XT
ARX

XTX Topco’s Accelerant Holdings ARX Stock Holding History

XTX Topco’s Portfolio ARX Stock Details ARX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$3.18M Buy
237,669
+131,421
+124% +$1.66M 0.06% 529
2025
Q4 		$1.74M Buy
106,248
+42,383
+66% +$597K 0.05% 651
2025
Q3 		$951K Buy
+63,865
New +$1.5M 0.05% 610

Other funds holding ARX

SBLIC
Security Benefit Life Insurance Company Topeka, Kansas $182M AUM 31.21% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
KC
Keenan Capital Burlingame, California $474M AUM 2.41% 1-Year Est. Return
GGHC
Gilder Gagnon Howe & Co New York $8.34B AUM 46.58% 1-Year Est. Return
B
Barings Charlotte, North Carolina $6.19B AUM 16.5% 1-Year Est. Return
AllianceBernstein
AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

XTX Topco's ARX Position: Q1 2026 in Review

XTX Topco increased its Accelerant Holdings (ARX) stake by 124% in Q1 2026, buying an estimated $1.66M and bringing the position to 237,669 shares worth $3.18M. The position accounts for 0.06% of the portfolio, ranked #529.

XTX Topco first reported a position in ARX in Q3 2025 and has held it in 3 quarters since. 107 funds tracked by Wall St. Rank hold ARX as of Q1 2026.

  • XTX Topco held 237,669 shares of Accelerant Holdings worth $3.18M as of Q1 2026.
  • XTX Topco bought 131,421 Accelerant Holdings shares in Q1 2026, an estimated $1.66M.
  • Accelerant Holdings made up 0.06% of XTX Topco's portfolio in Q1 2026, its #529 holding.
  • XTX Topco first reported a position in Accelerant Holdings in Q3 2025 and has held it in 3 quarters since.
  • 107 funds tracked by Wall St. Rank held Accelerant Holdings as of Q1 2026.

Based on XTX Topco's 13F filing for Q1 2026, filed 15 May 2026.