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: Oct 23, 2026
Days to expiration: 12
Share price: $298.07
Put/call ratio (OI): 4.16
Put/call ratio (volume): 0.69
ATM implied volatility: 53.3%
Expected move: ±$28.80
Open interest (C / P): 2.06K / 8.57K

CEG options summary

The CEG options chain for the October 23, 2026 expiration lists 28 call and 26 put contracts, with 12 days until expiration. Open interest stands at 2,059 calls and 8,569 puts, a put/call ratio of 4.16, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $300.00 strike is 53.3%, which implies the market expects a move of about ±$28.80 (9.7%) in Constellation Energy stock by expiration.

The most open interest sits at the $300.00 call (372 contracts) and the $225.00 put (6.11K contracts).

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

CEG options chain · October 23, 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
—	—	—	—	—	—	195.00	0.00	4.30	0.10	158.9%	2	2
—	—	—	—	—	—	200.00	0.00	3.90	0.01	147.7%	1	7
—	—	—	—	—	—	205.00	0.00	3.70	0.01	138.5%	5	9
—	—	—	—	—	—	210.00	0.00	0.90	0.14	99.6%	3	17
—	—	—	—	—	—	215.00	0.00	4.30	0.10	128.6%	4	22
2	4	76.6%	47.50	76.30	80.20	220.00	0.00	0.80	0.11	86.4%	3	379
—	—	—	—	—	—	225.00	0.10	0.65	0.20	80.0%	2	6,113
2	2	69.0%	36.75	66.40	70.20	230.00	0.10	0.30	0.19	67.7%	7	87
—	—	—	—	—	—	235.00	0.05	0.50	0.39	65.9%	5	196
7	10	69.3%	55.79	56.80	60.50	240.00	0.10	0.40	0.25	59.9%	2	100
—	—	—	—	—	—	245.00	0.00	0.85	0.48	60.2%	33	34
105	1	64.5%	18.62	47.40	50.60	250.00	0.15	0.90	0.45	57.3%	31	104
134	15	57.2%	43.50	42.90	44.90	255.00	0.05	1.20	0.55	53.8%	2	61
176	1	53.6%	42.84	37.10	41.00	260.00	0.40	1.25	1.70	51.5%	3	31
50	5	55.4%	34.30	33.20	36.30	265.00	0.80	2.30	1.30	54.1%	4	52
54	1	64.2%	29.75	28.00	31.70	270.00	1.45	3.30	1.70	54.9%	23	90
60	4	61.8%	25.55	23.70	27.50	275.00	2.05	4.50	2.70	54.3%	7	127
99	5	51.4%	21.73	20.50	23.70	280.00	2.05	5.70	3.30	50.4%	6	30
52	7	60.3%	19.82	16.10	20.30	285.00	4.10	6.40	4.70	56.0%	70	345
84	9	50.0%	15.60	13.80	16.50	290.00	5.70	8.50	6.19	50.1%	51	72
55	40	55.5%	13.80	10.10	13.50	295.00	7.60	10.50	8.15	55.8%	42	49
CEG $298.07
372	192	51.5%	9.50	9.30	10.20	300.00	10.40	12.90	11.50	55.1%	74	231
72	21	53.1%	8.46	6.90	10.00	305.00	—	—	—	—	—	—
154	44	51.3%	6.79	5.40	7.20	310.00	15.70	20.00	19.06	60.0%	1	6
116	4	52.1%	4.72	4.20	5.80	315.00	19.60	23.50	20.00	50.0%	2	2
25	34	50.5%	3.70	3.10	4.00	320.00	23.20	27.40	35.00	61.5%	5	102
25	11	52.3%	3.00	2.30	3.50	325.00	28.30	31.60	36.08	53.1%	2	301
68	7	50.9%	2.25	1.20	2.75	330.00	—	—	—	—	—	—
10	4	56.5%	0.95	0.00	2.05	335.00	—	—	—	—	—	—
88	5	51.3%	1.17	0.30	1.80	340.00	—	—	—	—	—	—
35	1	59.3%	1.28	0.00	2.75	345.00	—	—	—	—	—	—
78	2	50.0%	0.75	0.05	0.85	350.00	—	—	—	—	—	—
1	—	65.8%	2.45	0.00	2.45	355.00	—	—	—	—	—	—
7	3	60.5%	1.86	0.05	1.20	360.00	—	—	—	—	—	—
92	127	88.1%	0.80	0.00	4.30	370.00	—	—	—	—	—	—
36	3	94.7%	1.66	0.00	4.10	380.00	—	—	—	—	—	—

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 October 23, 2026 expiration, the CEG put/call ratio based on open interest is 4.16 (8,569 puts vs 2,059 calls), and 0.69 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 October 23, 2026 is about 53.3%, 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.