| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | ACHR | SPY | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 · ytd | −4.4% | −1.0% | −27.4% | +11.0% | +18.6% | −30.5% | +0.2% | — | — | — | — | — | −37.0% | +9.3% | −46.3pp |
| 2025 | −3.1% | −6.0% | −19.9% | +17.2% | +21.1% | +7.5% | −7.6% | −10.8% | +7.0% | +17.1% | −30.6% | −3.5% | −22.9% | +17.7% | −40.6pp |
| 2024 | −21.3% | +0.0% | −4.3% | −16.0% | −15.7% | +7.6% | +18.5% | −18.5% | −10.9% | +4.0% | +203.8% | +1.9% | +58.8% | +24.9% | +33.9pp |
| 2023 | +55.1% | +1.7% | −3.1% | −30.8% | +50.5% | +38.3% | +63.3% | +3.6% | −27.4% | −6.1% | +25.9% | +2.7% | +228.3% | +26.2% | +202.2pp |
| 2022 | −47.8% | +0.0% | +52.7% | −4.2% | −9.3% | −26.3% | +31.2% | −12.4% | −26.3% | +9.2% | −11.9% | −25.5% | −69.0% | −18.2% | −50.9pp |
| 2021 · part | — | — | — | — | — | — | — | — | — | −35.8% | +8.1% | −1.9% | −32.0% | +28.7% | −60.7pp |
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. ACHR 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.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Years ⓘ | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 5 | 5 | 5 |
| Positive ⓘ | 20% | 20% | 20% | 40% | 60% | 60% | 80% | 25% | 25% | 60% | 60% | 40% |
| Median | −4.4% | +0.0% | −4.3% | −4.2% | +18.6% | +7.5% | +18.5% | −11.6% | −18.6% | +4.0% | +8.1% | −1.9% |
| Best | +55.1% | +1.7% | +52.7% | +17.2% | +50.5% | +38.3% | +63.3% | +3.6% | +7.0% | +17.1% | +203.8% | +2.7% |
| Worst | −47.8% | −6.0% | −27.4% | −30.8% | −15.7% | −30.5% | −7.6% | −18.5% | −27.4% | −35.8% | −30.6% | −25.5% |
| vs SPY ⓘ | −5.9pp | −0.1pp | −7.6pp | +0.5pp | +13.4pp | +2.4pp | +17.3pp | −10.6pp | −15.0pp | +1.1pp | +8.9pp | −3.5pp |
58 monthly observations across 2021–2026, benchmark SPY. The highlighted column is the current calendar month. Months are calendar months, not rolling 30-day windows.
