Marshall Wace
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Marshall Wace’s iShares US Oil & Gas Exploration & Production ETF IEO Stock Holding History

Marshall Wace’s Portfolio IEO Stock Details IEO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		– Sell
2025
Q2 		$413K Buy
2023
Q2 		– Sell
2023
Q1 		$300K Sell
2022
Q4 		$362K Buy
2021
Q4 		– Sell
2021
Q3 		$227K Buy
2019
Q4 		– Sell
2019
Q3 		$71K Sell
2019
Q2 		$233K Buy
2019
Q1 		$70K Buy