Citadel Advisors
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Citadel Advisors’s Similarweb SMWB Stock Holding History

Citadel Advisors’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 		$324K Sell
124,100
-161,800
-57% -$675K ﹤0.01% 10307
2025
Q4 		$2.14M Sell
285,900
-331,600
-54% -$2.67M ﹤0.01% 5782
2025
Q3 		$5.74M Buy
617,500
+206,100
+50% +$1.85M ﹤0.01% 4112
2025
Q2 		$3.23M Buy
411,400
+156,100
+61% +$1.17M ﹤0.01% 4855
2025
Q1 		$2.11M Buy
255,300
+240,600
+1,637% +$2.97M ﹤0.01% 5439
2024
Q4 		$208K Buy
14,700
+2,100
+17% +$23.2K ﹤0.01% 10387
2024
Q3 		$111K Buy
12,600
+12,100
+2,420% +$95.7K ﹤0.01% 10978
2024
Q2 		$3.88K Hold
500
– – ﹤0.01% 13537
2024
Q1 		$4.5K Sell
500
-300
-38% -$2.22K ﹤0.01% 13811
2023
Q4 		$4.26K Buy
+800
New +$4.19K ﹤0.01% 13524
2023
Q3 		– Sell
-900
Closed -$5.9K – 15050
2023
Q2 		$5.9K Buy
900
+800
+800% +$4.86K ﹤0.01% 13462
2023
Q1 		$676 Sell
100
-45,300
-100% -$290K ﹤0.01% 14437
2022
Q4 		$292K Sell
45,400
-11,100
-20% -$63.6K ﹤0.01% 9376
2022
Q3 		$331K Buy
56,500
+45,000
+391% +$372K ﹤0.01% 9355
2022
Q2 		$95K Sell
11,500
-24,700
-68% -$260K ﹤0.01% 11468
2022
Q1 		$469K Buy
36,200
+23,100
+176% +$329K ﹤0.01% 9548
2021
Q4 		$235K Buy
+13,100
New +$241K ﹤0.01% 11506

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

Citadel Advisors's SMWB Position: Q1 2026 in Review

Citadel Advisors increased its Similarweb (SMWB) stake by 138% in Q1 2026, buying an estimated $1.15M and bringing the position to 476,005 shares worth $1.24M. The position accounts for ﹤0.01% of the portfolio, ranked #7183.

Citadel Advisors first reported a position in SMWB in Q2 2021 and has held it in 18 quarters since. The position peaked at $14.9M in Q3 2024. 80 funds tracked by Wall St. Rank hold SMWB as of Q1 2026.

  • Citadel Advisors held 476,005 shares of Similarweb worth $1.24M as of Q1 2026.
  • Citadel Advisors bought 275,891 Similarweb shares in Q1 2026, an estimated $1.15M.
  • Similarweb made up ﹤0.01% of Citadel Advisors's portfolio in Q1 2026, its #7183 holding.
  • Citadel Advisors first reported a position in Similarweb in Q2 2021 and has held it in 18 quarters since.
  • Citadel Advisors's Similarweb position peaked at $14.9M in Q3 2024.
  • 80 funds tracked by Wall St. Rank held Similarweb as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.