Terrestrial Energy (IMSR) Options Chain
NASDAQ: IMSRIndustrialsMetal FabricationsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Dec 18, 2026
- Days to expiration
- 68
- Share price
- $3.28
- Put/call ratio (OI)
- 0.29
- Put/call ratio (volume)
- 1.54
- Expected move
- ±$1.32
- Open interest (C / P)
- 5.95K / 1.73K
IMSR options summary
The IMSR options chain for the December 18, 2026 expiration lists 10 call and 10 put contracts, with 68 days until expiration. Open interest stands at 5,954 calls and 1,730 puts, a put/call ratio of 0.29, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $2.50 strike is 93.0%, which implies the market expects a move of about ±$1.32 (40.1%) in Terrestrial Energy stock by expiration.
The most open interest sits at the $10.00 call (2.21K contracts) and the $5.00 put (1.06K contracts).
Summary generated from market data by MetaCap's automated system. Methodology
IMSR options chain · December 18, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 1.00 | 0.75 | 1.10 | 2.50 | 0.15 | 0.25 | 0.20 | |||||
| 0.16 | 0.15 | 0.35 | 5.00 | 1.65 | 2.00 | 1.80 | |||||
| 0.10 | 0.00 | 0.15 | 7.50 | 3.90 | 4.40 | 3.85 | |||||
| 0.05 | 0.00 | 0.25 | 10.00 | 6.30 | 7.20 | 4.88 | |||||
| 0.09 | 0.00 | 0.25 | 12.50 | 0.00 | 0.00 | 7.05 | |||||
| 0.03 | 0.00 | 0.25 | 15.00 | 9.40 | 10.40 | 10.09 | |||||
| 0.11 | 0.00 | 0.25 | 17.50 | 0.00 | 0.00 | 11.25 | |||||
| 0.04 | 0.00 | 0.25 | 20.00 | 0.00 | 0.00 | 13.63 | |||||
| 0.11 | 0.00 | 0.35 | 22.50 | 0.00 | 0.00 | 16.03 | |||||
| 0.10 | 0.00 | 0.25 | 25.00 | 17.00 | 19.00 | 17.45 | |||||
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 December 18, 2026 expiration, the IMSR put/call ratio based on open interest is 0.29 (1,730 puts vs 5,954 calls), and 1.54 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 December 18, 2026 is about 93.0%, 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.