The XLP rose 11.37% (+8.83 pts) so far this year in a broad advance: 25 of 34 stocks rose, with KO out front at +1.79 points.
Read the latest market-close note: Nvidia and Goldman Sachs Lead a Narrow Advance as Energy and Staples Slide
COSTCO WHOLESALE CORP and BROWN FORMAN CORP CLASS B moved almost identically (+11.64% vs +10.09%), yet COST moved the XLP 93.2× 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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