Eton Pharmaceuticals (ETON) Options Chain
NASDAQ: ETONHealth CareBiotechnology: Pharmaceutical PreparationsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- May 21, 2027
- Days to expiration
- 223
- Share price
- $55.21
- Put/call ratio (OI)
- 2.41
- Put/call ratio (volume)
- 28.75
- Expected move
- ±$29.55
- Open interest (C / P)
- 74 / 178
ETON options summary
The ETON options chain for the May 21, 2027 expiration lists 10 call and 5 put contracts, with 223 days until expiration. Open interest stands at 74 calls and 178 puts, a put/call ratio of 2.41, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $55.00 strike is 68.5%, which implies the market expects a move of about ±$29.55 (53.5%) in Eton Pharmaceuticals stock by expiration.
The most open interest sits at the $55.00 call (27 contracts) and the $55.00 put (172 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
ETON options chain · May 21, 2027
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 26.00 | 25.00 | 29.00 | 30.00 | — | — | — | |||||
| 23.61 | 21.10 | 25.20 | 35.00 | — | — | — | |||||
| 22.00 | 18.00 | 21.90 | 40.00 | — | — | — | |||||
| 18.80 | 14.90 | 19.10 | 45.00 | 3.50 | 7.70 | 7.70 | |||||
| 14.68 | 12.50 | 16.70 | 50.00 | 6.10 | 10.10 | 9.76 | |||||
| 11.95 | 10.70 | 14.30 | 55.00 | 8.80 | 12.80 | 13.18 | |||||
| 10.00 | 8.60 | 12.50 | 60.00 | 11.70 | 15.90 | 15.85 | |||||
| 6.60 | 6.90 | 10.80 | 65.00 | 15.10 | 19.00 | 19.55 | |||||
| 5.70 | 3.80 | 7.50 | 75.00 | — | — | — | |||||
| 3.60 | — | — | 85.00 | — | — | — | |||||
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 ETON put/call ratio?
For the May 21, 2027 expiration, the ETON put/call ratio based on open interest is 2.41 (178 puts vs 74 calls), and 28.75 based on today's volume. A ratio above 1 means more puts than calls.
What is ETON's implied volatility?
At-the-money implied volatility for ETON options expiring May 21, 2027 is about 68.5%, an annualized estimate of how much the market expects Eton Pharmaceuticals stock to move.
How many ETON option expiration dates are there?
ETON 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.