7900 |
| May 17, 2024 | $0.7600 |
| Nov 17, 2023 | $0.7200 |
| May 19, 2023 | $0.6900 |
| Nov 18, 2022 | $0.6500 |
| May 16, 2022 | $0.6300 |
| Nov 15, 2021 | $0.5900 |
| May 14, 2021 | $0.5700 |
| Nov 16, 2020 | $0.5200 |
Historical amounts are as reported and split-adjusted; shown for pattern context, not as a yield.
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Frequently asked questions
- When is IOSP's next ex-dividend date?
- The predicted next ex-dividend date for Innospec Inc. is November 18, 2026, with high confidence (±1 day). This is an estimate from the historical pattern, not a confirmed date.
- How often does IOSP pay a dividend?
- Innospec Inc. has historically paid semi-annually.
- How is this prediction made?
- By clustering IOSP's past ex-dividend dates and projecting the next occurrence of each annual window, then adjusting to the next US trading session. The confidence reflects how consistent the timing has been.
Not investment advice. Dates shown are statistical predictions
computed from each company's historical ex-dividend pattern before any official
announcement — they are estimates, not confirmed dates, and a company can change or cancel a
dividend at any time. Always verify against the company's official announcement before trading.
Data derived from public sources; last built 2026-07-22.