| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | PANW | SPY | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 · ytd | −3.9% | −15.9% | +7.7% | +11.9% | +57.1% | +21.1% | −7.9% | — | — | — | — | — | +70.5% | +7.5% | +63.0pp |
| 2025 | +1.4% | +3.3% | −10.4% | +9.5% | +2.9% | +6.4% | −15.2% | +9.7% | +6.9% | +8.2% | −13.7% | −3.1% | +1.2% | +17.7% | −16.5pp |
| 2024 | +14.8% | −8.3% | −8.5% | +2.4% | +1.4% | +15.0% | −4.2% | +11.7% | −5.8% | +5.4% | +7.6% | −6.2% | +23.4% | +24.9% | −1.5pp |
| 2023 | +13.7% | +18.7% | +6.0% | −8.7% | +17.0% | +19.7% | −2.2% | −2.7% | −3.6% | +3.7% | +21.4% | −0.1% | +111.3% | +26.2% | +85.1pp |
| 2022 | −7.1% | +14.9% | +4.8% | −9.8% | −10.4% | −1.8% | +1.0% | +11.6% | −11.8% | +4.8% | −1.0% | −17.9% | −24.8% | −18.2% | −6.6pp |
| 2021 | −1.3% | +2.2% | −10.1% | +9.7% | +2.8% | +2.1% | +7.5% | +15.5% | +3.9% | +6.3% | +7.4% | +1.8% | +56.7% | +28.7% | +27.9pp |
| 2020 | +1.5% | −21.4% | −11.2% | +19.9% | +19.7% | −2.4% | +11.4% | +0.6% | −4.9% | −9.6% | +32.9% | +20.9% | +53.7% | +18.3% | +35.4pp |
| 2019 | +14.1% | +14.6% | −1.4% | +2.4% | −19.6% | +1.8% | +11.2% | −10.1% | +0.1% | +11.6% | −0.1% | +1.8% | +22.8% | +31.2% | −8.4pp |
| 2018 | +8.9% | +9.8% | +4.7% | +6.1% | +8.1% | −1.3% | −3.5% | +16.6% | −2.5% | −18.7% | −5.5% | +8.9% | +30.0% | −4.6% | +34.5pp |
| 2017 | +18.0% | +2.9% | −25.8% | −3.8% | +9.4% | +12.8% | −1.5% | +0.7% | +8.6% | +2.2% | −1.0% | −0.6% | +15.9% | +21.7% | −5.8pp |
A month’s return is its month-end close over the prior month-end’s, so a year’s figure is exactly the product of its twelve monthly cells — no separate annualisation, no resampling. A blank cell means no return exists for that month (the series had not started, or it is the very first month-end, which has nothing to be measured against). Blank is never zero.
Basis. PANW is on the total return (splits + dividends) basis, SPY on the total return (splits + dividends) basis. Both columns are on the same basis, so the Δ column is a like-for-like difference.
Partial years. A year marked “ytd” or “part” does not cover the full calendar year: either the stored history starts inside it (the figure is measured from the first month-end present) or the data stops before December (the figure runs through the last stored close). The row’s own tooltip names the exact boundary. It is never dressed up as a calendar-year return.
End of day. These are stored end-of-day closes, and the window is anchored on the LAST stored bar rather than today’s date — so the newest row ends where the data ends. Nothing here is intraday.
