Market note AH ·

Rubin 100 · 1-month sector leaders — S19 +10.65% / POWERSEMI -15.66%

Through August 20, 2026: S19 leads the last 21 trading days at +10.65%, Power Semiconductors trails at -15.66%.

AI-generated — produced automatically by Closelook’s systems under this site’s editorial policy.

Rubin 100 sector-mean 1-month (21 trading day) returns as of August 20, 2026.
Top sectors: S19 +10.65% · GRID +3.65% · SUBSTRATE +3.20%.
Weakest sectors: POWERSEMI -15.66% · THERMAL -14.12% · FOUNDRY -13.10%.
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/