Form SCHEDULE 13G/A Interactive Brokers Grou Filed by: BlackRock, Inc.

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Interactive Brokers Group, Inc. (NASDAQ: IBKR) Delayed: 95.99 +4.66 (5.10%)
Previous Close $91.33    52 Week High $44.85 
Open $91.99    52 Week Low $29.50 
Day High $96.09    P/E 131.49 
Day Low $91.69    EPS $0.73 
Volume 4,531,109