STERIS (Ireland) (STE) Options Chain
NYSE: STEHealth CareIndustrial SpecialtiesUSD
Market open · Delayed 15 min · as of Oct 9, 9:49 AM ET
Expiration date
- Expiration
- Oct 16, 2026
- Days to expiration
- 7
- Share price
- $211.84
- Put/call ratio (OI)
- 1.01
- Put/call ratio (volume)
- 0.28
- Expected move
- ±$10.81
- Open interest (C / P)
- 507 / 511
STE options summary
The STE options chain for the October 16, 2026 expiration lists 6 call and 6 put contracts, with 7 days until expiration. Open interest stands at 507 calls and 511 puts, a put/call ratio of 1.01, which is fairly balanced between calls and puts. At-the-money implied volatility near the $210.00 strike is 36.9%, which implies the market expects a move of about ±$10.81 (5.1%) in STERIS (Ireland) stock by expiration.
The most open interest sits at the $230.00 call (325 contracts) and the $210.00 put (502 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
STE options chain · October 16, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 185.00 | 0.00 | 1.75 | 0.50 | |||||
| — | — | — | 195.00 | 0.00 | 0.75 | 1.70 | |||||
| 10.71 | 9.30 | 12.70 | 200.00 | 0.00 | 1.90 | 0.50 | |||||
| 3.00 | 1.50 | 5.10 | 210.00 | 1.20 | 4.20 | 3.70 | |||||
| 1.10 | 0.00 | 1.05 | 220.00 | 7.70 | 11.70 | 15.40 | |||||
| 0.05 | 0.00 | 0.00 | 230.00 | 17.90 | 21.00 | 26.77 | |||||
| 0.88 | 0.00 | 0.75 | 240.00 | — | — | — | |||||
| 2.35 | 0.00 | 1.75 | 250.00 | — | — | — | |||||
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 STE put/call ratio?
For the October 16, 2026 expiration, the STE put/call ratio based on open interest is 1.01 (511 puts vs 507 calls), and 0.28 based on today's volume. A ratio above 1 means more puts than calls.
What is STE's implied volatility?
At-the-money implied volatility for STE options expiring October 16, 2026 is about 36.9%, an annualized estimate of how much the market expects STERIS (Ireland) stock to move.
How many STE option expiration dates are there?
STE has 4 listed expiration dates, from Oct 16, 2026 to Mar 19, 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.