| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | GEVO | SPY | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 · ytd | −2.0% | −7.1% | +50.0% | −30.0% | −2.6% | −19.4% | −3.3% | — | — | — | — | — | −27.5% | +7.5% | −35.0pp |
| 2025 | −15.8% | −19.9% | −17.7% | −5.2% | +15.5% | +3.9% | −1.5% | +33.1% | +13.3% | +19.4% | −8.5% | −6.5% | −4.3% | +17.7% | −22.0pp |
| 2024 | −19.5% | −4.5% | −13.8% | −14.3% | +3.8% | −18.5% | +4.3% | +36.0% | +106.3% | +42.9% | −29.2% | +26.7% | +80.2% | +24.9% | +55.3pp |
| 2023 | +11.6% | −12.7% | −16.8% | −24.7% | +11.2% | +17.8% | +13.2% | −23.8% | −9.2% | −10.1% | +5.6% | +2.7% | −38.9% | +26.2% | −65.1pp |
| 2022 | −20.1% | +3.8% | +31.8% | −20.7% | +13.2% | −44.0% | +25.1% | +6.5% | −27.2% | −1.3% | −3.1% | −12.8% | −55.6% | −18.2% | −37.4pp |
| 2021 | +139.1% | −4.4% | +1.0% | −30.9% | +11.5% | −3.8% | −16.2% | +2.3% | +6.6% | +8.9% | −20.5% | −25.6% | +0.7% | +28.7% | −28.0pp |
| 2020 | −13.0% | −27.4% | −43.8% | +48.8% | +5.7% | −38.8% | −30.6% | +127.9% | −20.0% | −4.0% | +108.3% | +112.5% | +84.0% | +18.3% | +65.7pp |
| 2019 | +33.2% | −10.7% | −6.0% | −0.9% | −13.8% | +5.3% | +24.4% | +9.0% | +25.5% | −29.6% | −3.0% | +0.9% | +17.9% | +31.2% | −13.4pp |
| 2018 | −7.7% | −17.2% | +2.1% | −21.9% | −34.4% | −19.6% | +2.4% | −1.0% | +2.9% | −24.0% | −6.0% | −30.7% | −83.4% | −4.6% | −78.8pp |
| 2017 | −13.3% | −66.3% | +12.9% | −8.8% | −31.8% | −2.8% | −8.4% | +3.0% | −4.0% | +1.7% | −2.7% | −4.5% | −82.9% | +21.7% | −104.6pp |
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. GEVO 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.
