Marshall Wace
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Marshall Wace’s Ero Copper ERO Stock Holding History

Marshall Wace’s Portfolio ERO Stock Details ERO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$3.27M Buy
+122,534
New +$3.68M ﹤0.01% 1527
2025
Q4 		– Sell
-543,723
Closed -$11M – 3102
2025
Q3 		$11M Sell
543,723
-65,898
-11% -$1M 0.01% 886
2025
Q2 		$10.3M Buy
609,621
+585,087
+2,385% +$7.9M 0.01% 832
2025
Q1 		$297K Sell
24,534
-29,607
-55% -$395K ﹤0.01% 2271
2024
Q4 		$730K Buy
+54,141
New +$917K ﹤0.01% 1880

Other funds holding ERO

Fidelity International
Fidelity International Hamilton, Bermuda $129B AUM 30.83% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Mirae Asset Global ETFs Holdings
Mirae Asset Global ETFs Holdings Causeway Bay, Hong Kong $73.7B AUM 53.56% 1-Year Est. Return
GC
GMT Capital Atlanta, Georgia $2.19B AUM 72.3% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
CAAM
Cape Ann Asset Management London, United Kingdom $440M AUM 96.23% 1-Year Est. Return
Jennison Associates
Jennison Associates New York $145B AUM 34.61% 1-Year Est. Return
FCM
Frontier Capital Management Boston, Massachusetts $9.73B AUM 55.65% 1-Year Est. Return
KI
Kapitalo Investimentos Sao Paulo, Brazil $531M AUM 25.72% 1-Year Est. Return

Marshall Wace's ERO Position: Q1 2026 in Review

Marshall Wace opened a new position in Ero Copper (ERO) in Q1 2026: 122,534 shares worth $3.27M. The stake represents ﹤0.01% of the portfolio and ranks #1527 among its holdings. This is a return to the name: Marshall Wace previously reported a position in ERO as recently as Q3 2025.

Marshall Wace first reported a position in ERO in Q4 2024 and has held it in 5 quarters since. The position peaked at $11M in Q3 2025. 190 funds tracked by Wall St. Rank hold ERO as of Q1 2026.

  • Marshall Wace held 122,534 shares of Ero Copper worth $3.27M as of Q1 2026.
  • Ero Copper was a new Marshall Wace position in Q1 2026.
  • Ero Copper made up ﹤0.01% of Marshall Wace's portfolio in Q1 2026, its #1527 holding.
  • Marshall Wace first reported a position in Ero Copper in Q4 2024 and has held it in 5 quarters since.
  • Marshall Wace's Ero Copper position peaked at $11M in Q3 2025.
  • 190 funds tracked by Wall St. Rank held Ero Copper as of Q1 2026.

Based on Marshall Wace's 13F filing for Q1 2026, filed 15 May 2026.