SR · Spire Inc

Track SR — free Ask ALVIS about SR

$80.65 -0.36 (-0.44%)

Market Cap

$4.72B

59.12M

Options Chain

15-min delayed Underlying $80.65 · today Options Calculator

Positioning

Aug 21, 2026 · 22 days to expiry · 22 contracts

Put / call OI

0.02

Call-heavy positioning

Open interest

172

contracts outstanding

Volume

traded today

Max pain

$70.00

$10.65 below spot

ATM implied vol

29.5%

market's expected move

Open interest by strike

Calls Puts

100

105

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 22d Sep 18 50d Dec 18 141d Mar 19 232d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	90.5%	0.967	—		$0.11	—	—	1	1
Call · $55 In the money Last — Breakeven — Implied vol 90.5% Delta 0.967 ≈97% ITM Gamma 0.004 Theta -0.027 Vega 0.016 Open interest 0 Model this call Put · $55 Last $0.11 Breakeven $54.89 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this put
0	—	72.4%	0.96	—		—	—	—	—	0
Call · $60 In the money Last — Breakeven — Implied vol 72.4% Delta 0.96 ≈96% ITM Gamma 0.006 Theta -0.026 Vega 0.017 Open interest 0 Model this call Put · $60 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	53.1%	0.957	—		—	-0.068	62.2%	—	0
Call · $65 In the money Last — Breakeven — Implied vol 53.1% Delta 0.957 ≈96% ITM Gamma 0.009 Theta -0.02 Vega 0.018 Open interest 0 Model this call Put · $65 Last — Breakeven — Implied vol 62.2% Delta -0.068 ≈7% ITM Gamma 0.011 Theta -0.037 Vega 0.031 Open interest 0 Model this put
5	5	39.9%	0.933	$10.70		—	-0.223	87.7%	—	0
Call · $70 In the money Last $10.70 Breakeven $80.70 Implied vol 39.9% Delta 0.933 ≈93% ITM Gamma 0.017 Theta -0.022 Vega 0.032 Open interest 5 Model this call Put · $70 Last — Breakeven — Implied vol 87.7% Delta -0.223 ≈22% ITM Gamma 0.017 Theta -0.119 Vega 0.063 Open interest 0 Model this put
0	—	32.4%	0.823	—		—	-0.151	29.1%	—	0
Call · $75 In the money Last — Breakeven — Implied vol 32.4% Delta 0.823 ≈82% ITM Gamma 0.041 Theta -0.037 Vega 0.051 Open interest 0 Model this call Put · $75 Last — Breakeven — Implied vol 29.1% Delta -0.151 ≈15% ITM Gamma 0.041 Theta -0.031 Vega 0.051 Open interest 0 Model this put
0	—	29.2%	0.549	—		—	-0.45	29.7%	—	0
Call · $80 In the money Last — Breakeven — Implied vol 29.2% Delta 0.549 ≈55% ITM Gamma 0.069 Theta -0.052 Vega 0.078 Open interest 0 Model this call Put · $80 Last — Breakeven — Implied vol 29.7% Delta -0.45 ≈45% ITM Gamma 0.068 Theta -0.054 Vega 0.078 Open interest 0 Model this put
Underlying $80.65
0	—	27.6%	0.221	—		$4.70	-0.835	21.9%	2	2
Call · $85 Last — Breakeven — Implied vol 27.6% Delta 0.221 ≈22% ITM Gamma 0.055 Theta -0.037 Vega 0.054 Open interest 0 Model this call Put · $85 In the money Last $4.70 Breakeven $80.30 Implied vol 21.9% Delta -0.835 ≈84% ITM Gamma 0.057 Theta -0.025 Vega 0.054 Open interest 2 Model this put
164	1	35.2%	0.106	$0.26		—	—	—	—	0
Call · $90 Last $0.26 Breakeven $90.26 Implied vol 35.2% Delta 0.106 ≈11% ITM Gamma 0.026 Theta -0.029 Vega 0.037 Open interest 164 Model this call Put · $90 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	-0.955	38.6%	—	0
Call · $95 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $95 In the money Last — Breakeven — Implied vol 38.6% Delta -0.955 ≈96% ITM Gamma 0.012 Theta -0.016 Vega 0.022 Open interest 0 Model this put
0	—	—	—	—		—	-0.962	48.8%	—	0
Call · $100 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $100 In the money Last — Breakeven — Implied vol 48.8% Delta -0.962 ≈96% ITM Gamma 0.009 Theta -0.017 Vega 0.022 Open interest 0 Model this put
0	—	—	—	—		—	-0.966	57.8%	—	0
Call · $105 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $105 In the money Last — Breakeven — Implied vol 57.8% Delta -0.966 ≈97% ITM Gamma 0.007 Theta -0.018 Vega 0.011 Open interest 0 Model this put

About this data

Greeks, implied volatility, open interest and the last price come from the latest daily snapshot and are 15-minute delayed. Bid and ask are not included on this plan.

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 1126956 CUSIP 84857L101 13F (30d) 111 filings 105 filers Visit website Investor relations