Brett Crowther points to a $15 channel this week for Zscaler (ZS). Between $163 to $178, he shows the various factors potentially offering some "bullishness in the short-term" amid some overall weakness in the markets. On the longer-term basis, Brett shows the $165 level as a support area dating back to March 2025. He adds, "we've got a security company trying to secure support at $165."