Options activity tied to Zscaler Inc. reached a total of 39,437 contracts as of 12:30 p.m. New York time on Tuesday, according to exchange data compiled by Bloomberg. The flow was overwhelmingly weighted toward calls, which made up 34,601 contracts, while puts accounted for 4,836 contracts.
Several individual option positions accounted for a substantial portion of the volume. The July 17, 2026 $157.50 call was the single largest line by contracts, totaling 6,228 contracts, with associated open interest recorded at 118 contracts.
A call spread involving options that expire on February 19, 2027 contributed 3,884 contracts to the total. That spread comprised 1,942 contracts for the $115 call, which showed an open interest of two contracts, and 1,942 contracts for the $120 call, with open interest listed at one contract.
Two August 21, 2026 expirations also featured prominently. The $200 call registered 3,760 contracts in volume, with open interest on that strike reported at 2,139 contracts. The $175 call for the same August 21, 2026 expiration recorded 2,121 contracts, with 745 contracts of open interest.
Additional notable activity included the July 17, 2026 $165 call, which accounted for 1,791 contracts and showed open interest of 962 contracts.
Summary of the largest reported option lines by contracts and their open interest:
- July 17, 2026 $157.50 call - 6,228 contracts; open interest 118
- Feb 19, 2027 call spread - 3,884 contracts total (1,942 at $115, OI 2; 1,942 at $120, OI 1)
- Aug 21, 2026 $200 call - 3,760 contracts; open interest 2,139
- Aug 21, 2026 $175 call - 2,121 contracts; open interest 745
- July 17, 2026 $165 call - 1,791 contracts; open interest 962
The distribution of contracts in this snapshot shows a marked skew toward call options over puts in total volume. The concentration in specific mid-2026 expirations and a structured spread into early 2027 highlight where the largest blocks of market participants have positioned themselves as of the midday reporting.
Data cited in this piece come from exchange records compiled by Bloomberg and reflect activity through 12:30 p.m. New York time on Tuesday. No additional trading details, motivations, or counterparty information are available from the dataset presented here.