REGENXBIO (RGNX) Options Chain
NASDAQ: RGNXHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Nov 20, 2026
- Days to expiration
- 40
- Share price
- $8.07
- Put/call ratio (OI)
- 0.09
- Put/call ratio (volume)
- 0.01
- ATM implied volatility
- 235.3%
- Expected move
- ±$6.29
- Open interest (C / P)
- 490 / 44
RGNX options summary
The RGNX options chain for the November 20, 2026 expiration lists 3 call and 2 put contracts, with 40 days until expiration. Open interest stands at 490 calls and 44 puts, a put/call ratio of 0.09, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $8.00 strike is 235.3%, which implies the market expects a move of about ±$6.29 (77.9%) in REGENXBIO stock by expiration.
The most open interest sits at the $9.00 call (439 contracts) and the $7.00 put (40 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
RGNX options chain · November 20, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 6.00 | 0.10 | 5.00 | 0.60 | |||||
| 1.25 | 0.20 | 4.90 | 7.00 | 0.35 | 1.20 | 0.97 | |||||
| 1.31 | 0.10 | 4.90 | 8.00 | — | — | — | |||||
| 1.10 | 0.00 | 1.40 | 9.00 | — | — | — | |||||
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 RGNX put/call ratio?
For the November 20, 2026 expiration, the RGNX put/call ratio based on open interest is 0.09 (44 puts vs 490 calls), and 0.01 based on today's volume. A ratio above 1 means more puts than calls.
What is RGNX's implied volatility?
At-the-money implied volatility for RGNX options expiring November 20, 2026 is about 235.3%, an annualized estimate of how much the market expects REGENXBIO stock to move.
How many RGNX option expiration dates are there?
RGNX has 4 listed expiration dates, from Oct 16, 2026 to Apr 16, 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.