REFR (Research Frontiers Incorporated) historical data
STOCKListed1-minute bars
| Symbol | REFR |
|---|---|
| Name | Research Frontiers Incorporated |
| Exchange | NASDAQ |
| Sector | Technology |
| Industry | Hardware Equipment & Parts |
| IPO date | 1986-07-08 |
| History | 2000-01-04 to 2026-10-09 (about 26 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
REFR last closed at $0.59 on 2026-10-09, -68.6% over the past year and -75.4% over five years. Its deepest fall from a prior high in this history was -99.1%, reached on 2026-09-15.
| Last close | $0.59 (2026-10-09) |
|---|---|
| 1-year change | -68.6% |
| 5-year change | -75.4% |
| Annualized since 2000-01-04 | -11.5% |
| 52-week range | $0.36 – $2.36 |
| Deepest drawdown | -99.1% (2026-09-15) |
| Avg. daily dollar volume (3 months) | $1.1m |
| Daily bars in history | 6,730 |
Split- and dividend-adjusted closes. Computed by FinzData from its own daily bars.
Get it in Python
import finzdata as yf
df = yf.Ticker("REFR").history(start="2000-01-04", interval="1d")
df.tail()