MSU
QUMS

Mizuho Securities USA’s Quantumsphere Acquisition Corp QUMS Stock Holding History

Mizuho Securities USA’s Portfolio QUMS Stock Details QUMS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$7.68M Buy
757,023
+25,039
+3% +$255K 0.12% 145
2026
Q1 		$7.36M Buy
731,984
+13,898
+2% +$140K 0.17% 117
2025
Q4 		$7.13M Buy
+718,086
New +$7.16M 0.12% 149

Other funds holding QUMS

WRBC
W.R. Berkley Corp Greenwich, Connecticut $2.18B AUM 13.58% 1-Year Est. Return
WAM
Wolverine Asset Management Chicago, Illinois $11.4B AUM 5.65% 1-Year Est. Return
KIM
Karpus Investment Management Pittsford, New York $3.48B AUM 10.49% 1-Year Est. Return
RCM
Rivernorth Capital Management West Palm Beach, Florida $2.1B AUM 2.15% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
SCM
Shaolin Capital Management Miami, Florida $2.1B AUM 64.05% 1-Year Est. Return
GCL
Glazer Capital LLC New York $4.07B AUM 78.71% 1-Year Est. Return
LA
Linden Advisors New York $19.3B AUM 1.47% 1-Year Est. Return
PAMP
Polar Asset Management Partners Toronto, Ontario, Canada $6.07B AUM 34.81% 1-Year Est. Return
HCM
Highbridge Capital Management New York $4.11B AUM 26.03% 1-Year Est. Return

Mizuho Securities USA's QUMS Position: Q2 2026 in Review

Mizuho Securities USA increased its Quantumsphere Acquisition Corp (QUMS) stake by 3.4% in Q2 2026, buying an estimated $255K and bringing the position to 757,023 shares worth $7.68M. The position accounts for 0.12% of the portfolio, ranked #145.

Mizuho Securities USA first reported a position in QUMS in Q4 2025 and has held it in 3 quarters since. 27 funds tracked by Wall St. Rank hold QUMS as of Q2 2026.

  • Mizuho Securities USA held 757,023 shares of Quantumsphere Acquisition Corp worth $7.68M as of Q2 2026.
  • Mizuho Securities USA bought 25,039 Quantumsphere Acquisition Corp shares in Q2 2026, an estimated $255K.
  • Quantumsphere Acquisition Corp made up 0.12% of Mizuho Securities USA's portfolio in Q2 2026, its #145 holding.
  • Mizuho Securities USA first reported a position in Quantumsphere Acquisition Corp in Q4 2025 and has held it in 3 quarters since.
  • 27 funds tracked by Wall St. Rank held Quantumsphere Acquisition Corp as of Q2 2026.

Based on Mizuho Securities USA's 13F filing for Q2 2026, filed 24 Jul 2026.