44 calls and 18 puts traded on Nov 4, 2026, 62 contracts in total. Open interest was 877 contracts. Over the past 30 days, volume averaged 54 contracts per day. The SITE option volume chart shows volume by strike and expiration date.

SiteOne Landscape Supply IV rank is 8, so its 30-day implied volatility of 40.5% is near the bottom of its one-year range. Over the past year it ranged from 28.9% on Nov 28, 2025 to 175.6% on Oct 16, 2026. See the SITE implied volatility history for a longer view.

The SiteOne Landscape Supply put/call volume ratio was 0.41 on Nov 4, 2026, so calls outnumber puts. The put/call open interest ratio was 1.13. The SITE open interest chart shows calls and puts at each strike.

As of the Nov 4, 2026 close, max pain for SiteOne Landscape Supply options about one week from expiration was $100.61, 14.9% below the $118.16 close. The SITE max pain chart shows it for every expiration date.

Based on 7-day implied volatility of 43.0%, options price a move of about ±$7.04 (±6.0%) over the next week, a range of roughly $111.12 to $125.20 from the Nov 4, 2026 close. The SITE expected move chart shows it for every expiration date.