Citadel Advisors
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Citadel Advisors’s Vanguard S&P Small-Cap 600 ETF VIOO Stock Holding History

Citadel Advisors’s Portfolio VIOO Stock Details VIOO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$837K Buy
+7,292
New +$855K ﹤0.01% 8069
2025
Q3 		– Sell
-28,954
Closed -$2.93M – 14218
2025
Q2 		$2.93M Sell
28,954
-14,264
-33% -$1.36M ﹤0.01% 5019
2025
Q1 		$4.17M Buy
43,218
+31,656
+274% +$3.29M ﹤0.01% 4186
2024
Q4 		$1.23M Sell
11,562
-9,518
-45% -$1.05M ﹤0.01% 6608
2024
Q3 		$2.28M Buy
21,080
+10,357
+97% +$1.08M ﹤0.01% 5291
2024
Q2 		$1.05M Buy
+10,723
New +$1.05M ﹤0.01% 6477
2024
Q1 		– Sell
-4,106
Closed -$407K – 15492
2023
Q4 		$407K Buy
+4,106
New +$366K ﹤0.01% 8531
2023
Q2 		– Sell
-8,012
Closed -$711K – 15299
2023
Q1 		$711K Sell
8,012
-8,920
-53% -$817K ﹤0.01% 7530
2022
Q4 		$1.47M Buy
+16,932
New +$1.5M ﹤0.01% 6077
2022
Q2 		– Sell
-10,074
Closed -$997K – 14190
2022
Q1 		$997K Buy
10,074
+2,712
+37% +$268K ﹤0.01% 7698
2021
Q4 		$773K Buy
+7,362
New +$773K ﹤0.01% 8573
2021
Q3 		– Sell
-4,974
Closed -$516K – 14725
2021
Q2 		$516K Sell
4,974
-5,416
-52% -$553K ﹤0.01% 10003
2021
Q1 		$1.03M Sell
10,390
-2,182
-17% -$209K ﹤0.01% 8034
2020
Q4 		$1.05M Sell
12,572
-11,256
-47% -$851K ﹤0.01% 6702
2020
Q3 		$1.54M Buy
23,828
+3,582
+18% +$235K ﹤0.01% 5218
2020
Q2 		$1.27M Buy
+20,246
New +$1.17M ﹤0.01% 5397
2020
Q1 		– Sell
-5,346
Closed -$407K – 10241
2019
Q4 		$407K Sell
5,346
-29,068
-84% -$2.14M ﹤0.01% 7136
2019
Q3 		$2.45M Sell
34,414
-16,072
-32% -$1.14M ﹤0.01% 4156
2019
Q2 		$3.61M Buy
+50,486
New +$3.57M ﹤0.01% 3571
2019
Q1 		– Sell
-29,310
Closed -$1.84M – 9906
2018
Q4 		$1.84M Buy
+29,310
New +$2.07M ﹤0.01% 4270
2015
Q1 		– Sell
-36,038
Closed -$1.85M – 8877
2014
Q4 		$1.85M Buy
+36,038
New +$1.78M ﹤0.01% 3005

Other funds holding VIOO

OWM
Orgel Wealth Management Altoona, Wisconsin $5.27B AUM 16.18% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Mariner
Mariner Overland Park, Kansas $85.7B AUM 24.21% 1-Year Est. Return
Ameriprise
Ameriprise Minneapolis, Minnesota $432B AUM 30.22% 1-Year Est. Return
Cerity Partners
Cerity Partners New York $70.8B AUM 21.68% 1-Year Est. Return
Raymond James Financial
Raymond James Financial St Petersburg, Florida $324B AUM 22.36% 1-Year Est. Return
Wells Fargo
Wells Fargo San Francisco, California $530B AUM 22.01% 1-Year Est. Return
Royal Bank of Canada
Royal Bank of Canada Toronto, Ontario, Canada $570B AUM 27.57% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

Citadel Advisors's VIOO Position: Q1 2026 in Review

Citadel Advisors opened a new position in Vanguard S&P Small-Cap 600 ETF (VIOO) in Q1 2026: 7,292 shares worth $837K. The stake represents ﹤0.01% of the portfolio and ranks #8069 among its holdings. This is a return to the name: Citadel Advisors previously reported a position in VIOO as recently as Q2 2025.

Citadel Advisors first reported a position in VIOO in Q4 2014 and has held it in 21 quarters since. The position peaked at $4.17M in Q1 2025. 379 funds tracked by Wall St. Rank hold VIOO as of Q1 2026.

  • Citadel Advisors held 7,292 shares of Vanguard S&P Small-Cap 600 ETF worth $837K as of Q1 2026.
  • Vanguard S&P Small-Cap 600 ETF was a new Citadel Advisors position in Q1 2026.
  • Vanguard S&P Small-Cap 600 ETF made up ﹤0.01% of Citadel Advisors's portfolio in Q1 2026, its #8069 holding.
  • Citadel Advisors first reported a position in Vanguard S&P Small-Cap 600 ETF in Q4 2014 and has held it in 21 quarters since.
  • Citadel Advisors's Vanguard S&P Small-Cap 600 ETF position peaked at $4.17M in Q1 2025.
  • 379 funds tracked by Wall St. Rank held Vanguard S&P Small-Cap 600 ETF as of Q1 2026.

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