Rubin 100 · 1-month sector leaders — MEMORY +67.39% / GRID +2.44%
Through May 27, 2026: Memory (HBM & NAND) leads the last 21 trading days at +67.39%, Grid & Power Infrastructure trails at +2.44%.
Rubin 100 sector-mean 1-month (21 trading day) returns as of May 27, 2026.
Top sectors: MEMORY +67.39% · SUBSTRATE +43.96% · MATERIALS +35.64%.
Weakest sectors: GRID +2.44% · GASCHEM +4.37% · TESTMET +9.27%.
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/