Rubin 100 · Daily leaders — ALAB +17.69% / 6525.T -5.27%
May 21, 2026 close: Astera Labs leads +17.69%, Kokusai Electric trails -5.27%. 102/102 constituents covered.
Rubin 100 constituent single-day returns for May 21, 2026.
Top 3: ALAB +17.69% · ARM +15.05% · ATS.VI +12.16%.
Bottom 3: 6525.T -5.27% · 7731.T -4.78% · 6361.T -4.23%.
Coverage: 102 of 102 constituents. Ticker links open the per-stock detail view.
→ closelook.net/indices/rubin/