Mesoblast (MESO) Options Chain
NASDAQ: MESOHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Nov 20, 2026
- Days to expiration
- 40
- Share price
- $14.29
- Put/call ratio (OI)
- 1.79
- Put/call ratio (volume)
- 0.09
- Expected move
- ±$3.87
- Open interest (C / P)
- 80 / 143
MESO options summary
The MESO options chain for the November 20, 2026 expiration lists 3 call and 5 put contracts, with 40 days until expiration. Open interest stands at 80 calls and 143 puts, a put/call ratio of 1.79, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $14.00 strike is 81.7%, which implies the market expects a move of about ±$3.87 (27.1%) in Mesoblast stock by expiration.
The most open interest sits at the $20.00 call (55 contracts) and the $15.00 put (123 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
MESO options chain · November 20, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 14.00 | 0.00 | 1.40 | 1.20 | |||||
| — | — | — | 15.00 | 0.10 | 1.80 | 1.60 | |||||
| 0.55 | 0.00 | 0.70 | 16.00 | 0.50 | 5.00 | 2.65 | |||||
| 0.75 | 0.00 | 3.00 | 17.00 | 1.00 | 5.50 | 2.75 | |||||
| — | — | — | 18.00 | 2.00 | 6.40 | 3.70 | |||||
| 0.20 | 0.00 | 5.00 | 20.00 | — | — | — | |||||
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 MESO put/call ratio?
For the November 20, 2026 expiration, the MESO put/call ratio based on open interest is 1.79 (143 puts vs 80 calls), and 0.09 based on today's volume. A ratio above 1 means more puts than calls.
What is MESO's implied volatility?
At-the-money implied volatility for MESO options expiring November 20, 2026 is about 81.7%, an annualized estimate of how much the market expects Mesoblast stock to move.
How many MESO option expiration dates are there?
MESO has 5 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.