| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | ARGX | SPY | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 · ytd | −0.1% | −8.8% | −4.8% | +7.0% | +6.9% | +11.0% | −5.9% | — | — | — | — | — | +3.8% | +7.5% | −3.8pp |
| 2025 | +6.5% | −4.6% | −5.3% | +9.0% | −11.1% | −3.8% | +21.6% | +6.2% | +3.6% | +11.0% | +11.4% | −7.8% | +36.7% | +17.7% | +19.0pp |
| 2024 | +0.0% | −0.1% | +3.6% | −4.6% | −1.2% | +15.9% | +20.0% | +0.3% | +4.8% | +8.2% | +5.2% | −0.3% | +61.7% | +24.9% | +36.8pp |
| 2023 | +0.9% | −4.2% | +1.8% | +4.1% | +0.2% | +0.3% | +29.4% | −0.4% | −2.2% | −4.5% | −4.0% | −15.6% | +0.4% | +26.2% | −25.8pp |
| 2022 | −23.1% | +6.9% | +9.6% | −8.9% | +7.7% | +22.5% | −3.9% | +3.8% | −6.6% | +9.9% | +2.6% | −4.8% | +8.2% | −18.2% | +26.4pp |
| 2021 | −0.4% | +12.9% | −16.7% | +4.1% | −2.7% | +7.9% | +1.1% | +8.7% | −8.8% | −0.0% | −7.5% | +25.4% | +19.1% | +28.7% | −9.7pp |
| 2020 | −10.1% | −2.0% | −6.8% | +11.2% | +49.7% | +2.7% | +2.2% | +0.5% | +13.5% | −5.5% | +15.6% | +2.5% | +83.2% | +18.3% | +64.9pp |
| 2019 | +10.5% | +25.6% | −6.3% | +2.6% | −3.5% | +14.5% | −0.8% | −6.4% | −13.3% | +7.5% | +20.9% | +8.4% | +67.1% | +31.2% | +35.9pp |
| 2018 | +22.9% | −1.2% | +5.0% | +8.9% | +9.0% | −13.2% | +9.5% | +3.4% | −19.2% | +5.5% | +20.9% | −0.7% | +52.2% | −4.6% | +56.7pp |
| 2017 · part | — | — | — | — | — | +1.7% | −1.1% | −0.3% | +8.2% | +1.4% | +39.7% | +97.2% | +202.8% | +21.7% | +181.1pp |
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. ARGX 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 ⓘ | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 9 | 9 | 9 | 9 | 9 |
| Positive ⓘ | 56% | 33% | 44% | 78% | 56% | 80% | 60% | 67% | 44% | 67% | 78% | 44% |
| Median | +0.0% | −1.2% | −4.8% | +4.1% | +0.2% | +5.3% | +1.6% | +0.5% | −2.2% | +5.5% | +11.4% | −0.3% |
| Best | +22.9% | +25.6% | +9.6% | +11.2% | +49.7% | +22.5% | +29.4% | +8.7% | +13.5% | +11.0% | +39.7% | +97.2% |
| Worst | −23.1% | −8.8% | −16.7% | −8.9% | −11.1% | −13.2% | −5.9% | −6.4% | −19.2% | −5.5% | −7.5% | −15.6% |
| vs SPY ⓘ | −1.5pp | +2.4pp | +0.3pp | −0.6pp | +1.7pp | +3.4pp | −1.8pp | +0.2pp | +2.6pp | +1.8pp | +4.7pp | +2.2pp |
110 monthly observations across 2017–2026, benchmark SPY. The highlighted column is the current calendar month. Months are calendar months, not rolling 30-day windows.
