Research Frontiers (REFR) Options Chain
NASDAQ: REFRMiscellaneousMulti-Sector CompaniesUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Nov 20, 2026
- Days to expiration
- 40
- Share price
- $0.5933
- Put/call ratio (OI)
- 0.01
- Put/call ratio (volume)
- 0.30
- ATM implied volatility
- 535.9%
- Expected move
- ±$1.05
- Open interest (C / P)
- 529 / 3
REFR options summary
The REFR options chain for the November 20, 2026 expiration lists 1 call and 3 put contracts, with 40 days until expiration. Open interest stands at 529 calls and 3 puts, a put/call ratio of 0.01, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $2.50 strike is 535.9%, which implies the market expects a move of about ±$1.05 (177.4%) in Research Frontiers stock by expiration.
The most open interest sits at the $2.50 call (529 contracts) and the $2.50 put (1 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
REFR options chain · November 20, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 0.04 | 0.00 | 0.05 | 2.50 | 1.35 | 2.30 | 2.05 | |||||
| — | — | — | 5.00 | 3.90 | 4.90 | 4.50 | |||||
| — | — | — | 7.50 | 6.40 | 7.40 | 7.00 | |||||
In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.
Frequently asked questions
What is the REFR put/call ratio?
For the November 20, 2026 expiration, the REFR put/call ratio based on open interest is 0.01 (3 puts vs 529 calls), and 0.30 based on today's volume. A ratio above 1 means more puts than calls.
What is REFR's implied volatility?
At-the-money implied volatility for REFR options expiring November 20, 2026 is about 535.9%, an annualized estimate of how much the market expects Research Frontiers stock to move.
How many REFR option expiration dates are there?
REFR has 4 listed expiration dates, from Oct 16, 2026 to Mar 19, 2027.
What does "in the money" mean?
A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.