71 calls and 222 puts traded on Nov 4, 2026, 293 contracts in total. Open interest was 3.54K contracts. Over the past 30 days, volume averaged 97 contracts per day. The CIGI option volume chart shows volume by strike and expiration date.

Colliers International IV rank is 8, so its 30-day implied volatility of 31.7% is near the bottom of its one-year range. Over the past year it ranged from 18.3% on Dec 24, 2025 to 176.7% on Jul 17, 2026. See the CIGI implied volatility history for a longer view.

The Colliers International put/call volume ratio was 3.13 on Nov 4, 2026, so puts outnumber calls. The put/call open interest ratio was 0.63. The CIGI open interest chart shows calls and puts at each strike.

As of the Nov 4, 2026 close, max pain for Colliers International options about one week from expiration was $106.24, 7.9% above the $98.43 close. The CIGI max pain chart shows it for every expiration date.

Based on 7-day implied volatility of 29.5%, options price a move of about ±$4.02 (±4.1%) over the next week, a range of roughly $94.41 to $102.45 from the Nov 4, 2026 close. The CIGI expected move chart shows it for every expiration date.