Constellation Energy (CEG) Options Chain

NASDAQ: CEGUtilitiesElectric Utilities: CentralUSD

298.07+13.00 (+4.56%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Expiration date

Expiration: May 21, 2027
Days to expiration: 223
Share price: $298.07
Put/call ratio (OI): 6.72
Put/call ratio (volume): 0.95
ATM implied volatility: 51.9%
Expected move: ±$120.87
Open interest (C / P): 116 / 780

CEG options summary

The CEG options chain for the May 21, 2027 expiration lists 13 call and 17 put contracts, with 223 days until expiration. Open interest stands at 116 calls and 780 puts, a put/call ratio of 6.72, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $300.00 strike is 51.9%, which implies the market expects a move of about ±$120.87 (40.6%) in Constellation Energy stock by expiration.

The most open interest sits at the $350.00 call (35 contracts) and the $280.00 put (426 contracts).

Summary generated from market data by MetaCap's automated system. Methodology

CEG options chain · May 21, 2027

CEG calls and puts by strike price. Shaded cells are in the money.
Calls							Puts
OI	Vol	IV	Last	Bid	Ask	Strike	Bid	Ask	Last	IV	Vol	OI
—	—	—	—	—	—	135.00	0.00	1.80	0.90	53.1%	1	21
—	—	—	—	—	—	140.00	0.25	1.20	1.08	53.6%	4	23
—	—	—	—	—	—	150.00	0.85	2.40	2.55	52.1%	—	1
—	—	—	—	—	—	160.00	0.30	2.80	3.24	53.8%	1	2
—	—	—	—	—	—	165.00	0.95	3.20	4.15	53.2%	—	1
—	—	—	—	—	—	170.00	2.00	3.50	5.01	52.1%	1	1
—	—	—	—	—	—	175.00	2.60	3.80	5.35	50.9%	—	2
—	—	—	—	—	—	180.00	3.10	3.60	3.50	48.1%	8	2
—	—	—	—	—	—	185.00	3.50	4.20	4.40	47.9%	1	4
—	—	—	—	—	—	190.00	4.10	4.70	4.49	47.2%	2	5
0	1	55.4%	106.00	99.10	102.50	210.00	7.20	7.90	8.10	46.1%	1	217
1	2	53.9%	93.65	90.90	94.80	220.00	8.90	11.60	9.50	48.5%	1	3
—	—	—	—	—	—	230.00	10.20	12.60	13.81	45.5%	6	26
2	1	52.6%	74.85	77.10	80.50	240.00	13.30	16.90	14.65	47.2%	2	23
20	7	51.7%	74.50	70.20	73.90	250.00	16.30	19.50	19.00	45.8%	9	17
1	1	50.9%	46.00	63.60	67.70	260.00	20.60	23.60	22.80	45.9%	3	6
3	3	50.9%	42.00	58.30	62.20	270.00	—	—	—	—	—	—
4	3	50.8%	61.39	53.60	56.80	280.00	28.90	31.40	33.50	44.3%	1	426
CEG $298.07
10	2	51.9%	38.30	43.00	47.20	300.00	—	—	—	—	—	—
11	8	51.7%	44.22	39.00	43.10	310.00	—	—	—	—	—	—
12	7	51.7%	41.42	35.00	39.40	320.00	—	—	—	—	—	—
9	3	51.7%	30.67	32.10	36.00	330.00	—	—	—	—	—	—
35	4	51.4%	23.15	26.10	29.70	350.00	—	—	—	—	—	—
8	1	51.8%	28.30	23.00	27.50	360.00	—	—	—	—	—	—

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 CEG put/call ratio?

For the May 21, 2027 expiration, the CEG put/call ratio based on open interest is 6.72 (780 puts vs 116 calls), and 0.95 based on today's volume. A ratio above 1 means more puts than calls.

What is CEG's implied volatility?

At-the-money implied volatility for CEG options expiring May 21, 2027 is about 51.9%, an annualized estimate of how much the market expects Constellation Energy stock to move.

How many CEG option expiration dates are there?

CEG has 18 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.