Innospec Inc (IOSP) returns
Innospec returns over 10 years
$1,000 invested in Innospec ten years ago was worth $1,915 at the close on October 30, 2026, with dividends reinvested: an average return of 6.7% a year. The same $1,000 in the S&P 500 (SPY) became $4,166.
Total return by period
| Period | Total return | A year, on average | $1,000 became | S&P 500 (SPY) |
|---|---|---|---|---|
| 1 month | +4.8% | — | $1,048 | -0.9% |
| 3 months | +16.1% | — | $1,161 | +2.1% |
| Year to date | +32.1% | — | $1,321 | +11.7% |
| 1 year | +40.0% | — | $1,400 | +12.4% |
| 3 years | +7.9% | +2.6% | $1,079 | +88.5% |
| 5 years | +19.2% | +3.6% | $1,192 | +76.0% |
| 10 years | +91.5% | +6.7% | $1,915 | +316.6% |
Innospec return by calendar year
| Year | IOSP | S&P 500 (SPY) | Difference |
|---|---|---|---|
| 2026 to date | +32.1% | +11.7% | +20.4% |
| 2025 | -28.9% | +17.7% | -46.7% |
| 2024 | -9.6% | +24.9% | -34.4% |
| 2023 | +21.5% | +26.2% | -4.7% |
| 2022 | +15.2% | -18.2% | +33.4% |
| 2021 | +0.8% | +28.7% | -28.0% |
| 2020 | -11.0% | +18.4% | -29.4% |
| 2019 | +69.4% | +31.2% | +38.2% |
| 2018 | -11.5% | -4.6% | -6.9% |
| 2017 | +4.3% | +21.7% | -17.4% |
| 2016 | +27.7% | +12.0% | +15.7% |
Past returns do not predict future returns. Returns are computed from our daily closes, adjusted for splits and with dividends reinvested on their ex-dates; taxes and trading costs are left out.
See also: IOSP financials · IOSP valuation
No forecast, no recommendation. This page describes Innospec Inc from published data; it is not advice to buy, sell or hold any security.
Figures as of the close on Oct 30, 2026 unless a row says otherwise. Prices are split adjusted; returns include dividends reinvested. Data may be delayed. See the disclaimer and how TrendArc works.