Enanta Pharmaceuticals (ENTA) Options Chain
NASDAQ: ENTAHealth CareBiotechnology: Pharmaceutical PreparationsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Apr 16, 2027
- Days to expiration
- 187
- Share price
- $12.50
- Put/call ratio (OI)
- 0.36
- Put/call ratio (volume)
- 2.26
- Expected move
- ±$7.03
- Open interest (C / P)
- 53 / 19
ENTA options summary
The ENTA options chain for the April 16, 2027 expiration lists 6 call and 2 put contracts, with 187 days until expiration. Open interest stands at 53 calls and 19 puts, a put/call ratio of 0.36, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $12.50 strike is 78.6%, which implies the market expects a move of about ±$7.03 (56.2%) in Enanta Pharmaceuticals stock by expiration.
The most open interest sits at the $20.00 call (43 contracts) and the $12.50 put (19 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
ENTA options chain · April 16, 2027
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 3.50 | 3.10 | 5.70 | 10.00 | 0.00 | 0.00 | 1.10 | |||||
| — | — | — | 12.50 | 0.75 | 4.80 | 2.62 | |||||
| 2.50 | 0.00 | 0.00 | 15.00 | — | — | — | |||||
| 1.80 | 0.00 | 0.00 | 17.50 | — | — | — | |||||
| 0.90 | 0.00 | 2.75 | 20.00 | — | — | — | |||||
| 1.00 | 0.00 | 0.00 | 22.50 | — | — | — | |||||
| 0.85 | 0.00 | 2.40 | 25.00 | — | — | — | |||||
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 ENTA put/call ratio?
For the April 16, 2027 expiration, the ENTA put/call ratio based on open interest is 0.36 (19 puts vs 53 calls), and 2.26 based on today's volume. A ratio above 1 means more puts than calls.
What is ENTA's implied volatility?
At-the-money implied volatility for ENTA options expiring April 16, 2027 is about 78.6%, an annualized estimate of how much the market expects Enanta Pharmaceuticals stock to move.
How many ENTA option expiration dates are there?
ENTA 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.