Research Frontiers Incorporated REFR
0.35 USD -0.01 (-2.89%)
At closeNov 3, 2026, 4:00 PM EST
0.36 +0.01 +1.57%
After hours · Nov 3, 4:00 PM ET
0.3252 Day range 0.3885
0.3252 52-week range 2.10
- YTD
- -73.31%
- 1 year
- -81.40%
REFR options
| Calls | Strike | Puts | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bid | Ask | Last | % Chg | Volume | Open int | Impl vol | Bid | Ask | Last | % Chg | Volume | Open int | Impl vol | |||
| 0.00 | 0.00 | 0.10 | 0.00% | 40 | 0 | 50.0% | 0.50 | — | — | — | — | — | — | — | ||
| — | — | — | — | — | — | — | 1.00 | 0.00 | 0.00 | 0.70 | 0.00% | 3 | 0 | 0.0% | ||
| — | — | — | — | — | — | — | 1.50 | 0.00 | 0.00 | 0.99 | 0.00% | 1 | 0 | 0.0% | ||
| 0.00 | 0.00 | 0.04 | 0.00% | 10 | 0 | 50.0% | 2.50 | 0.00 | 0.00 | 2.20 | 0.00% | 1 | 0 | 0.0% | ||
| — | — | — | — | — | — | — | 5.00 | 0.00 | 0.00 | 4.70 | 0.00% | 2 | 0 | 0.0% | ||