Rubin 100 · 1-month sector leaders — MEMORY +51.55% / GRID -3.27%
Through May 21, 2026: Memory (HBM & NAND) leads the last 21 trading days at +51.55%, Grid & Power Infrastructure trails at -3.27%.
Rubin 100 sector-mean 1-month (21 trading day) returns as of May 21, 2026.
Top sectors: MEMORY +51.55% · SUBSTRATE +35.85% · ARCHITECTS +30.60%.
Weakest sectors: GRID -3.27% · GASCHEM +1.78% · TESTMET +3.79%.
The 1-month view smooths single-session noise — use it for regime-persistent rotation reads vs. the daily sector-flow signal.
→ closelook.net/indices/rubin/