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BIGRX Top Holdings & Constituents

BIGRX, offered by American Century, holds 194 reported positions across $2.0B in assets. Its largest holdings are JPMorgan Chase & Co (JPM) (3.48%), Johnson & Johnson (JNJ) (3.35%), and Merck & Co Inc (MRK) (2.76%). The 5 biggest positions account for 13.73% of reported assets. The table below lists every reported holding with its portfolio weight and market value in US dollars — open any constituent to research its own performance.


PositionWeightMarket Value
JPM
JPMorgan Chase & Co
3.48%
$65.09M
JNJ
Johnson & Johnson
3.35%
$62.66M
MRK
Merck & Co Inc
2.76%
$51.55M
C
Citigroup Inc
2.12%
$39.70M
GOOG
Alphabet Inc
2.02%
$37.75M

Holdings data comes from the latest SEC Form N-PORT-P filing for this fund, covering the reporting period ended Mar 31, 2026. Market values are reported in US dollars, and each weight represents the position's share of reported fund assets. Cash, derivatives, and rounding can mean displayed weights do not total 100%. Funds rebalance and file on a schedule, so this page may not reflect intraday or post-filing changes.