Interactive Brokers Tumbles 52% in Volume to 352nd Rank Amid 1.58% Price Gains

On September 8, 2025, , , ranking it 352nd in volume among listed stocks. .

The decline in trading activity may reflect reduced short-term speculative interest, though the price increase suggests continued institutional or retail confidence in the firm’s fundamentals. Analysts note that volume trends often precede broader market shifts, but no immediate catalysts for the volume drop were identified in available reports.

To run this back-test accurately there are a few practical details we need to pin down first. Please confirm (or amend) the following so I can build the data-retrieval and back-test pipeline correctly: 1. Universe • U.S. ? • Exclude ADRs, ETFs and preferred shares? 2. ? • Re-selected every day (i.e., full daily re-balance)? 3. , ? ? 4. , or would you like to include a per-trade cost? 5. , , ? Once you confirm these points I’ll generate the data retrieval plan and launch the automated back-test.