WESTLAKE, Texas--(BUSINESS WIRE)--The Schwab Trading Activity Index™ (STAX) increased to 47.65 in February, up from its score of 44.73 in January. The only index of its kind, the STAX is a proprietary, behavior-based index that analyzes retail investor stock positions and trading activity from Schwab’s millions of client accounts to illuminate what investors were actually doing and how they were positioned in the markets each month. The reading for the four-week period ending February 23, 2024 ranks “mod ...