MarketNeon Market Brief — September 21, 2026
ARM leads unusual movers at +17.13%; Information Technology leads sector rotation
Top movers
- ARM +17.13% · 3.94× RVOL
- WBD +10.68% · 8.1× RVOL
- TP -9.95% · 9.19× RVOL
- KORU +11.99% · 0.91× RVOL
- MEDS +10.53% · 0.13× RVOL
Sector rotation
Information Technology leading at +4.60%
Sector
Change
Avg
Breadth
Information Technology
+4.60%
100% adv
Communication Services
+3.66%
75% adv
Industrials
+2.52%
86% adv
Health Care
+1.91%
89% adv
Financials
+1.84%
91% adv
Consumer Discretionary
+0.38%
62% adv
Energy
-2.60%
13% adv