SLG · Sl Green Realty Corp

Track SLG — free

$56.09 -1.54 (-2.67%) At close · Aug 14

Market Cap

$4.01B

71.12M

Options Chain

Underlying $56.09 · at close Aug 14, 2026 Options Calculator

Positioning

Aug 21, 2026 · 6 days to expiry · 40 contracts · mixed snapshot sessions · Mar 31, 2026–Aug 14, 2026; 7 unknown

Put / call OI

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dated and unknown snapshot sessions

Open interest

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dated and unknown snapshot sessions

Volume

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dated and unknown snapshot sessions

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 6d Sep 18 34d Oct 16 62d Nov 20 97d Dec 18 125d Jan 15 153d Feb 19 188d Jan 21 524d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	565.7%	0.961	—		$0.25	-0.029	507.4%	1	9
Call · $20 In the money Snapshot session Unknown Last — Breakeven — Implied vol 565.7% Delta 0.961 ≈96% ITM Gamma 0.002 Theta -0.274 Vega 0.007 Open interest 0 Model this call Put · $20 Snapshot session Jul 9, 2026 Last $0.25 Breakeven $19.75 Implied vol 507.4% Delta -0.029 ≈3% ITM Gamma 0.002 Theta -0.199 Vega 0.004 Open interest 9 Model this put
0	—	506.6%	0.957	—		$0.25	-0.028	428.3%	1	4
Call · $22.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol 506.6% Delta 0.957 ≈96% ITM Gamma 0.002 Theta -0.27 Vega 0.008 Open interest 0 Model this call Put · $22.5 Snapshot session Jul 9, 2026 Last $0.25 Breakeven $22.25 Implied vol 428.3% Delta -0.028 ≈3% ITM Gamma 0.002 Theta -0.161 Vega 0.005 Open interest 4 Model this put
0	—	454.4%	0.951	—		$0.05	-0.015	318.6%	7	21
Call · $25 In the money Snapshot session Unknown Last — Breakeven — Implied vol 454.4% Delta 0.951 ≈95% ITM Gamma 0.003 Theta -0.266 Vega 0.008 Open interest 0 Model this call Put · $25 Snapshot session Jul 23, 2026 Last $0.05 Breakeven $24.95 Implied vol 318.6% Delta -0.015 ≈2% ITM Gamma 0.002 Theta -0.072 Vega 0.002 Open interest 21 Model this put
0	—	407.5%	0.945	—		$1.00	-0.035	344.7%	3	4
Call · $27.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol 407.5% Delta 0.945 ≈95% ITM Gamma 0.004 Theta -0.261 Vega 0.009 Open interest 0 Model this call Put · $27.5 Snapshot session Apr 14, 2026 Last $1.00 Breakeven $26.50 Implied vol 344.7% Delta -0.035 ≈3% ITM Gamma 0.003 Theta -0.157 Vega 0.005 Open interest 4 Model this put
0	1	365.1%	0.939	$9.14		$0.11	-0.025	271.8%	1	89
Call · $30 In the money Snapshot session Mar 31, 2026 Last $9.14 Breakeven $39.14 Implied vol 365.1% Delta 0.939 ≈94% ITM Gamma 0.004 Theta -0.255 Vega 0.009 Open interest 0 Model this call Put · $30 Snapshot session Jul 22, 2026 Last $0.11 Breakeven $29.89 Implied vol 271.8% Delta -0.025 ≈3% ITM Gamma 0.003 Theta -0.095 Vega 0.005 Open interest 89 Model this put
0	85	331.4%	0.93	$19.90		$0.05	-0.022	226.9%	3	86
Call · $32.5 In the money Snapshot session Jun 29, 2026 Last $19.90 Breakeven $52.40 Implied vol 331.4% Delta 0.93 ≈93% ITM Gamma 0.006 Theta -0.259 Vega 0.01 Open interest 0 Model this call Put · $32.5 Snapshot session Jul 24, 2026 Last $0.05 Breakeven $32.45 Implied vol 226.9% Delta -0.022 ≈2% ITM Gamma 0.003 Theta -0.07 Vega 0.003 Open interest 86 Model this put
1	1	290.5%	0.924	$14.13		$0.05	-0.035	216%	1	136
Call · $35 In the money Snapshot session Jul 13, 2026 Last $14.13 Breakeven $49.13 Implied vol 290.5% Delta 0.924 ≈92% ITM Gamma 0.007 Theta -0.243 Vega 0.01 Open interest 1 Model this call Put · $35 Snapshot session Jul 27, 2026 Last $0.05 Breakeven $34.95 Implied vol 216% Delta -0.035 ≈3% ITM Gamma 0.005 Theta -0.098 Vega 0.006 Open interest 136 Model this put
12	1	266.9%	0.909	$14.39		$0.05	-0.037	185%	3	312
Call · $37.5 In the money Snapshot session Jun 29, 2026 Last $14.39 Breakeven $51.89 Implied vol 266.9% Delta 0.909 ≈91% ITM Gamma 0.008 Theta -0.257 Vega 0.01 Open interest 12 Model this call Put · $37.5 Snapshot session Aug 10, 2026 Last $0.05 Breakeven $37.45 Implied vol 185% Delta -0.037 ≈4% ITM Gamma 0.006 Theta -0.088 Vega 0.006 Open interest 312 Model this put
68	4	226.5%	0.903	$14.09		$0.08	-0.028	144.2%	1	173
Call · $40 In the money Snapshot session Jul 29, 2026 Last $14.09 Breakeven $54.09 Implied vol 226.5% Delta 0.903 ≈90% ITM Gamma 0.01 Theta -0.229 Vega 0.011 Open interest 68 Model this call Put · $40 Snapshot session Aug 7, 2026 Last $0.08 Breakeven $39.92 Implied vol 144.2% Delta -0.028 ≈3% ITM Gamma 0.006 Theta -0.055 Vega 0.006 Open interest 173 Model this put
127	9	202.1%	0.882	$11.20		$0.05	-0.137	223%	3	996
Call · $42.5 In the money Snapshot session Jul 28, 2026 Last $11.20 Breakeven $53.70 Implied vol 202.1% Delta 0.882 ≈88% ITM Gamma 0.013 Theta -0.234 Vega 0.017 Open interest 127 Model this call Put · $42.5 Snapshot session Aug 7, 2026 Last $0.05 Breakeven $42.45 Implied vol 223% Delta -0.137 ≈14% ITM Gamma 0.013 Theta -0.288 Vega 0.017 Open interest 996 Model this put
312	16	170.5%	0.864	$10.95		$0.10	-0.05	107.1%	1	528
Call · $45 In the money Snapshot session Aug 11, 2026 Last $10.95 Breakeven $55.95 Implied vol 170.5% Delta 0.864 ≈86% ITM Gamma 0.018 Theta -0.217 Vega 0.017 Open interest 312 Model this call Put · $45 Snapshot session Aug 14, 2026 Last $0.10 Breakeven $44.90 Implied vol 107.1% Delta -0.05 ≈5% ITM Gamma 0.013 Theta -0.065 Vega 0.007 Open interest 528 Model this put
176	10	121.2%	0.871	$8.98		$0.10	-0.118	115.8%	5	239
Call · $47.5 In the money Snapshot session Aug 14, 2026 Last $8.98 Breakeven $56.48 Implied vol 121.2% Delta 0.871 ≈87% ITM Gamma 0.024 Theta -0.149 Vega 0.018 Open interest 176 Model this call Put · $47.5 Snapshot session Aug 12, 2026 Last $0.10 Breakeven $47.40 Implied vol 115.8% Delta -0.118 ≈12% ITM Gamma 0.024 Theta -0.137 Vega 0.018 Open interest 239 Model this put
219	11	115.3%	0.8	$6.30		$0.11	-0.054	56.4%	51	534
Call · $50 In the money Snapshot session Aug 12, 2026 Last $6.30 Breakeven $56.30 Implied vol 115.3% Delta 0.8 ≈80% ITM Gamma 0.034 Theta -0.191 Vega 0.018 Open interest 219 Model this call Put · $50 Snapshot session Aug 14, 2026 Last $0.11 Breakeven $49.89 Implied vol 56.4% Delta -0.054 ≈5% ITM Gamma 0.027 Theta -0.037 Vega 0.007 Open interest 534 Model this put
708	29	73.7%	0.769	$4.56		$0.30	-0.136	47.6%	1	104
Call · $52.5 In the money Snapshot session Aug 14, 2026 Last $4.56 Breakeven $57.06 Implied vol 73.7% Delta 0.769 ≈77% ITM Gamma 0.057 Theta -0.132 Vega 0.025 Open interest 708 Model this call Put · $52.5 Snapshot session Aug 13, 2026 Last $0.30 Breakeven $52.20 Implied vol 47.6% Delta -0.136 ≈14% ITM Gamma 0.063 Theta -0.062 Vega 0.019 Open interest 104 Model this put
274	2	41.9%	0.65	$3.00		$0.65	-0.332	36.3%	21	64
Call · $55 In the money Snapshot session Aug 13, 2026 Last $3.00 Breakeven $58.00 Implied vol 41.9% Delta 0.65 ≈65% ITM Gamma 0.123 Theta -0.092 Vega 0.029 Open interest 274 Model this call Put · $55 Snapshot session Aug 14, 2026 Last $0.65 Breakeven $54.35 Implied vol 36.3% Delta -0.332 ≈33% ITM Gamma 0.138 Theta -0.079 Vega 0.025 Open interest 64 Model this put
Underlying $56.09
102	7	45.2%	0.347	$1.30		$4.00	—	—	1	1
Call · $57.5 Snapshot session Aug 13, 2026 Last $1.30 Breakeven $58.80 Implied vol 45.2% Delta 0.347 ≈35% ITM Gamma 0.113 Theta -0.099 Vega 0.026 Open interest 102 Model this call Put · $57.5 In the money Snapshot session Jul 29, 2026 Last $4.00 Breakeven $53.50 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this put
354	4	46%	0.135	$0.45		$18.40	—	—	1	3
Call · $60 Snapshot session Aug 13, 2026 Last $0.45 Breakeven $60.45 Implied vol 46% Delta 0.135 ≈13% ITM Gamma 0.065 Theta -0.059 Vega 0.013 Open interest 354 Model this call Put · $60 In the money Snapshot session May 15, 2026 Last $18.40 Breakeven $41.60 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 Model this put
6	2	55.7%	0.07	$0.25		—	—	—	—	0
Call · $62.5 Snapshot session Aug 7, 2026 Last $0.25 Breakeven $62.75 Implied vol 55.7% Delta 0.07 ≈7% ITM Gamma 0.033 Theta -0.045 Vega 0.008 Open interest 6 Model this call Put · $62.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
186	1	104.3%	0.152	$0.55		—	—	—	—	0
Call · $65 Snapshot session Aug 13, 2026 Last $0.55 Breakeven $65.55 Implied vol 104.3% Delta 0.152 ≈15% ITM Gamma 0.031 Theta -0.146 Vega 0.021 Open interest 186 Model this call Put · $65 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
116	1	125.3%	0.102	$0.15		—	—	—	—	0
Call · $70 Snapshot session Jul 17, 2026 Last $0.15 Breakeven $70.15 Implied vol 125.3% Delta 0.102 ≈10% ITM Gamma 0.019 Theta -0.131 Vega 0.014 Open interest 116 Model this call Put · $70 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put

About this data

Each contract's last price, volume, greeks, implied volatility and open interest belongs to the snapshot session shown in its details; unknown means the provider omitted the timestamp. This chain has mixed snapshot sessions · Mar 31, 2026–Aug 14, 2026; 7 unknown. Cross-contract positioning totals are shown only when every returned row has the same known session. 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.

Key facts CIK 1040971 CUSIP 78440X887 13F (30d) 350 filings 338 filers Visit website Investor relations