You'd think "past year" would include a full 12 months. This person has chosen a ~10 month period to hide the large drop off in early 2025 as you can see here:
https://www.citadelsecurities.com/news-and-insights/2026-glo...
However, the chart settings were actually modified to hide/deemphasize the earlier decline: the the index date was changed. 2025-02-20=100 in their graph, default of 2020-02-01=100 would have the chart start at 64 and rise to 71.44.