| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | MYGN | SPY | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 · ytd | −8.6% | −18.0% | −2.4% | +5.6% | −16.4% | +43.8% | −6.0% | — | — | — | — | — | −12.7% | +9.3% | −22.0pp |
| 2025 | −7.6% | −15.3% | −17.3% | −16.5% | −43.5% | +26.7% | −27.7% | +65.9% | +13.5% | +11.2% | −5.1% | −19.4% | −55.1% | +17.7% | −72.9pp |
| 2024 | +11.8% | −2.2% | +1.9% | −8.2% | +16.3% | +7.5% | +14.3% | +1.3% | −3.3% | −19.8% | −25.9% | −15.7% | −28.4% | +24.9% | −53.3pp |
| 2023 | +35.9% | −4.1% | +22.8% | −8.4% | +3.6% | +5.1% | −3.6% | −20.1% | −10.1% | −2.9% | +22.5% | +0.3% | +31.9% | +26.2% | +5.7pp |
| 2022 | −4.7% | −7.3% | +3.4% | −18.7% | −6.1% | −5.6% | +45.2% | −15.3% | −14.6% | +8.7% | −2.3% | −28.4% | −47.4% | −18.2% | −29.3pp |
| 2021 | +39.3% | +10.7% | −0.1% | −0.8% | −5.2% | +6.7% | +3.4% | +13.1% | −9.8% | −4.7% | −16.0% | +6.7% | +39.6% | +28.7% | +10.8pp |
| 2020 | +1.5% | −36.3% | −18.8% | +8.0% | −6.0% | −22.0% | +6.4% | +10.8% | −2.5% | −4.7% | +41.1% | +12.7% | −27.4% | +18.3% | −45.7pp |
| 2019 | −3.0% | +10.1% | +7.0% | −5.2% | −21.3% | +12.2% | +4.9% | −19.3% | +21.7% | +17.6% | −23.6% | +5.8% | −6.3% | +31.2% | −37.6pp |
| 2018 | +7.4% | −12.1% | −8.9% | −4.3% | +29.1% | +2.4% | +17.1% | +13.8% | −7.6% | −2.1% | −28.4% | −9.8% | −15.4% | −4.6% | −10.8pp |
| 2017 | −2.9% | +20.1% | −1.2% | −4.2% | +10.7% | +27.0% | −6.1% | +25.6% | +18.7% | −5.3% | +1.0% | −0.8% | +106.0% | +21.7% | +84.3pp |
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. MYGN 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 ⓘ | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 |
| Positive ⓘ | 52% | 33% | 57% | 38% | 48% | 52% | 57% | 71% | 43% | 48% | 38% | 48% |
| Median | +1.5% | −6.1% | +1.9% | −1.8% | −5.2% | +0.1% | +0.5% | +2.7% | −2.5% | −2.1% | −2.3% | −0.1% |
| Best | +39.3% | +31.1% | +22.8% | +23.5% | +29.1% | +43.8% | +46.1% | +65.9% | +21.7% | +21.0% | +41.1% | +12.8% |
| Worst | −12.6% | −36.3% | −18.8% | −18.7% | −43.5% | −22.0% | −27.7% | −34.3% | −14.6% | −19.8% | −28.4% | −29.5% |
| vs SPY ⓘ | +0.7pp | −5.2pp | −0.4pp | −4.7pp | −1.2pp | +2.1pp | −1.9pp | +1.0pp | +1.3pp | −0.7pp | −5.3pp | −1.0pp |
252 monthly observations across 2005–2026, benchmark SPY. The highlighted column is the current calendar month. Months are calendar months, not rolling 30-day windows.
