Rubin 100 · 1-month sector leaders — MEMORY +50.84% / GASCHEM +3.57%
Through May 19, 2026: Memory (HBM & NAND) leads the last 21 trading days at +50.84%, Gases, Chemicals & Consumables trails at +3.57%.
Rubin 100 sector-mean 1-month (21 trading day) returns as of May 19, 2026.
Top sectors: MEMORY +50.84% · MATERIALS +37.11% · SUBSTRATE +35.08%.
Weakest sectors: GASCHEM +3.57% · GRID +6.43% · TESTMET +8.94%.
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/