CMS Energy (CMS) Options Chain
NYSE: CMSUtilitiesPower GenerationUSD
At close: Oct 8, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Oct 16, 2026
- Days to expiration
- 7
- Share price
- $65.34
- Put/call ratio (OI)
- 0.49
- Put/call ratio (volume)
- 0.06
- Expected move
- ±$2.15
- Open interest (C / P)
- 640 / 313
CMS options summary
The CMS options chain for the October 16, 2026 expiration lists 6 call and 4 put contracts, with 7 days until expiration. Open interest stands at 640 calls and 313 puts, a put/call ratio of 0.49, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $65.00 strike is 23.8%, which implies the market expects a move of about ±$2.15 (3.3%) in CMS Energy stock by expiration.
The most open interest sits at the $70.00 call (522 contracts) and the $65.00 put (165 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
CMS options chain · October 16, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 8.17 | 9.40 | 10.90 | 55.00 | 0.00 | 0.75 | 0.09 | |||||
| 4.50 | 4.50 | 5.80 | 60.00 | 0.00 | 0.75 | 0.32 | |||||
| 1.00 | 0.90 | 1.15 | 65.00 | 0.40 | 0.70 | 0.75 | |||||
| 0.05 | 0.00 | 0.15 | 70.00 | 4.40 | 5.60 | 5.70 | |||||
| 0.55 | 0.00 | 0.95 | 75.00 | — | — | — | |||||
| 0.09 | 0.00 | 0.15 | 80.00 | — | — | — | |||||
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 CMS put/call ratio?
For the October 16, 2026 expiration, the CMS put/call ratio based on open interest is 0.49 (313 puts vs 640 calls), and 0.06 based on today's volume. A ratio above 1 means more puts than calls.
What is CMS's implied volatility?
At-the-money implied volatility for CMS options expiring October 16, 2026 is about 23.8%, an annualized estimate of how much the market expects CMS Energy stock to move.
How many CMS option expiration dates are there?
CMS 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.