Terrestrial Energy (IMSR) Options Chain
NASDAQ: IMSRIndustrialsMetal FabricationsUSD
Market open · Delayed 15 min · as of Oct 9, 9:59 AM ET
Expiration date
- Expiration
- Oct 16, 2026
- Days to expiration
- 7
- Share price
- $3.32
- Put/call ratio (OI)
- 0.40
- Put/call ratio (volume)
- 0.19
- ATM implied volatility
- 204.7%
- Expected move
- ±$0.9397
- Open interest (C / P)
- 2.10K / 844
IMSR options summary
The IMSR options chain for the October 16, 2026 expiration lists 4 call and 3 put contracts, with 7 days until expiration. Open interest stands at 2,102 calls and 844 puts, a put/call ratio of 0.40, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $2.50 strike is 204.7%, which implies the market expects a move of about ±$0.9397 (28.3%) in Terrestrial Energy stock by expiration.
The most open interest sits at the $5.00 call (1.48K contracts) and the $5.00 put (723 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
IMSR options chain · October 16, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 0.96 | 0.60 | 1.35 | 2.50 | 0.00 | 0.05 | 0.01 | |||||
| 0.05 | 0.00 | 0.00 | 5.00 | 1.40 | 1.95 | 1.60 | |||||
| 0.01 | 0.00 | 0.05 | 7.50 | 3.70 | 4.50 | 3.97 | |||||
| 0.03 | 0.00 | 0.00 | 10.00 | — | — | — | |||||
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 IMSR put/call ratio?
For the October 16, 2026 expiration, the IMSR put/call ratio based on open interest is 0.40 (844 puts vs 2,102 calls), and 0.19 based on today's volume. A ratio above 1 means more puts than calls.
What is IMSR's implied volatility?
At-the-money implied volatility for IMSR options expiring October 16, 2026 is about 204.7%, an annualized estimate of how much the market expects Terrestrial Energy stock to move.
How many IMSR option expiration dates are there?
IMSR has 8 listed expiration dates, from Oct 16, 2026 to Jan 19, 2029.
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.