| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | CHGG | SPY | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 · ytd | −17.3% | −14.5% | +12.8% | +47.0% | +20.2% | −22.9% | +3.0% | — | — | — | — | — | +11.8% | +7.5% | +4.3pp |
| 2025 | −4.3% | −29.2% | −41.4% | +14.2% | +39.7% | +18.6% | +8.3% | +12.2% | +2.7% | −29.8% | −8.8% | −3.8% | −42.2% | +17.7% | −60.0pp |
| 2024 | −13.3% | −9.2% | −15.3% | −31.7% | −25.9% | −17.5% | +7.9% | −36.7% | −18.1% | −9.6% | +31.9% | −23.7% | −85.8% | +24.9% | −110.7pp |
| 2023 | −17.8% | −23.5% | +2.6% | +10.3% | −50.1% | −1.1% | +14.1% | +0.8% | −12.6% | −15.6% | +31.9% | +14.4% | −55.0% | +26.2% | −81.2pp |
| 2022 | −13.8% | +18.1% | +16.0% | −31.8% | −21.3% | −3.5% | +13.4% | −7.6% | +7.1% | +2.4% | +38.3% | −15.3% | −17.7% | −18.2% | +0.5pp |
| 2021 | +5.5% | +1.3% | −11.3% | +5.5% | −14.9% | +8.1% | +6.6% | −6.1% | −18.3% | −12.6% | −53.1% | +10.2% | −66.0% | +28.7% | −94.7pp |
| 2020 | +8.8% | −4.9% | −8.7% | +19.5% | +42.9% | +10.1% | +20.4% | −8.9% | −3.1% | +2.8% | +6.1% | +15.9% | +138.3% | +18.3% | +119.9pp |
| 2019 | +23.9% | +12.5% | −3.8% | −6.5% | +5.1% | +3.0% | +16.4% | −11.8% | −24.4% | +2.4% | +26.5% | −2.2% | +33.4% | +31.2% | +2.2pp |
| 2018 | +6.1% | +15.0% | +3.8% | +12.3% | +20.5% | −0.6% | −0.3% | +16.9% | −12.2% | −4.0% | +2.5% | +1.7% | +74.1% | −4.6% | +78.7pp |
| 2017 | −2.6% | +9.9% | +6.8% | +6.8% | +33.2% | +2.4% | +12.7% | +2.5% | +4.6% | +4.5% | −1.9% | +7.3% | +121.1% | +21.7% | +99.4pp |
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. CHGG 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.
