INNOSPEC INC. (IOSP)
INNOSPEC INC. (IOSP) has a 87-report earnings history dating back to Oct 26, 2004. Its average absolute post-earnings move is ±4.68%, and 62.1% of those reactions were positive. Its largest post-earnings gain was +14.18% (Feb 08, 2008) and its largest decline was -24.48% (Jul 31, 2008). The next earnings report is predicted for 2026-11-06 (estimated).
Earnings reactions
How IOSP moved on each past earnings report.
Earnings Impact
Total Earnings
87
Avg Abs. Movement
±4.68%
Positive %
62.1%
Negative %
37.9%
Historical Earnings Statistics
| Date | Timing | Earnings move | SEC Filing |
|---|---|---|---|
| Aug 05, 2026 | ☀ PRE | +5.86% | open_in_new |
| May 08, 2026 | ☀ PRE | +4.69% | open_in_new |
| Feb 18, 2026 | ☀ PRE | +0.26% | open_in_new |
| Nov 05, 2025 | ☀ PRE | +2.42% | open_in_new |
Earnings Count
87
Total earnings in dataset
Avg Abs. Movement
±4.68%
Avg % price change on earnings
Institutional ownership
Holdings as of Jun 30, 2026 · SEC 13-F
SEC Filing Types
Recent SEC Filings
10 most recent| Form | Date Filed | View on EDGAR |
|---|---|---|
| 10-Q | 20260805 | open_in_new SEC.gov |
| 8-K | 20260805 | open_in_new SEC.gov |
| SCHEDULE 13G/A | 20260731 | open_in_new SEC.gov |
| SCHEDULE 13G | 20260714 | open_in_new SEC.gov |
| 3 | 20260701 | open_in_new SEC.gov |
| 8-K | 20260604 | open_in_new SEC.gov |
| SD | 20260529 | open_in_new SEC.gov |
| 8-K | 20260513 | open_in_new SEC.gov |
| 10-Q | 20260508 | open_in_new SEC.gov |
| 8-K | 20260508 | open_in_new SEC.gov |
Frequently asked about IOSP earnings
When does INNOSPEC INC. report earnings next? expand_more
INNOSPEC INC. (IOSP)'s next earnings date is estimated for 2026-11-06. This is a prediction based on its historical quarterly reporting pattern, not a company-confirmed date.
How much does IOSP stock move after earnings? expand_more
Over 87 reports, IOSP has moved an average of ±4.68% the session after earnings, closing higher 62.1% of the time.
What was IOSP's biggest post-earnings move? expand_more
IOSP's largest post-earnings gain on record was +14.18% on Feb 08, 2008, and its largest decline was -24.48% on Jul 31, 2008.
Where can I find INNOSPEC INC.'s SEC filings? expand_more
All of INNOSPEC INC.'s SEC filings — 10-K, 10-Q, 8-K and more — are listed in the SEC filings section on this page, each linking to the original document on SEC.gov.
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