CIGI · Colliers International Group Inc.

Track CIGI — free

$105.41 -0.38 (-0.36%) At close · Aug 14

Market Cap

$5.39B

51.10M

Options Chain

Underlying $105.41 · at close Aug 14, 2026 Options Calculator

Positioning

Aug 21, 2026 · 6 days to expiry · 56 contracts · mixed snapshot sessions · Dec 19, 2025–Aug 13, 2026; 27 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 Nov 20 97d Feb 19 188d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	—	—	—		—	-0.032	212.1%	—	0
Call · $65 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $65 Snapshot session Unknown Last — Breakeven — Implied vol 212.1% Delta -0.032 ≈3% ITM Gamma 0.002 Theta -0.163 Vega 0.011 Open interest 0 Model this put
0	—	—	—	—		—	-0.037	184%	—	0
Call · $70 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $70 Snapshot session Unknown Last — Breakeven — Implied vol 184% Delta -0.037 ≈4% ITM Gamma 0.003 Theta -0.158 Vega 0.012 Open interest 0 Model this put
0	—	—	—	—		$1.85	-0.042	157.8%	1	8
Call · $75 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $75 Snapshot session Jun 26, 2026 Last $1.85 Breakeven $73.15 Implied vol 157.8% Delta -0.042 ≈4% ITM Gamma 0.004 Theta -0.153 Vega 0.012 Open interest 8 Model this put
0	—	—	—	—		—	-0.053	137.5%	—	0
Call · $80 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $80 Snapshot session Unknown Last — Breakeven — Implied vol 137.5% Delta -0.053 ≈5% ITM Gamma 0.006 Theta -0.163 Vega 0.012 Open interest 0 Model this put
0	—	—	—	—		$2.85	-0.059	110.3%	1	3
Call · $85 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $85 Snapshot session Jun 26, 2026 Last $2.85 Breakeven $82.15 Implied vol 110.3% Delta -0.059 ≈6% ITM Gamma 0.008 Theta -0.142 Vega 0.022 Open interest 3 Model this put
2	2	—	—	$10.30		$2.10	-0.074	85.6%	1	63
Call · $90 In the money Snapshot session May 19, 2026 Last $10.30 Breakeven $100.30 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 Model this call Put · $90 Snapshot session Jul 24, 2026 Last $2.10 Breakeven $87.90 Implied vol 85.6% Delta -0.074 ≈7% ITM Gamma 0.012 Theta -0.129 Vega 0.023 Open interest 63 Model this put
3	1	—	—	$6.05		$0.20	-0.127	72.2%	10	682
Call · $95 In the money Snapshot session Jul 24, 2026 Last $6.05 Breakeven $101.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 Model this call Put · $95 Snapshot session Aug 13, 2026 Last $0.20 Breakeven $94.80 Implied vol 72.2% Delta -0.127 ≈13% ITM Gamma 0.021 Theta -0.163 Vega 0.035 Open interest 682 Model this put
6	2	—	—	$3.30		$4.20	-0.19	47%	1	1
Call · $100 In the money Snapshot session Aug 5, 2026 Last $3.30 Breakeven $103.30 Implied vol — Delta — Gamma — Theta — Vega — Open interest 6 Model this call Put · $100 Snapshot session Jul 27, 2026 Last $4.20 Breakeven $95.80 Implied vol 47% Delta -0.19 ≈19% ITM Gamma 0.041 Theta -0.137 Vega 0.036 Open interest 1 Model this put
75	300	40%	0.544	$2.00		$10.50	-0.46	48%	2	2
Call · $105 In the money Snapshot session Jul 16, 2026 Last $2.00 Breakeven $107.00 Implied vol 40% Delta 0.544 ≈54% ITM Gamma 0.071 Theta -0.178 Vega 0.056 Open interest 75 Model this call Put · $105 Snapshot session Feb 13, 2026 Last $10.50 Breakeven $94.50 Implied vol 48% Delta -0.46 ≈46% ITM Gamma 0.06 Theta -0.204 Vega 0.056 Open interest 2 Model this put
Underlying $105.41
500	1	56%	0.301	$0.50		$8.00	-0.866	28.8%	5	7
Call · $110 Snapshot session Jul 30, 2026 Last $0.50 Breakeven $110.50 Implied vol 56% Delta 0.301 ≈30% ITM Gamma 0.044 Theta -0.214 Vega 0.05 Open interest 500 Model this call Put · $110 In the money Snapshot session Aug 12, 2026 Last $8.00 Breakeven $102.00 Implied vol 28.8% Delta -0.866 ≈87% ITM Gamma 0.056 Theta -0.062 Vega 0.026 Open interest 7 Model this put
4	1	52.9%	0.118	$1.80		$16.97	-0.918	46.5%	180	0
Call · $115 Snapshot session May 6, 2026 Last $1.80 Breakeven $116.80 Implied vol 52.9% Delta 0.118 ≈12% ITM Gamma 0.027 Theta -0.114 Vega 0.026 Open interest 4 Model this call Put · $115 In the money Snapshot session Jul 21, 2026 Last $16.97 Breakeven $98.03 Implied vol 46.5% Delta -0.918 ≈92% ITM Gamma 0.024 Theta -0.071 Vega 0.026 Open interest 0 Model this put
4	1	70.7%	0.093	$1.25		$9.80	-0.919	68.2%	2	0
Call · $120 Snapshot session May 14, 2026 Last $1.25 Breakeven $121.25 Implied vol 70.7% Delta 0.093 ≈9% ITM Gamma 0.017 Theta -0.128 Vega 0.027 Open interest 4 Model this call Put · $120 In the money Snapshot session Apr 20, 2026 Last $9.80 Breakeven $110.20 Implied vol 68.2% Delta -0.919 ≈92% ITM Gamma 0.016 Theta -0.105 Vega 0.026 Open interest 0 Model this put
1	1	87.7%	0.079	$27.90		$23.00	-0.931	84%	5	55
Call · $125 Snapshot session Dec 19, 2025 Last $27.90 Breakeven $152.90 Implied vol 87.7% Delta 0.079 ≈8% ITM Gamma 0.012 Theta -0.142 Vega 0.027 Open interest 1 Model this call Put · $125 In the money Snapshot session Aug 12, 2026 Last $23.00 Breakeven $102.00 Implied vol 84% Delta -0.931 ≈93% ITM Gamma 0.012 Theta -0.114 Vega 0.016 Open interest 55 Model this put
1	2	101.8%	0.07	$22.42		$18.95	-0.953	91.4%	1	0
Call · $130 Snapshot session Jan 12, 2026 Last $22.42 Breakeven $152.42 Implied vol 101.8% Delta 0.07 ≈7% ITM Gamma 0.009 Theta -0.148 Vega 0.016 Open interest 1 Model this call Put · $130 In the money Snapshot session Mar 9, 2026 Last $18.95 Breakeven $111.05 Implied vol 91.4% Delta -0.953 ≈95% ITM Gamma 0.008 Theta -0.09 Vega 0.016 Open interest 0 Model this put
4	8	114.9%	0.063	$19.00		$6.30	-0.958	104.8%	2	0
Call · $135 Snapshot session Jan 12, 2026 Last $19.00 Breakeven $154.00 Implied vol 114.9% Delta 0.063 ≈6% ITM Gamma 0.008 Theta -0.153 Vega 0.016 Open interest 4 Model this call Put · $135 In the money Snapshot session Jan 20, 2026 Last $6.30 Breakeven $128.70 Implied vol 104.8% Delta -0.958 ≈96% ITM Gamma 0.006 Theta -0.094 Vega 0.016 Open interest 0 Model this put
0	—	—	—	—		$28.56	-0.962	117.7%	1	0
Call · $140 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $140 In the money Snapshot session Feb 17, 2026 Last $28.56 Breakeven $111.44 Implied vol 117.7% Delta -0.962 ≈96% ITM Gamma 0.005 Theta -0.099 Vega 0.016 Open interest 0 Model this put
0	1	—	—	$1.88		$28.01	-0.964	129.9%	1	0
Call · $145 Snapshot session Feb 13, 2026 Last $1.88 Breakeven $146.88 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $145 In the money Snapshot session Mar 4, 2026 Last $28.01 Breakeven $116.99 Implied vol 129.9% Delta -0.964 ≈96% ITM Gamma 0.005 Theta -0.104 Vega 0.008 Open interest 0 Model this put
0	—	—	—	—		—	-0.967	140.1%	—	0
Call · $150 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $150 In the money Snapshot session Unknown Last — Breakeven — Implied vol 140.1% Delta -0.967 ≈97% ITM Gamma 0.004 Theta -0.105 Vega 0.008 Open interest 0 Model this put
0	5	—	—	$0.20		$15.40	-0.951	165.6%	2	0
Call · $155 Snapshot session Apr 23, 2026 Last $0.20 Breakeven $155.20 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $155 In the money Snapshot session Jan 12, 2026 Last $15.40 Breakeven $139.60 Implied vol 165.6% Delta -0.951 ≈95% ITM Gamma 0.004 Theta -0.173 Vega 0.017 Open interest 0 Model this put
5	5	—	—	$2.39		—	-0.945	182.4%	—	0
Call · $160 Snapshot session Apr 24, 2026 Last $2.39 Breakeven $162.39 Implied vol — Delta — Gamma — Theta — Vega — Open interest 5 Model this call Put · $160 In the money Snapshot session Unknown Last — Breakeven — Implied vol 182.4% Delta -0.945 ≈95% ITM Gamma 0.004 Theta -0.208 Vega 0.017 Open interest 0 Model this put
0	—	—	—	—		—	-0.951	190.3%	—	0
Call · $165 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $165 In the money Snapshot session Unknown Last — Breakeven — Implied vol 190.3% Delta -0.951 ≈95% ITM Gamma 0.004 Theta -0.198 Vega 0.018 Open interest 0 Model this put
0	—	—	—	—		$57.00	-0.953	200.7%	1	0
Call · $170 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $170 In the money Snapshot session Feb 13, 2026 Last $57.00 Breakeven $113.00 Implied vol 200.7% Delta -0.953 ≈95% ITM Gamma 0.004 Theta -0.203 Vega 0.018 Open interest 0 Model this put
0	—	—	—	—		—	-0.974	186.8%	—	0
Call · $175 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $175 In the money Snapshot session Unknown Last — Breakeven — Implied vol 186.8% Delta -0.974 ≈97% ITM Gamma 0.002 Theta -0.114 Vega 0.009 Open interest 0 Model this put
0	—	—	—	—		—	-0.956	220.6%	—	0
Call · $180 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $180 In the money Snapshot session Unknown Last — Breakeven — Implied vol 220.6% Delta -0.956 ≈96% ITM Gamma 0.003 Theta -0.212 Vega 0.018 Open interest 0 Model this put
0	—	—	—	—		—	-0.958	230.2%	—	0
Call · $185 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $185 In the money Snapshot session Unknown Last — Breakeven — Implied vol 230.2% Delta -0.958 ≈96% ITM Gamma 0.003 Theta -0.217 Vega 0.017 Open interest 0 Model this put
0	—	—	—	—		—	-0.972	217.1%	—	0
Call · $190 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $190 In the money Snapshot session Unknown Last — Breakeven — Implied vol 217.1% Delta -0.972 ≈97% ITM Gamma 0.002 Theta -0.139 Vega 0.009 Open interest 0 Model this put
0	—	—	—	—		—	-0.977	219.6%	—	0
Call · $195 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $195 In the money Snapshot session Unknown Last — Breakeven — Implied vol 219.6% Delta -0.977 ≈98% ITM Gamma 0.002 Theta -0.121 Vega 0.009 Open interest 0 Model this put
0	—	—	—	—		—	-0.981	221.9%	—	0
Call · $200 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $200 In the money Snapshot session Unknown Last — Breakeven — Implied vol 221.9% Delta -0.981 ≈98% ITM Gamma 0.002 Theta -0.101 Vega 0.009 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 · Dec 19, 2025–Aug 13, 2026; 27 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 913353 CUSIP 194693107 13F (30d) 183 filings 182 filers Visit website Investor relations