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Optimize Financial’s MarketAxess Holdings MKTX Stock Holding History

Optimize Financial’s Portfolio MKTX Stock Details MKTX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$422K Buy
+2,559
New +$448K 0.21% 179
2025
Q3 		– Sell
-1,900
Closed -$424K – 394
2025
Q2 		$424K Sell
1,900
-12
-0.6% -$2.64K 0.26% 104
2025
Q1 		$414K Buy
1,912
+664
+53% +$139K 0.3% 99
2024
Q4 		$282K Buy
+1,248
New +$329K 0.21% 144

Other funds holding MKTX

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
NRCM
North Reef Capital Management Laguna Beach, California $2.91B AUM 11.03% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VanEck Associates
VanEck Associates New York $133B AUM 72.99% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

Optimize Financial's MKTX Position: Q1 2026 in Review

Optimize Financial opened a new position in MarketAxess Holdings (MKTX) in Q1 2026: 2,559 shares worth $422K. The stake represents 0.21% of the portfolio and ranks #179 among its holdings. This is a return to the name: Optimize Financial previously reported a position in MKTX as recently as Q2 2025.

Optimize Financial first reported a position in MKTX in Q4 2024 and has held it in 4 quarters since. The position peaked at $424K in Q2 2025. 447 funds tracked by Wall St. Rank hold MKTX as of Q1 2026.

  • Optimize Financial held 2,559 shares of MarketAxess Holdings worth $422K as of Q1 2026.
  • MarketAxess Holdings was a new Optimize Financial position in Q1 2026.
  • MarketAxess Holdings made up 0.21% of Optimize Financial's portfolio in Q1 2026, its #179 holding.
  • Optimize Financial first reported a position in MarketAxess Holdings in Q4 2024 and has held it in 4 quarters since.
  • Optimize Financial's MarketAxess Holdings position peaked at $424K in Q2 2025.
  • 447 funds tracked by Wall St. Rank held MarketAxess Holdings as of Q1 2026.

Based on Optimize Financial's 13F filing for Q1 2026, filed 12 May 2026.