aTyr Pharma (ATYR) Options Chain
NASDAQ: ATYRHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Jan 21, 2028
- Days to expiration
- 467
- Share price
- $0.2462
- Put/call ratio (OI)
- 0.03
- Put/call ratio (volume)
- 0.07
- ATM implied volatility
- 190.6%
- Expected move
- ±$0.5309
- Open interest (C / P)
- 9.13K / 245
ATYR options summary
The ATYR options chain for the January 21, 2028 expiration lists 9 call and 9 put contracts, with 467 days until expiration. Open interest stands at 9,134 calls and 245 puts, a put/call ratio of 0.03, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $0.50 strike is 190.6%, which implies the market expects a move of about ±$0.5309 (215.6%) in aTyr Pharma stock by expiration.
The most open interest sits at the $0.50 call (2.96K contracts) and the $1.00 put (193 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
ATYR options chain · January 21, 2028
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 0.10 | 0.10 | 0.20 | 0.50 | 0.00 | 1.00 | 0.25 | |||||
| 0.22 | 0.05 | 0.20 | 1.00 | 0.00 | 0.95 | 0.65 | |||||
| 0.12 | 0.05 | 0.25 | 1.50 | 0.65 | 1.60 | 1.05 | |||||
| 0.10 | 0.00 | 1.20 | 2.00 | 0.00 | 5.00 | 1.23 | |||||
| 0.05 | 0.00 | 0.10 | 3.00 | 0.00 | 0.00 | 2.51 | |||||
| 0.10 | 0.00 | 0.10 | 5.00 | 2.00 | 7.00 | 4.56 | |||||
| 0.20 | 0.00 | 1.00 | 7.00 | 6.20 | 7.20 | 6.17 | |||||
| 0.06 | 0.00 | 0.00 | 10.00 | 7.00 | 10.00 | 9.20 | |||||
| 0.06 | 0.00 | 5.00 | 12.00 | 0.00 | 0.00 | 11.40 | |||||
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 ATYR put/call ratio?
For the January 21, 2028 expiration, the ATYR put/call ratio based on open interest is 0.03 (245 puts vs 9,134 calls), and 0.07 based on today's volume. A ratio above 1 means more puts than calls.
What is ATYR's implied volatility?
At-the-money implied volatility for ATYR options expiring January 21, 2028 is about 190.6%, an annualized estimate of how much the market expects aTyr Pharma stock to move.
How many ATYR option expiration dates are there?
ATYR has 6 listed expiration dates, from Oct 16, 2026 to Jan 21, 2028.
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.