Simplex Trading
ARX

Simplex Trading’s Accelerant Holdings ARX Stock Holding History

Simplex Trading’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 		$44.1K Buy
3,300
+1,300
+65% +$16.4K ﹤0.01% 6014
2025
Q4 		$32.7K Sell
2,000
-1,700
-46% -$23.9K ﹤0.01% 6037
2025
Q3 		$55K Buy
+3,700
New +$86.7K ﹤0.01% 6364

Other funds holding ARX

SBLIC
Security Benefit Life Insurance Company Topeka, Kansas $190M AUM 31.84% 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

Simplex Trading's ARX Position: Q1 2026 in Review

Simplex Trading reduced its Accelerant Holdings (ARX) stake by 64% in Q1 2026, selling an estimated $12.7K and leaving 558 shares worth $7.45K. The position accounts for ﹤0.01% of the portfolio, ranked #7604.

Simplex Trading first reported a position in ARX in Q4 2025 and has held it in 2 quarters since. The position peaked at $25.6K in Q4 2025. 107 funds tracked by Wall St. Rank hold ARX as of Q1 2026.

  • Simplex Trading held 558 shares of Accelerant Holdings worth $7.45K as of Q1 2026.
  • Simplex Trading sold 1,006 Accelerant Holdings shares in Q1 2026, an estimated $12.7K.
  • Accelerant Holdings made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #7604 holding.
  • Simplex Trading first reported a position in Accelerant Holdings in Q4 2025 and has held it in 2 quarters since.
  • Simplex Trading's Accelerant Holdings position peaked at $25.6K in Q4 2025.
  • 107 funds tracked by Wall St. Rank held Accelerant Holdings as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.