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: Dec 15, 2028
Days to expiration: 796
Share price: $298.07
Put/call ratio (OI): 3.55
Put/call ratio (volume): 5.81
ATM implied volatility: 46.9%
Expected move: ±$206.58
Open interest (C / P): 606 / 2.15K

CEG options summary

The CEG options chain for the December 15, 2028 expiration lists 31 call and 31 put contracts, with 796 days until expiration. Open interest stands at 606 calls and 2,149 puts, a put/call ratio of 3.55, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $300.00 strike is 46.9%, which implies the market expects a move of about ±$206.58 (69.3%) in Constellation Energy stock by expiration.

The most open interest sits at the $290.00 call (69 contracts) and the $240.00 put (534 contracts).

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

CEG options chain · December 15, 2028

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
13	11	63.3%	151.80	180.50	184.50	135.00	7.10	8.70	9.40	47.4%	2	5
19	1	62.6%	184.12	176.50	181.00	140.00	6.50	9.70	8.60	47.2%	10	1
2	—	62.1%	144.40	173.00	177.50	145.00	0.00	0.00	12.70	12.5%	—	0
—	—	—	—	—	—	150.00	8.50	13.00	11.90	48.3%	15	22
—	—	—	—	—	—	155.00	9.50	13.40	12.65	47.0%	1	2
6	1	60.6%	173.36	162.50	167.00	160.00	10.50	15.00	12.70	47.3%	2	3
1	1	60.0%	147.20	159.00	163.50	165.00	12.90	14.90	16.25	45.4%	1	2
—	—	—	—	—	—	170.00	14.20	16.40	17.85	45.4%	1	21
—	—	—	—	—	—	175.00	14.00	17.70	17.03	45.1%	26	1
4	2	59.1%	117.00	149.50	154.00	180.00	15.50	20.00	20.06	45.8%	2	47
1	1	58.9%	114.77	146.50	151.00	185.00	17.00	21.50	20.90	45.5%	300	306
1	—	58.4%	114.85	143.00	148.00	190.00	18.50	23.00	24.40	45.2%	6	34
2	1	58.1%	136.00	140.00	145.00	195.00	20.00	24.50	24.09	44.9%	10	33
23	3	57.7%	112.90	137.00	142.00	200.00	21.50	26.00	24.45	44.5%	2	220
10	1	57.2%	136.80	131.50	136.00	210.00	24.50	28.40	31.73	43.1%	1	88
13	1	56.7%	130.00	126.00	130.50	220.00	29.00	33.00	34.41	43.4%	1	423
15	2	56.3%	112.06	120.50	125.50	230.00	32.80	35.50	41.60	41.9%	8	101
17	2	55.7%	89.60	115.50	120.00	240.00	36.10	40.10	37.90	41.9%	202	534
61	1	55.4%	113.50	110.50	115.50	250.00	40.90	45.00	49.50	41.8%	1	53
29	2	55.0%	108.90	106.00	110.50	260.00	46.10	49.00	47.60	41.0%	4	211
31	2	54.6%	104.39	101.50	106.00	270.00	50.00	54.50	62.80	41.0%	18	22
44	6	54.4%	104.81	97.00	102.00	280.00	0.00	0.00	67.28	0.8%	—	0
69	1	54.1%	96.13	93.00	98.00	290.00	60.50	65.00	60.50	40.4%	1	4
CEG $298.07
37	2	53.8%	93.25	89.00	94.00	300.00	66.00	70.50	79.30	40.0%	5	8
10	9	53.7%	88.50	85.50	90.50	310.00	72.00	75.80	92.38	39.5%	—	2
6	6	53.1%	88.93	82.00	85.60	320.00	77.50	82.00	90.00	39.3%	—	1
4	1	53.3%	74.90	78.50	83.50	330.00	—	—	—	—	—	—
47	1	53.1%	78.50	75.50	80.00	340.00	—	—	—	—	—	—
21	7	53.0%	75.61	72.50	77.00	350.00	96.50	101.00	96.00	38.4%	1	2
5	5	52.8%	70.79	69.50	74.00	360.00	103.00	108.00	109.61	38.2%	—	1
29	1	52.7%	41.00	64.00	69.00	380.00	—	—	—	—	—	—
11	1	52.5%	62.00	59.00	64.00	400.00	131.50	136.00	133.00	36.8%	1	1
15	1	52.3%	39.76	56.50	61.40	410.00	0.00	0.00	157.35	—	1	0
12	2	52.4%	55.00	54.50	59.50	420.00	146.50	151.50	153.94	36.4%	—	1
48	32	52.1%	54.10	50.50	54.90	440.00	—	—	—	—	—	—

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 December 15, 2028 expiration, the CEG put/call ratio based on open interest is 3.55 (2,149 puts vs 606 calls), and 5.81 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 December 15, 2028 is about 46.9%, 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.