Alliant Energy (LNT) Options Chain

NASDAQ: LNTUtilitiesPower GenerationUSD

65.46+0.245 (+0.38%)

Market open · Delayed 15 min · as of Oct 8, 1:46 PM ET

Expiration date

Expiration: Oct 16, 2026
Days to expiration: 8
Share price: $65.45
Put/call ratio (OI): 0.28
Put/call ratio (volume): 0.23
ATM implied volatility: 31.5%
Expected move: ±$3.05
Open interest (C / P): 662 / 184

LNT options summary

The LNT options chain for the October 16, 2026 expiration lists 12 call and 13 put contracts, with 8 days until expiration. Open interest stands at 662 calls and 184 puts, a put/call ratio of 0.28, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $65.00 strike is 31.5%, which implies the market expects a move of about ±$3.05 (4.7%) in Alliant Energy stock by expiration.

The most open interest sits at the $95.00 call (141 contracts) and the $60.00 put (71 contracts).

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

LNT options chain · October 16, 2026

LNT 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
—	—	—	—	—	—	40.00	0.00	1.15	0.11	217.2%	13	13
—	—	—	—	—	—	42.50	0.00	1.55	0.05	210.4%	—	1
—	—	—	—	—	—	50.00	0.00	2.15	0.10	161.9%	1	4
—	—	—	—	—	—	55.00	0.00	2.15	0.03	119.6%	1	1
2	1	162.3%	16.80	7.70	11.20	60.00	0.00	0.75	0.15	52.0%	1	71
1	1	43.5%	2.80	2.40	3.60	62.50	0.00	0.95	0.16	52.5%	1	33
21	2	24.7%	1.20	0.75	1.25	65.00	0.45	1.35	0.75	38.3%	2	40
LNT $65.45
18	1	37.6%	0.15	0.00	0.75	67.50	1.00	3.90	3.73	66.2%	10	13
74	2	59.5%	0.10	0.00	1.75	70.00	4.20	5.30	4.10	55.7%	2	0
62	7	56.5%	0.20	0.00	0.75	72.50	3.30	3.90	4.60	—	1	2
84	7	67.6%	0.19	0.00	0.70	75.00	—	—	—	—	—	—
91	5	60.4%	0.10	0.00	0.20	77.50	4.20	7.00	4.80	—	—	1
100	9	98.0%	0.10	0.00	1.00	80.00	4.90	8.70	8.00	—	1	3
68	28	134.8%	0.65	0.00	2.15	82.50	—	—	—	—	—	—
0	10	50.0%	0.42	0.00	0.00	85.00	12.00	14.40	13.48	—	—	2
141	69	114.8%	0.10	0.00	0.20	95.00	—	—	—	—	—	—

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 LNT put/call ratio?

For the October 16, 2026 expiration, the LNT put/call ratio based on open interest is 0.28 (184 puts vs 662 calls), and 0.23 based on today's volume. A ratio above 1 means more puts than calls.

What is LNT's implied volatility?

At-the-money implied volatility for LNT options expiring October 16, 2026 is about 31.5%, an annualized estimate of how much the market expects Alliant Energy stock to move.

How many LNT option expiration dates are there?

LNT has 4 listed expiration dates, from Oct 16, 2026 to Apr 16, 2027.

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.