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IWO Top Holdings & Constituents

IWO, offered by iShares, holds 1105 reported positions across $15.1B in assets. Its largest holdings are BlackRock Funds III (13.68%), Bloom Energy Corp. (BE) (1.99%), and Fabrinet (1.26%). The 5 biggest positions account for 18.89% 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
BlackRock Funds III
13.68%
$1.66B
BE
Bloom Energy Corp.
1.99%
$241.67M
Fabrinet
1.26%
$153.72M
Credo Technology Group Holding Ltd.
1.02%
$123.64M
NXT
Nextpower, Inc.
0.94%
$114.79M

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.