The XLF rose 0.80% (+0.46 pts) on the week, and more than all of that gain came from just three stocks: V, MA, HOOD.
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VISA INC CLASS A SHARES and BROWN + BROWN INC moved almost identically (+5.42% vs +5.74%), yet V moved the XLF 23.0× as much. In a cap-weighted index, the bigger company's weight turns the same percentage move into far more points.
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