The XLV is down 0.89% (−1.55 pts) so far today, but 28 of 59 members went the other way. LLY and ABBV dragged the tape lower, accounting for 85% of the decline.
Read the latest market-close note: Nvidia and Goldman Sachs Lead a Narrow Advance as Energy and Staples Slide
JOHNSON + JOHNSON and AGILENT TECHNOLOGIES INC moved almost identically (−0.83% vs −0.75%), yet JNJ moved the XLV 15.2× 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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