Starling Oncology (STLN) Options Chain
NASDAQ: STLNHealth CareMedical/Nursing ServicesUSD
At close: Oct 8, 4:00 PM ET · Delayed 15 min
After hours: 6.21 +0.49%
Expiration date
- Expiration
- Oct 16, 2026
- Days to expiration
- 8
- Share price
- $6.18
- Put/call ratio (OI)
- 0.16
- Put/call ratio (volume)
- 0.04
- ATM implied volatility
- 148.1%
- Expected move
- ±$1.35
- Open interest (C / P)
- 324 / 52
STLN options summary
The STLN options chain for the October 16, 2026 expiration lists 2 call and 1 put contracts, with 8 days until expiration. Open interest stands at 324 calls and 52 puts, a put/call ratio of 0.16, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $5.00 strike is 148.1%, which implies the market expects a move of about ±$1.35 (21.9%) in Starling Oncology stock by expiration.
The most open interest sits at the $7.50 call (205 contracts) and the $5.00 put (52 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
STLN options chain · October 16, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 1.55 | 1.05 | 1.85 | 5.00 | 0.00 | 0.05 | 0.02 | |||||
| 0.03 | 0.00 | 0.10 | 7.50 | — | — | — | |||||
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 STLN put/call ratio?
For the October 16, 2026 expiration, the STLN put/call ratio based on open interest is 0.16 (52 puts vs 324 calls), and 0.04 based on today's volume. A ratio above 1 means more puts than calls.
What is STLN's implied volatility?
At-the-money implied volatility for STLN options expiring October 16, 2026 is about 148.1%, an annualized estimate of how much the market expects Starling Oncology stock to move.
How many STLN option expiration dates are there?
STLN 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.