XT
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XTX Topco’s Cardio Diagnostics CDIO Stock Holding History

XTX Topco’s Portfolio CDIO Stock Details CDIO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$35.2K Buy
+16,093
New +$30.4K ﹤0.01% 3791
2025
Q2 		– Sell
-1,912
Closed -$18.9K – 2426
2025
Q1 		$18.9K Buy
1,912
+1,149
+151% +$17.9K ﹤0.01% 2148
2024
Q4 		$21K Buy
+763
New +$10.6K ﹤0.01% 2030

Other funds holding CDIO

Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return
Jane Street
Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Vanguard Fiduciary Trust
Vanguard Fiduciary Trust Malvern, Pennsylvania $454B AUM
TRCT
Tower Research Capital (TRC) New York $4.08B AUM 58.77% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

XTX Topco's CDIO Position: Q2 2026 in Review

XTX Topco opened a new position in Cardio Diagnostics (CDIO) in Q2 2026: 16,093 shares worth $35.2K. The stake represents ﹤0.01% of the portfolio and ranks #3791 among its holdings. This is a return to the name: XTX Topco previously reported a position in CDIO as recently as Q1 2025.

XTX Topco first reported a position in CDIO in Q4 2024 and has held it in 3 quarters since. 17 funds tracked by Wall St. Rank hold CDIO as of Q2 2026.

  • XTX Topco held 16,093 shares of Cardio Diagnostics worth $35.2K as of Q2 2026.
  • Cardio Diagnostics was a new XTX Topco position in Q2 2026.
  • Cardio Diagnostics made up ﹤0.01% of XTX Topco's portfolio in Q2 2026, its #3791 holding.
  • XTX Topco first reported a position in Cardio Diagnostics in Q4 2024 and has held it in 3 quarters since.
  • 17 funds tracked by Wall St. Rank held Cardio Diagnostics as of Q2 2026.

Based on XTX Topco's 13F filing for Q2 2026, filed 14 Aug 2026.