LNT · Alliant Energy Corp · Options Chain

Track LNT — free

$65.61 -1.04 (-1.55%) At close · Sep 18

S&P 500 member Russell 1000 member Rebalance outlook locked

Market Cap

$16.94B

258.28M

Options Chain

Underlying $65.61 · at close Sep 18, 2026 Options Calculator

Pull option chains with greeks and open interest through the options chain API or MCP →

Positioning

Oct 16, 2026 · 26 days to expiry · 44 contracts · mixed daily-bar sessions · Mar 13, 2026–Sep 18, 2026; 20 unknown

Put / call OI

0.28

Call-heavy positioning

Open interest

867

as of Sep 17, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$70.00

$4.40 above spot

ATM implied vol

22.8%

market's expected move

Open interest by strike

Calls Puts

42.5

47.5

57.5

62.5

67.5

72.5

77.5

82.5

87.5

100

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Oct 16 26d Nov 20 61d Jan 15 117d Apr 16 208d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	—	—	—	$24.10	$28.00	—		$0.11	$0.00	$1.35	—	—	13	13
Call · $40 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:59.688 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $40 Daily-bar session May 1, 2026 Quote as of 2026-09-18 19:59:59.681 UTC Last $0.11 Breakeven $39.89 Implied vol — Delta — Gamma — Theta — Vega — Open interest 13 OI effective date Sep 17, 2026 Model this put
—	—	—	—	$21.60	$25.50	—		—	$0.00	$2.10	—	—	—	1
Call · $42.5 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:59.689 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $42.5 Daily-bar session Unknown Quote as of 2026-09-18 19:59:59.689 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 17, 2026 Model this put
—	—	95.9%	0.947	$19.30	$23.00	—		—	$0.00	$2.15	—	—	—	—
Call · $45 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:59.689 UTC Last — Breakeven — Implied vol 95.9% Delta 0.947 ≈95% ITM Gamma 0.007 Theta -0.04 Vega 0.019 Open interest — OI effective date — Model this call Put · $45 Daily-bar session Unknown Quote as of 2026-09-18 19:59:59.681 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	86.7%	0.936	$16.90	$20.50	—		—	$0.00	$1.35	—	—	—	—
Call · $47.5 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:59.689 UTC Last — Breakeven — Implied vol 86.7% Delta 0.936 ≈94% ITM Gamma 0.008 Theta -0.041 Vega 0.022 Open interest — OI effective date — Model this call Put · $47.5 Daily-bar session Unknown Quote as of 2026-09-18 19:59:59.681 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	75.4%	0.928	$14.40	$18.00	—		$0.10	$0.00	$2.15	—	—	1	4
Call · $50 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:59.691 UTC Last — Breakeven — Implied vol 75.4% Delta 0.928 ≈93% ITM Gamma 0.01 Theta -0.04 Vega 0.024 Open interest — OI effective date — Model this call Put · $50 Daily-bar session Sep 9, 2026 Quote as of 2026-09-18 19:58:46.543 UTC Last $0.10 Breakeven $49.90 Implied vol — Delta — Gamma — Theta — Vega — Open interest 4 OI effective date Sep 17, 2026 Model this put
—	—	48.4%	0.927	$9.10	$13.00	—		$0.03	$0.00	$2.15	—	—	1	1
Call · $55 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:59.691 UTC Last — Breakeven — Implied vol 48.4% Delta 0.927 ≈93% ITM Gamma 0.016 Theta -0.028 Vega 0.024 Open interest — OI effective date — Model this call Put · $55 Daily-bar session Sep 16, 2026 Quote as of 2026-09-18 19:59:59.690 UTC Last $0.03 Breakeven $54.97 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 17, 2026 Model this put
—	—	43.6%	0.888	$7.20	$10.20	—		—	$0.00	$2.15	—	—	—	—
Call · $57.5 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:59.691 UTC Last — Breakeven — Implied vol 43.6% Delta 0.888 ≈89% ITM Gamma 0.025 Theta -0.033 Vega 0.033 Open interest — OI effective date — Model this call Put · $57.5 Daily-bar session Unknown Quote as of 2026-09-18 19:59:59.691 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
2	1	47.4%	0.786	$5.60	$8.10	$16.80		$0.25	$0.00	$1.75	—	—	60	70
Call · $60 In the money Daily-bar session Jun 30, 2026 Quote as of 2026-09-18 19:59:59.691 UTC Last $16.80 Breakeven $76.80 Implied vol 47.4% Delta 0.786 ≈79% ITM Gamma 0.035 Theta -0.051 Vega 0.051 Open interest 2 OI effective date Sep 17, 2026 Model this call Put · $60 Daily-bar session Aug 17, 2026 Quote as of 2026-09-18 19:59:59.782 UTC Last $0.25 Breakeven $59.75 Implied vol — Delta — Gamma — Theta — Vega — Open interest 70 OI effective date Sep 17, 2026 Model this put
1	1	28%	0.766	$2.35	$5.60	$7.95		$0.42	$0.35	$0.90	-0.224	26.6%	1	4
Call · $62.5 In the money Daily-bar session Aug 21, 2026 Quote as of 2026-09-18 19:59:59.691 UTC Last $7.95 Breakeven $70.45 Implied vol 28% Delta 0.766 ≈77% ITM Gamma 0.063 Theta -0.034 Vega 0.054 Open interest 1 OI effective date Sep 17, 2026 Model this call Put · $62.5 Daily-bar session Sep 18, 2026 Quote as of 2026-09-18 19:59:59.691 UTC Last $0.42 Breakeven $62.08 Implied vol 26.6% Delta -0.224 ≈22% ITM Gamma 0.064 Theta -0.025 Vega 0.052 Open interest 4 OI effective date Sep 17, 2026 Model this put
18	2	20.5%	0.598	$1.10	$2.60	$2.28		$1.15	$0.80	$1.95	-0.416	25.1%	1	11
Call · $65 In the money Daily-bar session Sep 18, 2026 Quote as of 2026-09-18 19:59:59.691 UTC Last $2.28 Breakeven $67.28 Implied vol 20.5% Delta 0.598 ≈60% ITM Gamma 0.108 Theta -0.031 Vega 0.068 Open interest 18 OI effective date Sep 17, 2026 Model this call Put · $65 Daily-bar session Sep 18, 2026 Quote as of 2026-09-18 19:58:46.795 UTC Last $1.15 Breakeven $63.85 Implied vol 25.1% Delta -0.416 ≈42% ITM Gamma 0.089 Theta -0.03 Vega 0.068 Open interest 11 OI effective date Sep 17, 2026 Model this put
Underlying $65.61
12	3	23.9%	0.356	$0.55	$1.40	$1.65		$1.51	$1.40	$3.00	-0.716	16.3%	2	27
Call · $67.5 Daily-bar session Sep 14, 2026 Quote as of 2026-09-18 19:59:59.691 UTC Last $1.65 Breakeven $69.15 Implied vol 23.9% Delta 0.356 ≈36% ITM Gamma 0.089 Theta -0.032 Vega 0.065 Open interest 12 OI effective date Sep 17, 2026 Model this call Put · $67.5 In the money Daily-bar session Sep 9, 2026 Quote as of 2026-09-18 19:59:59.691 UTC Last $1.51 Breakeven $65.99 Implied vol 16.3% Delta -0.716 ≈72% ITM Gamma 0.119 Theta -0.013 Vega 0.059 Open interest 27 OI effective date Sep 17, 2026 Model this put
74	1	—	—	$0.00	$2.40	$0.30		$4.10	$3.20	$6.00	-0.822	24.4%	2	59
Call · $70 Daily-bar session Sep 16, 2026 Quote as of 2026-09-18 19:59:59.692 UTC Last $0.30 Breakeven $70.30 Implied vol — Delta — Gamma — Theta — Vega — Open interest 74 OI effective date Sep 17, 2026 Model this call Put · $70 In the money Daily-bar session Sep 16, 2026 Quote as of 2026-09-18 19:59:59.692 UTC Last $4.10 Breakeven $65.90 Implied vol 24.4% Delta -0.822 ≈82% ITM Gamma 0.061 Theta -0.015 Vega 0.046 Open interest 59 OI effective date Sep 17, 2026 Model this put
65	1	—	—	$0.00	$1.90	$0.20		$4.60	$5.40	$8.70	-0.867	31.5%	1	—
Call · $72.5 Daily-bar session Sep 14, 2026 Quote as of 2026-09-18 19:59:55.472 UTC Last $0.20 Breakeven $72.70 Implied vol — Delta — Gamma — Theta — Vega — Open interest 65 OI effective date Sep 17, 2026 Model this call Put · $72.5 In the money Daily-bar session Mar 13, 2026 Quote as of 2026-09-18 19:59:59.692 UTC Last $4.60 Breakeven $67.90 Implied vol 31.5% Delta -0.867 ≈87% ITM Gamma 0.039 Theta -0.016 Vega 0.038 Open interest — OI effective date — Model this put
84	7	—	—	$0.00	$0.70	$0.19		—	$7.20	$10.90	—	—	—	—
Call · $75 Daily-bar session Sep 1, 2026 Quote as of 2026-09-18 19:58:46.543 UTC Last $0.19 Breakeven $75.19 Implied vol — Delta — Gamma — Theta — Vega — Open interest 84 OI effective date Sep 17, 2026 Model this call Put · $75 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:59.681 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
97	1	—	—	$0.00	$0.25	$0.10		$4.80	$9.90	$13.60	-0.968	32.5%	2	—
Call · $77.5 Daily-bar session Sep 14, 2026 Quote as of 2026-09-18 19:59:59.680 UTC Last $0.10 Breakeven $77.60 Implied vol — Delta — Gamma — Theta — Vega — Open interest 97 OI effective date Sep 17, 2026 Model this call Put · $77.5 In the money Daily-bar session Jun 23, 2026 Quote as of 2026-09-18 19:59:59.692 UTC Last $4.80 Breakeven $72.70 Implied vol 32.5% Delta -0.968 ≈97% ITM Gamma 0.013 Theta 0 Vega 0.013 Open interest — OI effective date — Model this put
103	90	—	—	$0.00	$2.15	$0.25		$8.00	$12.20	$16.20	-0.986	32.6%	1	—
Call · $80 Daily-bar session Sep 10, 2026 Quote as of 2026-09-18 19:59:59.869 UTC Last $0.25 Breakeven $80.25 Implied vol — Delta — Gamma — Theta — Vega — Open interest 103 OI effective date Sep 17, 2026 Model this call Put · $80 In the money Daily-bar session Jun 17, 2026 Quote as of 2026-09-18 19:59:59.681 UTC Last $8.00 Breakeven $72.00 Implied vol 32.6% Delta -0.986 ≈99% ITM Gamma 0.006 Theta 0.005 Vega 0.006 Open interest — OI effective date — Model this put
68	28	—	—	$0.00	$2.00	$0.65		—	$14.70	$18.40	—	—	—	—
Call · $82.5 Daily-bar session Jul 24, 2026 Quote as of 2026-09-18 19:59:50.321 UTC Last $0.65 Breakeven $83.15 Implied vol — Delta — Gamma — Theta — Vega — Open interest 68 OI effective date Sep 17, 2026 Model this call Put · $82.5 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:59.692 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
12	10	—	—	$0.00	$2.00	$0.42		$13.48	$17.90	$21.00	-0.934	60.6%	4	—
Call · $85 Daily-bar session Jun 2, 2026 Quote as of 2026-09-18 19:59:50.321 UTC Last $0.42 Breakeven $85.42 Implied vol — Delta — Gamma — Theta — Vega — Open interest 12 OI effective date Sep 17, 2026 Model this call Put · $85 In the money Daily-bar session Apr 15, 2026 Quote as of 2026-09-18 19:59:59.692 UTC Last $13.48 Breakeven $71.52 Implied vol 60.6% Delta -0.934 ≈93% ITM Gamma 0.012 Theta -0.018 Vega 0.023 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.15	—		—	$19.70	$23.30	—	—	—	—
Call · $87.5 Daily-bar session Unknown Quote as of 2026-09-18 19:59:59.977 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $87.5 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:59.693 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.35	—		—	$22.20	$25.80	—	—	—	—
Call · $90 Daily-bar session Unknown Quote as of 2026-09-18 19:59:59.698 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $90 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:54:58.340 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
141	69	—	—	$0.00	$0.25	$0.10		—	$27.20	$31.10	-0.994	53.6%	—	—
Call · $95 Daily-bar session Jul 14, 2026 Quote as of 2026-09-18 19:59:59.945 UTC Last $0.10 Breakeven $95.10 Implied vol — Delta — Gamma — Theta — Vega — Open interest 141 OI effective date Sep 17, 2026 Model this call Put · $95 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:59.693 UTC Last — Breakeven — Implied vol 53.6% Delta -0.994 ≈99% ITM Gamma 0.002 Theta 0.007 Vega 0.003 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.95	—		—	$32.20	$36.10	-0.991	64%	—	—
Call · $100 Daily-bar session Unknown Quote as of 2026-09-18 19:59:59.693 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $100 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:59.693 UTC Last — Breakeven — Implied vol 64% Delta -0.991 ≈99% ITM Gamma 0.002 Theta 0.005 Vega 0.004 Open interest — OI effective date — Model this put

About this data

Each contract's last price, day range and volume belong to the daily-bar session shown in its details; unknown means the source omitted that timestamp. Open interest has its own effective date shown separately; implied volatility and greeks are model values computed when fetched. This chain has mixed daily-bar sessions · Mar 13, 2026–Sep 18, 2026; 20 unknown. Positioning totals are shown only when every returned open-interest value has the same known effective date. Bid and ask are real-time consolidated OPRA readings.

In-the-money strikes are tinted, deepening toward the money, and the bar beside each open-interest figure scales to the heaviest strike shown. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.

Key facts CIK 352541 CUSIP 018802108 13F (30d) 17 filings 16 filers Visit website Investor relations