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Livermore
Livermore
ZHEN

Citadel Advisors LLC

SEC CIK
0001423053
Latest filing
Sep 1, 2026

MDY holding history

SPDR S&P Midcap 400 ETF Trust in every 13F filed by Citadel Advisors LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

MDY overviewAll 13F holders of MDYFull Q2 2026 holdings

Shares (Q2 2026)
34,729
Value
$24.4M
% of portfolio
<0.1%
Quarters held
21
Since Q1 2021
Holdings of MDY by Citadel Advisors LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 202634,729$24.4M<0.1%+34,729NewHolders
Q1 20260$00.0%−834−100.0%Sold outHolders
Q4 2025834$503.1K<0.1%−62−6.9%ReducedHolders
Q3 2025896$534.0K<0.1%−1,319−59.5%ReducedHolders
Q2 20252,215$1.25M<0.1%−221,127−99.0%ReducedHolders
Q1 2025223,342$119.1M0.1%−172,142−43.5%ReducedHolders
Q4 2024395,484$225.3M0.2%+273,864+225.2%AddedHolders
Q3 2024121,620$69.3M0.1%+72,317+146.7%AddedHolders
Q2 202449,303$26.4M<0.1%−27,622−35.9%ReducedHolders
Q1 202476,925$42.8M<0.1%−58,572−43.2%ReducedHolders
Q4 2023135,497$68.7M0.1%−189,400−58.3%ReducedHolders
Q3 2023324,897$148.4M0.2%+57,695+21.6%AddedHolders
Q2 2023267,202$128.0M0.1%+86,369+47.8%AddedHolders
Q1 2023180,833$82.9M0.1%+91,113+101.6%AddedHolders
Q4 202289,720$39.7M<0.1%+35,215+64.6%AddedHolders
Q3 202254,505$21.9M<0.1%+53,793+7,555.2%AddedHolders
Q2 2022712$294.0K<0.1%−33,229−97.9%ReducedHolders
Q1 202233,941$16.6M<0.1%−7,580−18.3%ReducedHolders
Q4 202141,521$21.5M<0.1%−10,492−20.2%ReducedHolders
Q3 202152,013$25.0M<0.1%+29,179+127.8%AddedHolders
Q2 202122,834$11.2M<0.1%−8,429−27.0%ReducedHolders
Q1 202131,263$14.9M<0.1%––Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.