IOSP (Innospec Inc.) historical data
STOCKListed1-minute bars
| Symbol | IOSP |
|---|---|
| Name | Innospec Inc. |
| Exchange | NASDAQ |
| Sector | Basic Materials |
| Industry | Chemicals - Specialty |
| IPO date | 1998-05-13 |
| History | 2006-03-23 to 2026-10-09 (about 20 years) |
| Bar sizes | Daily, hourly, 5-minute and 1-minute |
| Adjustments | Unadjusted, split-adjusted or split-and-dividend-adjusted, chosen on read |
| Survivorship | Included in the survivorship-free universe |
| Free tier | Last 12 months of daily bars |
Price history at a glance
IOSP last closed at $95.65 on 2026-10-09, +28.4% over the past year and +21.4% over five years. Its deepest fall from a prior high in this history was -91.2%, reached on 2009-03-09.
| Last close | $95.65 (2026-10-09) |
|---|---|
| 1-year change | +28.4% |
| 5-year change | +21.4% |
| Annualized since 2006-03-23 | +11.5% |
| 52-week range | $65.12 – $98.72 |
| Deepest drawdown | -91.2% (2009-03-09) |
| Avg. daily dollar volume (3 months) | $17.5m |
| Daily bars in history | 5,169 |
Split- and dividend-adjusted closes. Computed by FinzData from its own daily bars.
Institutional ownership (13F, 2026Q2)
| Managers holding | 282 |
|---|---|
| Shares held | 24,868,191 ($2.0bn reported value) |
| Quarter flows | 46 new, 104 added, 96 trimmed, 30 exited; -72,874 shares vs the prior quarter |
From SEC Form 13F filings. Every holder, line by line, and the full history since 2013: yf.Client().holders("IOSP") on the look-back bundles. Top holders of IOSP · All 13F managers
Short interest (2026-09-30)
| Shares short | 492,111 (-3.7% vs prior report) |
|---|---|
| Days to cover | 1.87 |
IOSP short interest history · Basic Materials sector
Get it in Python
import finzdata as yf
df = yf.Ticker("IOSP").history(start="2006-03-23", interval="1d")
df.tail()