Rubin 100 · Sector flow — FOUNDRY +3.11% / MATERIALS -6.85%
May 18, 2026 close: Foundry & Integration led +3.11%, Advanced Materials trailed -6.85% (mean 1d across sector constituents).
Rubin 100 sector-mean 1-day returns for May 18, 2026.
Top flow: FOUNDRY +3.11% · DEPETCH -1.51% · THERMAL -2.13%.
Weakest flow: MATERIALS -6.85% · MEMORY -5.87% · SUBSTRATE -5.58%.
Ranking covers 16 sectors (min 3 constituents each).
→ closelook.net/indices/rubin/