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 18, 2026
Days to expiration: 68
Share price: $298.07
Put/call ratio (OI): 1.38
Put/call ratio (volume): 0.16
ATM implied volatility: 49.3%
Expected move: ±$63.47
Open interest (C / P): 8.47K / 11.72K

CEG options summary

The CEG options chain for the December 18, 2026 expiration lists 51 call and 40 put contracts, with 68 days until expiration. Open interest stands at 8,473 calls and 11,719 puts, a put/call ratio of 1.38, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $300.00 strike is 49.3%, which implies the market expects a move of about ±$63.47 (21.3%) in Constellation Energy stock by expiration.

The most open interest sits at the $600.00 call (978 contracts) and the $250.00 put (1.94K contracts).

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

CEG options chain · December 18, 2026

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
—	—	—	—	—	—	125.00	0.00	1.00	0.10	95.0%	1	102
2	2	101.3%	127.45	166.70	171.40	130.00	0.00	2.70	0.40	107.2%	2	4
—	—	—	—	—	—	135.00	0.00	0.00	1.70	25.0%	7	0
—	—	—	—	—	—	140.00	0.00	0.00	0.51	25.0%	1	0
4	1	90.7%	153.00	151.80	156.50	145.00	0.00	4.30	0.20	103.7%	2	59
5	1	82.1%	135.40	146.90	150.80	150.00	0.00	4.40	0.23	100.0%	1	12
—	—	—	—	—	—	155.00	0.25	4.20	2.46	96.1%	1	3
9	1	76.8%	125.75	137.00	140.90	160.00	0.00	4.40	0.30	91.8%	2	10
11	1	76.2%	103.30	131.80	136.50	165.00	0.00	4.30	0.66	87.5%	2	210
6	2	—	87.99	104.80	108.70	170.00	0.00	0.65	0.17	60.0%	3	145
5	1	74.9%	135.00	122.30	127.00	175.00	0.00	4.50	0.35	80.9%	1	73
13	1	—	73.90	95.40	99.40	180.00	0.00	2.70	0.58	69.3%	4	226
0	3	—	69.50	90.90	94.80	185.00	0.05	0.85	0.45	54.4%	1	251
0	10	—	90.85	0.00	0.00	190.00	0.35	0.70	0.73	53.0%	4	192
10	1	62.7%	109.50	102.80	106.70	195.00	0.25	0.70	1.55	52.9%	4	925
28	2	61.1%	100.40	97.90	102.00	200.00	0.40	1.70	0.75	54.0%	1	726
15	2	58.1%	83.90	88.50	92.40	210.00	0.95	1.90	1.24	51.6%	6	232
11	3	55.6%	86.60	79.20	83.10	220.00	1.50	2.60	1.82	50.0%	3	1,122
25	1	53.2%	73.44	70.10	74.00	230.00	2.40	4.00	2.67	53.3%	4	915
60	4	53.4%	51.53	62.30	65.50	240.00	3.70	5.20	3.94	51.2%	9	660
181	3	50.4%	54.00	53.10	57.30	250.00	5.10	6.50	5.55	48.5%	24	1,936
443	11	54.5%	46.00	45.70	49.60	260.00	7.30	9.20	7.94	48.7%	17	828
704	2	50.1%	41.20	39.70	42.60	270.00	10.30	12.20	10.80	48.1%	17	976
312	8	53.0%	35.65	33.60	36.50	280.00	13.60	15.50	14.00	46.9%	14	783
741	14	51.2%	30.00	27.80	30.30	290.00	17.70	20.10	18.50	47.0%	9	194
CEG $298.07
613	40	50.3%	24.25	22.80	25.10	300.00	22.70	26.00	23.50	48.3%	30	411
358	24	50.4%	21.00	17.80	21.00	310.00	28.40	32.20	29.59	49.0%	4	92
503	26	50.4%	17.22	14.20	17.40	320.00	34.60	38.70	40.10	49.2%	7	105
204	984	51.8%	13.20	11.40	15.00	330.00	41.50	45.80	43.40	49.5%	5	408
218	19	51.5%	10.90	9.40	12.20	340.00	49.70	52.40	77.45	47.7%	1	15
488	46	51.0%	8.70	8.40	9.80	350.00	57.60	61.20	53.00	49.8%	2	29
508	6	52.7%	7.40	6.00	8.60	360.00	65.50	69.60	81.20	50.3%	9	22
228	5	51.3%	5.70	5.50	6.50	370.00	74.20	78.30	83.50	50.9%	5	20
174	2	50.2%	4.50	4.30	5.50	380.00	83.10	87.30	118.32	51.7%	4	10
157	7	52.3%	4.07	2.15	4.50	390.00	92.30	96.50	128.17	52.6%	4	0
542	15	50.0%	3.40	2.40	3.70	400.00	125.40	128.90	162.30	106.8%	1	18
31	1	53.4%	3.03	2.10	4.20	410.00	122.00	126.50	131.00	81.5%	2	2
47	1	51.6%	2.40	1.85	2.50	420.00	121.10	124.90	132.40	55.5%	3	3
46	2	50.2%	3.00	0.25	2.75	430.00	—	—	—	—	—	—
39	3	54.3%	1.00	0.10	3.40	440.00	—	—	—	—	—	—
207	1	56.3%	2.15	0.10	3.30	450.00	0.00	0.00	175.00	—	—	0
13	1	62.5%	1.70	0.00	4.70	460.00	—	—	—	—	—	—
44	1	65.4%	1.50	0.00	4.90	470.00	—	—	—	—	—	—
100	19	67.7%	1.30	0.00	4.90	480.00	—	—	—	—	—	—
70	1	69.8%	0.56	0.00	4.90	490.00	—	—	—	—	—	—
0	5	25.0%	2.00	0.00	0.00	500.00	—	—	—	—	—	—
49	3	69.2%	3.50	0.05	3.40	510.00	—	—	—	—	—	—
54	50	58.5%	0.90	0.00	1.00	520.00	—	—	—	—	—	—
17	1	75.5%	1.83	0.05	4.10	530.00	—	—	—	—	—	—
8	1	78.9%	1.15	0.00	4.60	540.00	—	—	—	—	—	—
0	3	25.0%	0.85	0.00	0.00	550.00	—	—	—	—	—	—
12	23	78.9%	2.39	0.70	2.90	560.00	—	—	—	—	—	—
0	1	25.0%	0.90	0.00	0.00	570.00	—	—	—	—	—	—
180	1	85.6%	0.53	0.00	4.50	580.00	—	—	—	—	—	—
978	2	69.6%	0.10	0.00	0.90	600.00	347.30	351.60	281.00	212.4%	—	0

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 18, 2026 expiration, the CEG put/call ratio based on open interest is 1.38 (11,719 puts vs 8,473 calls), and 0.16 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 18, 2026 is about 49.3%, 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.