Marshall Wace
SMWB icon

Marshall Wace’s Similarweb SMWB Stock Holding History

Marshall Wace’s Portfolio SMWB Stock Details SMWB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$1.67M Buy
638,188
+345,705
+118% +$1.44M ﹤0.01% 1880
2025
Q4 		$2.19M Buy
292,483
+59,269
+25% +$478K ﹤0.01% 1536
2025
Q3 		$2.17M Buy
233,214
+62,272
+36% +$558K ﹤0.01% 1570
2025
Q2 		$1.34M Sell
170,942
-188,344
-52% -$1.41M ﹤0.01% 1733
2025
Q1 		$2.97M Buy
359,286
+550
+0.2% +$6.78K ﹤0.01% 1294
2024
Q4 		$5.08M Buy
358,736
+66,514
+23% +$735K 0.01% 1050
2024
Q3 		$2.58M Buy
292,222
+211,804
+263% +$1.67M ﹤0.01% 1268
2024
Q2 		$625K Sell
80,418
-46,661
-37% -$363K ﹤0.01% 1882
2024
Q1 		$1.14M Buy
127,079
+79,556
+167% +$588K ﹤0.01% 1600
2023
Q4 		$253K Buy
47,523
+8,516
+22% +$44.6K ﹤0.01% 1922
2023
Q3 		$253K Sell
39,007
-35,419
-48% -$232K ﹤0.01% 1932
2023
Q2 		$488K Buy
74,426
+4,586
+7% +$27.8K ﹤0.01% 1997
2023
Q1 		$472K Buy
69,840
+46,667
+201% +$299K ﹤0.01% 2131
2022
Q4 		$149K Sell
23,173
-89,956
-80% -$515K ﹤0.01% 2740
2022
Q3 		$663K Buy
113,129
+38,291
+51% +$317K ﹤0.01% 2607
2022
Q2 		$618K Sell
74,838
-65,679
-47% -$693K ﹤0.01% 2693
2022
Q1 		$1.82M Sell
140,517
-3,736
-3% -$53.2K ﹤0.01% 2115
2021
Q4 		$2.58M Buy
144,253
+95,231
+194% +$1.75M ﹤0.01% 1870
2021
Q3 		$1.03M Sell
49,022
-84,417
-63% -$1.83M ﹤0.01% 2000
2021
Q2 		$2.63M Buy
+133,439
New +$2.76M 0.01% 1237

Other funds holding SMWB

N
Naspers South Africa $253M AUM 25.32% 1-Year Est. Return
MMH
Menora Mivtachim Holdings Ramat Gan, Israel $21.1B AUM 40.03% 1-Year Est. Return
YDMI
Y.D. More Investments Ramat Gan, Israel $2.55B AUM 104.35% 1-Year Est. Return
ICP
ION Crossover Partners Herzliya Pituach, Israel $36.9M AUM
UM
Ulysses Management New York $802M AUM 5.35% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
SST
S Squared Technology New York $264M AUM 73.25% 1-Year Est. Return
CP
CenterBook Partners Greenwich, Connecticut $1.86B AUM 24.52% 1-Year Est. Return
AFT
Alpha Family Trust Los Angeles, California $206M AUM 35.6% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

Marshall Wace's SMWB Position: Q1 2026 in Review

Marshall Wace increased its Similarweb (SMWB) stake by 118% in Q1 2026, buying an estimated $1.44M and bringing the position to 638,188 shares worth $1.67M. The position accounts for ﹤0.01% of the portfolio, ranked #1880.

Marshall Wace first reported a position in SMWB in Q2 2021 and has held it in 20 quarters since. The position peaked at $5.08M in Q4 2024. 79 funds tracked by Wall St. Rank hold SMWB as of Q1 2026.

  • Marshall Wace held 638,188 shares of Similarweb worth $1.67M as of Q1 2026.
  • Marshall Wace bought 345,705 Similarweb shares in Q1 2026, an estimated $1.44M.
  • Similarweb made up ﹤0.01% of Marshall Wace's portfolio in Q1 2026, its #1880 holding.
  • Marshall Wace first reported a position in Similarweb in Q2 2021 and has held it in 20 quarters since.
  • Marshall Wace's Similarweb position peaked at $5.08M in Q4 2024.
  • 79 funds tracked by Wall St. Rank held Similarweb as of Q1 2026.

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