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
2025
Q4 		– Sell
-41,000
Closed -$381K – 13964
2025
Q3 		$381K Sell
41,000
-23,500
-36% -$210K ﹤0.01% 9785
2025
Q2 		$506K Sell
64,500
-18,000
-22% -$135K ﹤0.01% 8600
2025
Q1 		$682K Sell
82,500
-58,600
-42% -$722K ﹤0.01% 7793
2024
Q4 		$2M Buy
+141,100
New +$1.56M ﹤0.01% 5633
2024
Q2 		– Sell
-3,600
Closed -$32.4K – 15308
2024
Q1 		$32.4K Buy
3,600
+3,500
+3,500% +$25.9K ﹤0.01% 12620
2023
Q4 		$533 Buy
+100
New +$524 ﹤0.01% 14012
2023
Q3 		– Sell
-2,000
Closed -$13.1K – 15048
2023
Q2 		$13.1K Sell
2,000
-2,200
-52% -$13.4K ﹤0.01% 13051
2023
Q1 		$28.4K Buy
4,200
+2,900
+223% +$18.6K ﹤0.01% 12787
2022
Q4 		$8.36K Sell
1,300
-12,400
-91% -$71K ﹤0.01% 13752
2022
Q3 		$80K Sell
13,700
-2,400
-15% -$19.9K ﹤0.01% 11283
2022
Q2 		$133K Sell
16,100
-200
-1% -$2.11K ﹤0.01% 11103
2022
Q1 		$211K Buy
+16,300
New +$232K ﹤0.01% 11401

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.