Southern (SO) Options Chain

NYSE: SOUtilitiesElectric Utilities: CentralUSD

86.17+0.02 (+0.02%)

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

Expiration date

Expiration: Jan 21, 2028
Days to expiration: 468
Share price: $86.17
Put/call ratio (OI): 0.36
Put/call ratio (volume): 1.18
ATM implied volatility: 22.3%
Expected move: ±$21.71
Open interest (C / P): 3.58K / 1.30K

SO options summary

The SO options chain for the January 21, 2028 expiration lists 27 call and 23 put contracts, with 468 days until expiration. Open interest stands at 3,584 calls and 1,304 puts, a put/call ratio of 0.36, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $85.00 strike is 22.3%, which implies the market expects a move of about ±$21.71 (25.2%) in Southern stock by expiration.

The most open interest sits at the $85.00 call (615 contracts) and the $82.50 put (256 contracts).

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

SO options chain · January 21, 2028

SO 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
1	—	54.9%	45.15	43.50	48.50	42.50	0.00	0.65	0.19	39.5%	10	119
0	1	—	51.90	0.00	0.00	45.00	0.00	0.00	0.53	12.5%	1	0
0	1	56.8%	43.90	37.00	42.50	47.50	0.00	3.50	1.00	55.0%	—	2
1	1	44.5%	36.48	34.00	38.50	50.00	0.00	1.00	0.75	35.0%	10	24
—	—	—	—	—	—	55.00	0.05	2.95	1.10	41.8%	1	60
17	3	37.6%	24.01	25.00	29.50	60.00	1.10	1.40	1.25	27.8%	1	86
17	2	34.2%	20.45	21.40	25.10	65.00	1.40	1.80	1.60	25.1%	9	44
194	1	28.5%	18.36	17.70	20.10	70.00	1.90	2.40	2.50	22.9%	15	73
67	1	27.1%	13.50	13.00	16.40	75.00	2.65	3.30	3.10	21.0%	1	116
19	12	26.2%	10.95	11.70	14.60	77.50	3.10	4.10	4.30	20.8%	1	4
116	1	25.4%	11.56	10.00	12.90	80.00	3.40	5.30	5.10	21.4%	26	58
382	1	24.3%	9.95	8.80	11.20	82.50	4.70	5.90	5.44	20.0%	18	256
615	2	24.6%	8.70	8.10	10.10	85.00	5.60	7.10	6.80	19.9%	1	205
SO $86.17
111	3	21.3%	5.25	6.80	7.70	87.50	6.60	8.20	8.50	19.2%	1	45
374	3	22.9%	6.05	5.20	7.30	90.00	6.40	10.10	8.12	20.3%	2	54
295	5	22.6%	4.30	4.20	6.30	92.50	8.00	12.30	9.31	21.8%	1	8
285	10	22.1%	4.10	3.60	5.30	95.00	9.00	14.00	11.85	21.8%	1	34
87	1	20.8%	2.82	2.80	4.10	97.50	12.50	15.00	13.97	19.6%	2	35
217	5	20.8%	3.01	2.45	3.50	100.00	12.60	15.20	12.80	14.0%	3	66
171	2	19.9%	2.00	1.55	2.25	105.00	14.50	18.70	15.60	—	—	1
196	1	20.9%	0.92	0.00	1.80	110.00	22.00	26.50	21.73	24.1%	8	13
44	7	28.4%	0.70	0.00	3.20	115.00	26.60	31.50	26.28	26.6%	7	0
77	3	22.1%	0.52	0.45	1.10	120.00	—	—	—	—	—	—
24	21	31.6%	0.35	0.00	2.85	125.00	36.60	41.50	36.50	31.0%	—	1
2	4	29.0%	0.98	0.00	1.75	130.00	—	—	—	—	—	—
48	6	43.0%	1.26	0.00	5.00	135.00	—	—	—	—	—	—
108	2	28.3%	1.00	0.00	1.00	140.00	—	—	—	—	—	—
116	2	25.4%	0.32	0.00	0.45	145.00	—	—	—	—	—	—

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 SO put/call ratio?

For the January 21, 2028 expiration, the SO put/call ratio based on open interest is 0.36 (1,304 puts vs 3,584 calls), and 1.18 based on today's volume. A ratio above 1 means more puts than calls.

What is SO's implied volatility?

At-the-money implied volatility for SO options expiring January 21, 2028 is about 22.3%, an annualized estimate of how much the market expects Southern stock to move.

How many SO option expiration dates are there?

SO has 15 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.