Korro Bio (KRRO) Options Chain
NASDAQ: KRROHealth CareBiotechnology: Pharmaceutical PreparationsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Jan 15, 2027
- Days to expiration
- 96
- Share price
- $10.16
- Put/call ratio (OI)
- 0.04
- Put/call ratio (volume)
- 0.00
- ATM implied volatility
- 141.8%
- Expected move
- ±$7.39
- Open interest (C / P)
- 26 / 1
KRRO options summary
The KRRO options chain for the January 15, 2027 expiration lists 4 call and 2 put contracts, with 96 days until expiration. Open interest stands at 26 calls and 1 puts, a put/call ratio of 0.04, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $10.00 strike is 141.8%, which implies the market expects a move of about ±$7.39 (72.7%) in Korro Bio stock by expiration.
The most open interest sits at the $10.00 call (18 contracts) and the $10.00 put (1 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
KRRO options chain · January 15, 2027
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 3.63 | 0.00 | 0.00 | 7.50 | — | — | — | |||||
| 2.43 | 1.00 | 5.50 | 10.00 | 0.10 | 4.90 | 1.39 | |||||
| 4.50 | 1.00 | 5.00 | 12.50 | 0.00 | 0.00 | 2.60 | |||||
| 2.61 | 0.00 | 4.90 | 15.00 | — | — | — | |||||
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 KRRO put/call ratio?
For the January 15, 2027 expiration, the KRRO put/call ratio based on open interest is 0.04 (1 puts vs 26 calls), and 0.00 based on today's volume. A ratio above 1 means more puts than calls.
What is KRRO's implied volatility?
At-the-money implied volatility for KRRO options expiring January 15, 2027 is about 141.8%, an annualized estimate of how much the market expects Korro Bio stock to move.
How many KRRO option expiration dates are there?
KRRO 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.