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: May 21, 2027
Days to expiration: 224
Share price: $86.17
Put/call ratio (OI): 0.76
Put/call ratio (volume): 5.88
ATM implied volatility: 21.6%
Expected move: ±$14.61
Open interest (C / P): 110 / 84

SO options summary

The SO options chain for the May 21, 2027 expiration lists 10 call and 9 put contracts, with 224 days until expiration. Open interest stands at 110 calls and 84 puts, a put/call ratio of 0.76, which is fairly balanced between calls and puts. At-the-money implied volatility near the $85.00 strike is 21.6%, which implies the market expects a move of about ±$14.61 (17.0%) in Southern stock by expiration.

The most open interest sits at the $95.00 call (41 contracts) and the $55.00 put (36 contracts).

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

SO options chain · May 21, 2027

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
—	—	—	—	—	—	55.00	0.20	0.50	0.20	36.7%	104	36
—	—	—	—	—	—	60.00	0.15	0.50	0.35	30.7%	29	16
1	1	37.6%	14.45	15.50	19.40	70.00	0.80	1.40	1.15	26.9%	—	8
1	1	30.0%	10.45	11.50	14.40	75.00	1.25	1.75	2.35	22.6%	1	2
—	—	—	—	—	—	77.50	1.55	2.25	2.55	21.7%	—	5
—	—	—	—	—	—	80.00	2.25	2.85	2.85	20.8%	—	2
4	—	25.5%	7.65	5.80	8.70	82.50	3.00	3.60	4.50	19.9%	1	9
16	2	23.2%	4.20	4.30	6.80	85.00	3.90	4.80	5.60	20.1%	6	6
SO $86.17
9	5	20.1%	4.60	4.10	4.80	87.50	—	—	5.90	—	—	—
22	7	19.3%	3.60	3.20	3.60	90.00	—	—	—	—	—	—
41	4	18.7%	1.95	1.55	2.00	95.00	—	—	—	—	—	—
1	—	19.3%	1.05	0.65	1.20	100.00	—	—	—	—	—	—
10	2	28.6%	0.32	0.15	2.20	105.00	—	—	—	—	—	—
5	2	21.6%	0.35	0.15	0.55	110.00	—	—	—	—	—	—

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 May 21, 2027 expiration, the SO put/call ratio based on open interest is 0.76 (84 puts vs 110 calls), and 5.88 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 May 21, 2027 is about 21.6%, 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.