Entera Bio (ENTX) Options Chain
NASDAQ: ENTXHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- May 21, 2027
- Days to expiration
- 223
- Share price
- $2.66
- Put/call ratio (OI)
- 3.68
- Expected move
- ±$1.75
- Open interest (C / P)
- 47 / 173
ENTX options summary
The ENTX options chain for the May 21, 2027 expiration lists 3 call and 1 put contracts, with 223 days until expiration. Open interest stands at 47 calls and 173 puts, a put/call ratio of 3.68, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $3.00 strike is 84.4%, which implies the market expects a move of about ±$1.75 (66.0%) in Entera Bio stock by expiration.
The most open interest sits at the $3.00 call (45 contracts) and the $5.00 put (173 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
ENTX options chain · May 21, 2027
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 2.59 | 0.00 | 5.00 | 1.00 | — | — | — | |||||
| 1.18 | 0.00 | 1.15 | 3.00 | — | — | — | |||||
| — | — | — | 5.00 | 0.50 | 5.20 | 2.80 | |||||
| 1.81 | 0.00 | 4.00 | 6.00 | — | — | — | |||||
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 ENTX put/call ratio?
For the May 21, 2027 expiration, the ENTX put/call ratio based on open interest is 3.68 (173 puts vs 47 calls). A ratio above 1 means more puts than calls.
What is ENTX's implied volatility?
At-the-money implied volatility for ENTX options expiring May 21, 2027 is about 84.4%, an annualized estimate of how much the market expects Entera Bio stock to move.
How many ENTX option expiration dates are there?
ENTX has 4 listed expiration dates, from Oct 16, 2026 to May 21, 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.