<div id="readability-page-1"> Zscaler Inc (NASDAQ:ZS) stock has pulled back sharply from its Nov. 3 three-year high of $336.99, last seen down 0.6% to trade at $241.86, heading for its 12th loss in the last 14 trading sessions. Now looks like a good time to buy in on the dip, however, as the cybersecurity stock is testing a historically bullish trendline on the charts. Per Schaeffer's Senior Quantitative Analyst Rocky White, ZS is within 0.75 of the 320-day moving average's 20-day average true range (ATR), after remaining above it 80% of the time during the past two weeks and 80% of the last 42 trading sessions. This signal has occurred eight other times over the past 10 years, after which the stock was higher one month later 75% of the time with an average 10.5% gain. <img src="https://imageproxy.pbkrs.com/https://schaeffers-cdn.s3.amazonaws.com/images/default-source/schaeffers-cdn-images/2025/december/intraday/zs-dec2.png/query-c2Z2cnNuPTE0NmJiZjA2XzI?x-oss-process=image/auto-orient,1/interlace,1/resize,w_1440,h_1440/quality,q_95/format,jpg" width="578" height="326" original-src="https://imageproxy.pbkrs.com/https://schaeffers-cdn.s3.amazonaws.com/images/default-source/schaeffers-cdn-images/2025/december/intraday/zs-dec2.png/query-c2Z2cnNuPTE0NmJiZjA2XzI"/> A move of similar magnitude would halve ZS'S 20% quarterly drawdown. Another bullish case is Zscaler stock's 14-day relative strength index (RSI) of 13.3, firmly in &#34;oversold&#34; territory, which often precedes a short-term bounce. An unwinding of pessimism amongst options traders could give the shares a lift as well. Though calls are still outweighing puts on an absolute basis, ZS' 10-day and 50-day call/put volume ratios at the International Securities Exchange (ISE), Cboe Options Exchange (CBOE), and NASDAQ OMX PHLX (PHLX) ranks higher than 83% of 84% of readings from the past year, respectively. Amid a post-earnings volatility crush, options are affordable. ZS' Schaeffer's Volatility Index (SVI) of 39% which stands higher than just 16% of all other readings from the past year, implying that near-term option traders are pricing in relatively low volatility expectations. </div>

Zscaler Inc（纳斯达克代码：ZS）股票从三年高点大幅回落，目前交易价格为 241.86 美元。该股票正在测试一个历史上看涨的趋势线，暗示可能出现买入机会。历史数据显示，这一信号在 75% 的情况下会在一个月内带来 10.5% 的收益。该股票的 14 天相对强弱指数（RSI）显示其被超卖，通常预示着短期反弹。期权交易者的悲观情绪正在消退，目前由于低波动率预期，期权价格相对便宜

Zscaler 的 “逢低买入” 信号几乎从不出错