MSA Safety (MSA) Options Chain
NYSE: MSAHealth CareIndustrial SpecialtiesUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Dec 18, 2026
- Days to expiration
- 68
- Share price
- $180.71
- Put/call ratio (OI)
- 0.95
- Put/call ratio (volume)
- 0.82
- Expected move
- ±$64.19
- Open interest (C / P)
- 56 / 53
MSA options summary
The MSA options chain for the December 18, 2026 expiration lists 8 call and 12 put contracts, with 68 days until expiration. Open interest stands at 56 calls and 53 puts, a put/call ratio of 0.95, which is fairly balanced between calls and puts. At-the-money implied volatility near the $180.00 strike is 82.3%, which implies the market expects a move of about ±$64.19 (35.5%) in MSA Safety stock by expiration.
The most open interest sits at the $190.00 call (25 contracts) and the $110.00 put (18 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
MSA options chain · December 18, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 110.00 | 0.00 | 4.80 | 0.95 | |||||
| — | — | — | 115.00 | 0.00 | 0.00 | 1.40 | |||||
| — | — | — | 120.00 | 0.00 | 4.80 | 0.90 | |||||
| — | — | — | 125.00 | 0.00 | 4.80 | 1.20 | |||||
| — | — | — | 130.00 | 0.00 | 4.80 | 1.55 | |||||
| 53.50 | 53.50 | 57.00 | 135.00 | — | — | — | |||||
| — | — | — | 145.00 | 0.55 | 5.40 | 5.50 | |||||
| — | — | — | 150.00 | 0.00 | 4.90 | 1.15 | |||||
| — | — | — | 155.00 | 0.00 | 4.90 | 1.65 | |||||
| — | — | — | 160.00 | 5.20 | 9.90 | 13.46 | |||||
| 12.72 | 16.00 | 20.80 | 165.00 | 0.30 | 4.90 | 2.50 | |||||
| — | — | — | 175.00 | 3.30 | 7.00 | 4.20 | |||||
| — | — | — | 180.00 | 23.00 | 27.50 | 17.50 | |||||
| 14.30 | 9.80 | 14.30 | 185.00 | — | — | — | |||||
| 8.50 | 7.00 | 11.70 | 190.00 | — | — | — | |||||
| 4.00 | 5.50 | 10.30 | 195.00 | — | — | — | |||||
| 4.50 | 3.00 | 7.40 | 200.00 | — | — | — | |||||
| 1.75 | 1.30 | 6.00 | 210.00 | — | — | — | |||||
| 1.15 | 0.05 | 4.90 | 220.00 | — | — | — | |||||
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 MSA put/call ratio?
For the December 18, 2026 expiration, the MSA put/call ratio based on open interest is 0.95 (53 puts vs 56 calls), and 0.82 based on today's volume. A ratio above 1 means more puts than calls.
What is MSA's implied volatility?
At-the-money implied volatility for MSA options expiring December 18, 2026 is about 82.3%, an annualized estimate of how much the market expects MSA Safety stock to move.
How many MSA option expiration dates are there?
MSA has 3 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.