| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | AMBA | SPY | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 · ytd | −9.6% | −5.8% | −14.7% | +33.7% | +4.9% | +18.9% | −19.4% | — | — | — | — | — | −2.3% | +7.5% | −9.9pp |
| 2025 | +5.5% | −19.9% | −18.1% | −4.6% | +9.7% | +25.5% | +0.0% | +24.8% | +0.0% | +3.3% | −13.0% | −4.5% | −2.6% | +17.7% | −20.3pp |
| 2024 | −14.2% | +6.3% | −9.1% | −9.5% | +26.7% | −7.4% | −2.4% | +13.4% | −5.5% | −0.4% | +27.3% | +1.7% | +18.7% | +24.9% | −6.2pp |
| 2023 | +9.3% | +5.0% | −17.9% | −19.9% | +16.7% | +15.7% | −0.3% | −25.5% | −14.7% | −15.2% | +30.5% | +4.4% | −25.5% | +26.2% | −51.6pp |
| 2022 | −30.9% | −0.3% | −24.9% | −21.8% | +3.8% | −23.2% | +32.2% | −21.6% | −17.2% | −2.6% | +35.6% | +10.8% | −59.5% | −18.2% | −41.3pp |
| 2021 | +2.8% | +19.2% | −10.8% | −2.9% | +3.0% | +6.2% | −7.6% | +5.2% | +50.4% | +19.3% | −3.4% | +13.0% | +121.0% | +28.7% | +92.2pp |
| 2020 | −2.3% | +0.5% | −18.3% | +8.3% | +7.9% | −19.3% | −1.1% | +16.4% | −1.0% | +4.8% | +42.9% | +17.5% | +51.6% | +18.3% | +33.3pp |
| 2019 | +8.6% | +6.2% | +7.0% | +16.0% | −24.4% | +16.4% | +13.2% | +11.9% | +12.5% | −16.2% | +4.0% | +10.6% | +73.1% | +31.2% | +41.9pp |
| 2018 | −14.2% | −4.6% | +1.9% | −4.9% | +4.9% | −21.0% | +1.5% | −2.2% | +1.0% | −10.1% | +15.0% | −12.5% | −40.5% | −4.6% | −35.9pp |
| 2017 | −8.4% | +18.8% | −7.2% | +2.8% | +4.1% | −17.1% | +3.1% | +8.7% | −9.9% | +15.2% | −3.8% | +8.3% | +8.5% | +21.7% | −13.2pp |
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. AMBA 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.
