Zscaler (ZS) Historical Monthly & Quarterly Returns
Dividend-adjusted returns by month and quarter. Compare performance across years.
Zscaler
ZS
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 11.1% | 26.5% | 4.6% | 4.0% | — | — | — | — | — | — | — | — |
| 2025 | +12.3% | 3.1% | +1.1% | +14.0% | +21.9% | +13.9% | 9.0% | 3.0% | +8.2% | +10.5% | 24.1% | 10.6% |
| 2024 | +6.4% | +2.7% | 20.4% | 10.2% | 1.7% | +13.1% | 6.7% | +11.5% | 14.5% | +5.8% | +14.3% | 12.7% |
| 2023 | +11.0% | +5.6% | 10.9% | 22.9% | +50.4% | +8.0% | +9.6% | 2.7% | 0.3% | +2.0% | +24.5% | +12.2% |
| 2022 | 20.0% | 7.0% | +0.9% | 16.0% | 24.5% | 2.3% | +3.7% | +2.7% | +3.2% | 6.2% | 13.4% | 16.1% |
| 2021 | 0.0% | +2.7% | 16.3% | +9.3% | +3.5% | +11.3% | +9.2% | +18.0% | 5.8% | +21.6% | +8.8% | 7.4% |
| 2020 | +20.6% | 7.3% | +17.1% | +10.2% | +46.2% | +11.6% | +18.6% | +10.4% | 1.8% | 3.5% | +14.7% | +28.2% |
| 2019 | +23.4% | +2.7% | +42.8% | 3.7% | +0.5% | +11.7% | +10.0% | 18.4% | 31.2% | 6.9% | +18.5% | 10.8% |
| 2018 | — | — | 14.9% | +6.5% | 12.1% | +36.1% | 1.2% | +21.2% | 4.7% | 11.0% | +8.2% | 0.1% |
| Avg | +5.3% | 3.8% | 0.6% | 1.9% | +10.5% | +12.9% | +4.3% | +5.0% | 5.9% | +1.5% | +6.4% | 2.2% |
| Median | +8.7% | 0.2% | 4.6% | 3.7% | +2.0% | +11.7% | +6.4% | +6.5% | 3.3% | 0.8% | +11.5% | 9.0% |
| Win % | 63% | 50% | 44% | 44% | 63% | 88% | 63% | 63% | 25% | 50% | 75% | 25% |
2026
Jan11.1%
Feb26.5%
Mar4.6%
Apr4.0%
May—
Jun—
Jul—
Aug—
Sep—
Oct—
Nov—
Dec—
2025
Jan+12.3%
Feb3.1%
Mar+1.1%
Apr+14.0%
May+21.9%
Jun+13.9%
Jul9.0%
Aug3.0%
Sep+8.2%
Oct+10.5%
Nov24.1%
Dec10.6%
2024
Jan+6.4%
Feb+2.7%
Mar20.4%
Apr10.2%
May1.7%
Jun+13.1%
Jul6.7%
Aug+11.5%
Sep14.5%
Oct+5.8%
Nov+14.3%
Dec12.7%
2023
Jan+11.0%
Feb+5.6%
Mar10.9%
Apr22.9%
May+50.4%
Jun+8.0%
Jul+9.6%
Aug2.7%
Sep0.3%
Oct+2.0%
Nov+24.5%
Dec+12.2%
2022
Jan20.0%
Feb7.0%
Mar+0.9%
Apr16.0%
May24.5%
Jun2.3%
Jul+3.7%
Aug+2.7%
Sep+3.2%
Oct6.2%
Nov13.4%
Dec16.1%
2021
Jan0.0%
Feb+2.7%
Mar16.3%
Apr+9.3%
May+3.5%
Jun+11.3%
Jul+9.2%
Aug+18.0%
Sep5.8%
Oct+21.6%
Nov+8.8%
Dec7.4%
2020
Jan+20.6%
Feb7.3%
Mar+17.1%
Apr+10.2%
May+46.2%
Jun+11.6%
Jul+18.6%
Aug+10.4%
Sep1.8%
Oct3.5%
Nov+14.7%
Dec+28.2%
2019
Jan+23.4%
Feb+2.7%
Mar+42.8%
Apr3.7%
May+0.5%
Jun+11.7%
Jul+10.0%
Aug18.4%
Sep31.2%
Oct6.9%
Nov+18.5%
Dec10.8%
2018
Jan—
Feb—
Mar14.9%
Apr+6.5%
May12.1%
Jun+36.1%
Jul1.2%
Aug+21.2%
Sep4.7%
Oct11.0%
Nov+8.2%
Dec0.1%
Avg
Jan+5.3%
Feb3.8%
Mar0.6%
Apr1.9%
May+10.5%
Jun+12.9%
Jul+4.3%
Aug+5.0%
Sep5.9%
Oct+1.5%
Nov+6.4%
Dec2.2%
Median
Jan+8.7%
Feb0.2%
Mar4.6%
Apr3.7%
May+2.0%
Jun+11.7%
Jul+6.4%
Aug+6.5%
Sep3.3%
Oct0.8%
Nov+11.5%
Dec9.0%
Win %
Jan63%
Feb50%
Mar44%
Apr44%
May63%
Jun88%
Jul63%
Aug63%
Sep25%
Oct50%
Nov75%
Dec25%
Frequently asked questions
What is the best performing month for Zscaler (ZS) stock?
- Historically, June is the best performing month for Zscaler (ZS) stock with an average return of +12.91%.
What is the worst performing month for Zscaler (ZS) stock?
- Historically, September is the worst performing month for Zscaler (ZS) stock with an average return of 5.88%.
What is the best performing quarter for Zscaler (ZS) stock?
- Historically, Q2 is the best performing quarter for Zscaler (ZS) stock with an average return of +20.27%.
What is the worst performing quarter for Zscaler (ZS) stock?
- Historically, Q1 is the worst performing quarter for Zscaler (ZS) stock with an average return of +2.40%.
What is the best performing year for Zscaler (ZS) stock?
- Historically, 2020 is the best performing year for Zscaler (ZS) stock with a return of +329.48%.
What is the worst performing year for Zscaler (ZS) stock?
- Historically, 2022 is the worst performing year for Zscaler (ZS) stock with a return of 65.18%.
Which month has the highest win rate for Zscaler (ZS) stock?
- Historically, June has the highest win rate for Zscaler (ZS) stock — positive in 88% of years.
Which month has the lowest win rate for Zscaler (ZS) stock?
- Historically, September has the lowest win rate for Zscaler (ZS) stock — positive in 25% of years.
Which quarter has the highest win rate for Zscaler (ZS) stock?
- Historically, Q2 has the highest win rate for Zscaler (ZS) stock — positive in 67% of years.
Which quarter has the lowest win rate for Zscaler (ZS) stock?
- Historically, Q1 has the lowest win rate for Zscaler (ZS) stock — positive in 44% of years.
Data & methodology
How are returns calculated?
- We compare the closing price at the end of each period (month or quarter) with the closing price at the end of the previous period. The return is the percentage change. All prices are adjusted for dividends and stock splits. Based on historical prices from our data provider.
What is average vs median?
- Average is the arithmetic mean of returns for each period across years. Median is the middle value. Both exclude empty cells. Use median to reduce impact of outliers.
What does the heatmap show?
- Green cells indicate positive returns, red cells indicate negative returns. The darker the color, the stronger the move. Average and Median rows summarize each column across years.
What is Win %?
- Percentage of years when the period had a positive return. For example, 80% for January means January was positive in 80% of the years in the selected range.
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