SPG · Simon Property Group Inc.

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$229.74 +4.54 (+2.02%) At close · Jul 24

Market Cap

$74.52B

324.29M

Options Chain

15-min delayed Underlying $229.74 · today Options Calculator

Positioning

Aug 21, 2026 · 26 days to expiry · 52 contracts

Put / call OI

0.59

Call-heavy positioning

Open interest

4,451

contracts outstanding

Volume

555

traded today

Max pain

$220.00

$9.74 below spot

ATM implied vol

25.6%

market's expected move

Open interest by strike

Calls Puts

135

140

145

150

155

160

165

170

175

180

185

190

195

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220

230

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320

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 26d Sep 18 54d Oct 16 82d Dec 18 145d Jan 15 173d Mar 19 236d Jun 17 326d Jan 21 544d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	85.3%	0.994	—		—	-0.009	89.1%	—	0
Call · $135 In the money Last — Breakeven — Implied vol 85.3% Delta 0.994 ≈99% ITM Gamma 0 Theta -0.012 Vega 0.008 Open interest 0 Model this call Put · $135 Last — Breakeven — Implied vol 89.1% Delta -0.009 ≈1% ITM Gamma 0 Theta -0.024 Vega 0.01 Open interest 0 Model this put
0	—	89.1%	0.987	—		—	-0.008	81.5%	—	0
Call · $140 In the money Last — Breakeven — Implied vol 89.1% Delta 0.987 ≈99% ITM Gamma 0.001 Theta -0.03 Vega 0.023 Open interest 0 Model this call Put · $140 Last — Breakeven — Implied vol 81.5% Delta -0.008 ≈1% ITM Gamma 0 Theta -0.021 Vega 0.011 Open interest 0 Model this put
0	—	93.5%	0.977	—		—	-0.009	76.5%	—	0
Call · $145 In the money Last — Breakeven — Implied vol 93.5% Delta 0.977 ≈98% ITM Gamma 0.001 Theta -0.054 Vega 0.046 Open interest 0 Model this call Put · $145 Last — Breakeven — Implied vol 76.5% Delta -0.009 ≈1% ITM Gamma 0 Theta -0.021 Vega 0.011 Open interest 0 Model this put
0	—	79.8%	0.983	—		—	-0.01	72.7%	—	2
Call · $150 In the money Last — Breakeven — Implied vol 79.8% Delta 0.983 ≈98% ITM Gamma 0.001 Theta -0.034 Vega 0.024 Open interest 0 Model this call Put · $150 Last — Breakeven — Implied vol 72.7% Delta -0.01 ≈1% ITM Gamma 0.001 Theta -0.023 Vega 0.026 Open interest 2 Model this put
0	—	74.3%	0.982	—		$0.05	-0.007	62.5%	10	78
Call · $155 In the money Last — Breakeven — Implied vol 74.3% Delta 0.982 ≈98% ITM Gamma 0.001 Theta -0.034 Vega 0.024 Open interest 0 Model this call Put · $155 Last $0.05 Breakeven $154.95 Implied vol 62.5% Delta -0.007 ≈1% ITM Gamma 0.001 Theta -0.014 Vega 0.011 Open interest 78 Model this put
0	—	76.1%	0.97	—		$0.30	-0.012	62.6%	8	9
Call · $160 In the money Last — Breakeven — Implied vol 76.1% Delta 0.97 ≈97% ITM Gamma 0.001 Theta -0.054 Vega 0.051 Open interest 0 Model this call Put · $160 Last $0.30 Breakeven $159.70 Implied vol 62.6% Delta -0.012 ≈1% ITM Gamma 0.001 Theta -0.023 Vega 0.026 Open interest 9 Model this put
0	—	65.8%	0.977	—		$0.40	-0.014	58.6%	5	10
Call · $165 In the money Last — Breakeven — Implied vol 65.8% Delta 0.977 ≈98% ITM Gamma 0.001 Theta -0.037 Vega 0.026 Open interest 0 Model this call Put · $165 Last $0.40 Breakeven $164.60 Implied vol 58.6% Delta -0.014 ≈1% ITM Gamma 0.001 Theta -0.025 Vega 0.027 Open interest 10 Model this put
0	—	60.8%	0.975	—		$0.26	-0.014	53%	1	10
Call · $170 In the money Last — Breakeven — Implied vol 60.8% Delta 0.975 ≈98% ITM Gamma 0.002 Theta -0.037 Vega 0.027 Open interest 0 Model this call Put · $170 Last $0.26 Breakeven $169.74 Implied vol 53% Delta -0.014 ≈1% ITM Gamma 0.001 Theta -0.022 Vega 0.027 Open interest 10 Model this put
0	—	55.6%	0.973	—		$0.45	-0.013	47.5%	1	61
Call · $175 In the money Last — Breakeven — Implied vol 55.6% Delta 0.973 ≈97% ITM Gamma 0.002 Theta -0.036 Vega 0.051 Open interest 0 Model this call Put · $175 Last $0.45 Breakeven $174.55 Implied vol 47.5% Delta -0.013 ≈1% ITM Gamma 0.001 Theta -0.019 Vega 0.028 Open interest 61 Model this put
1	1	0%	1	$41.49		$0.35	-0.025	48.4%	1	54
Call · $180 In the money Last $41.49 Breakeven $221.49 Implied vol 0% Delta 1 ≈100% ITM Gamma 0 Theta 0 Vega 0 Open interest 1 Model this call Put · $180 Last $0.35 Breakeven $179.65 Implied vol 48.4% Delta -0.025 ≈2% ITM Gamma 0.002 Theta -0.033 Vega 0.028 Open interest 54 Model this put
0	—	37.2%	0.99	—		$0.25	-0.027	44%	16	18
Call · $185 In the money Last — Breakeven — Implied vol 37.2% Delta 0.99 ≈99% ITM Gamma 0.002 Theta -0.01 Vega 0.022 Open interest 0 Model this call Put · $185 Last $0.25 Breakeven $184.75 Implied vol 44% Delta -0.027 ≈3% ITM Gamma 0.002 Theta -0.032 Vega 0.057 Open interest 18 Model this put
11	10	—	—	$39.98		$0.35	-0.033	40%	8	23
Call · $190 In the money Last $39.98 Breakeven $229.98 Implied vol — Delta — Gamma — Theta — Vega — Open interest 11 Model this call Put · $190 Last $0.35 Breakeven $189.65 Implied vol 40% Delta -0.033 ≈3% ITM Gamma 0.003 Theta -0.035 Vega 0.058 Open interest 23 Model this put
4	1	33.8%	0.97	$26.31		$0.40	-0.043	36.6%	32	35
Call · $195 In the money Last $26.31 Breakeven $221.31 Implied vol 33.8% Delta 0.97 ≈97% ITM Gamma 0.003 Theta -0.024 Vega 0.054 Open interest 4 Model this call Put · $195 Last $0.40 Breakeven $194.60 Implied vol 36.6% Delta -0.043 ≈4% ITM Gamma 0.004 Theta -0.039 Vega 0.059 Open interest 35 Model this put
10	1	33.5%	0.945	$26.60		$0.59	-0.058	34.1%	31	120
Call · $200 In the money Last $26.60 Breakeven $226.60 Implied vol 33.5% Delta 0.945 ≈94% ITM Gamma 0.005 Theta -0.041 Vega 0.059 Open interest 10 Model this call Put · $200 Last $0.59 Breakeven $199.41 Implied vol 34.1% Delta -0.058 ≈6% ITM Gamma 0.005 Theta -0.046 Vega 0.059 Open interest 120 Model this put
50	16	32.1%	0.862	$20.35		$1.31	-0.127	31%	30	669
Call · $210 In the money Last $20.35 Breakeven $230.35 Implied vol 32.1% Delta 0.862 ≈86% ITM Gamma 0.011 Theta -0.08 Vega 0.157 Open interest 50 Model this call Put · $210 Last $1.31 Breakeven $208.69 Implied vol 31% Delta -0.127 ≈13% ITM Gamma 0.011 Theta -0.076 Vega 0.158 Open interest 669 Model this put
217	32	29.2%	0.724	$12.52		$2.83	-0.248	25.4%	11	486
Call · $220 In the money Last $12.52 Breakeven $232.52 Implied vol 29.2% Delta 0.724 ≈72% ITM Gamma 0.018 Theta -0.112 Vega 0.211 Open interest 217 Model this call Put · $220 Last $2.83 Breakeven $217.17 Implied vol 25.4% Delta -0.248 ≈25% ITM Gamma 0.02 Theta -0.094 Vega 0.211 Open interest 486 Model this put
Underlying $229.74
819	52	26.4%	0.513	$6.30		$6.20	-0.486	24.7%	122	69
Call · $230 Last $6.30 Breakeven $236.30 Implied vol 26.4% Delta 0.513 ≈51% ITM Gamma 0.025 Theta -0.124 Vega 0.246 Open interest 819 Model this call Put · $230 In the money Last $6.20 Breakeven $223.80 Implied vol 24.7% Delta -0.486 ≈49% ITM Gamma 0.026 Theta -0.117 Vega 0.246 Open interest 69 Model this put
1.1k	64	25.3%	0.278	$2.30		$12.20	-0.731	24.1%	37	3
Call · $240 Last $2.30 Breakeven $242.30 Implied vol 25.3% Delta 0.278 ≈28% ITM Gamma 0.021 Theta -0.099 Vega 0.22 Open interest 1.1k Model this call Put · $240 In the money Last $12.20 Breakeven $227.80 Implied vol 24.1% Delta -0.731 ≈73% ITM Gamma 0.022 Theta -0.093 Vega 0.22 Open interest 3 Model this put
556	56	23.4%	0.099	$0.65		—	-0.888	24.5%	—	0
Call · $250 Last $0.65 Breakeven $250.65 Implied vol 23.4% Delta 0.099 ≈10% ITM Gamma 0.012 Theta -0.047 Vega 0.114 Open interest 556 Model this call Put · $250 In the money Last — Breakeven — Implied vol 24.5% Delta -0.888 ≈89% ITM Gamma 0.012 Theta -0.053 Vega 0.114 Open interest 0 Model this put
27	8	22.6%	0.023	$0.25		—	-0.977	22.5%	—	0
Call · $260 Last $0.25 Breakeven $260.25 Implied vol 22.6% Delta 0.023 ≈2% ITM Gamma 0.004 Theta -0.014 Vega 0.034 Open interest 27 Model this call Put · $260 In the money Last — Breakeven — Implied vol 22.5% Delta -0.977 ≈98% ITM Gamma 0.004 Theta -0.013 Vega 0.033 Open interest 0 Model this put
6	1	29.1%	0.022	$0.30		—	-0.969	31.5%	—	0
Call · $270 Last $0.30 Breakeven $270.30 Implied vol 29.1% Delta 0.022 ≈2% ITM Gamma 0.003 Theta -0.018 Vega 0.034 Open interest 6 Model this call Put · $270 In the money Last — Breakeven — Implied vol 31.5% Delta -0.969 ≈97% ITM Gamma 0.004 Theta -0.024 Vega 0.034 Open interest 0 Model this put
0	—	35.3%	0.021	—		—	-0.968	38.8%	—	0
Call · $280 Last — Breakeven — Implied vol 35.3% Delta 0.021 ≈2% ITM Gamma 0.002 Theta -0.021 Vega 0.035 Open interest 0 Model this call Put · $280 In the money Last — Breakeven — Implied vol 38.8% Delta -0.968 ≈97% ITM Gamma 0.003 Theta -0.03 Vega 0.034 Open interest 0 Model this put
0	—	—	—	—		—	-0.975	42.9%	—	0
Call · $290 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $290 In the money Last — Breakeven — Implied vol 42.9% Delta -0.975 ≈97% ITM Gamma 0.002 Theta -0.026 Vega 0.034 Open interest 0 Model this put
0	—	—	—	—		—	-0.966	52.6%	—	0
Call · $300 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $300 In the money Last — Breakeven — Implied vol 52.6% Delta -0.966 ≈97% ITM Gamma 0.002 Theta -0.042 Vega 0.035 Open interest 0 Model this put
0	—	—	—	—		—	-0.975	54.9%	—	0
Call · $310 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $310 In the money Last — Breakeven — Implied vol 54.9% Delta -0.975 ≈97% ITM Gamma 0.002 Theta -0.033 Vega 0.035 Open interest 0 Model this put
0	—	—	—	—		—	-0.973	61.3%	—	0
Call · $320 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $320 In the money Last — Breakeven — Implied vol 61.3% Delta -0.973 ≈97% ITM Gamma 0.002 Theta -0.039 Vega 0.036 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 1063761 CUSIP 828806109 13F (30d) 362 filings 356 filers Visit website Investor relations