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Rossby Financial’s Silicon Motion SIMO Stock Holding History

Rossby Financial’s Portfolio SIMO Stock Details SIMO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$2K Hold
6
– – ﹤0.01% 1727
2026
Q1 		$702 Buy
6
+4
+200% +$485 ﹤0.01% 2053
2025
Q4 		$185 Hold
2
– – ﹤0.01% 1756
2025
Q3 		$195 Buy
+2
New +$159 ﹤0.01% 1446

Other funds holding SIMO

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Alkeon Capital Management
Alkeon Capital Management New York $74.1B AUM 71.18% 1-Year Est. Return
HRCM
Hawk Ridge Capital Management Los Angeles, California $3.12B AUM 53.42% 1-Year Est. Return
RP
Reinhart Partners Mequon, Wisconsin $4.38B AUM 55.55% 1-Year Est. Return
PCH
Polar Capital Holdings London, United Kingdom $42.4B AUM 181.11% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $17.3B AUM 211.34% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
WHCM
Wolf Hill Capital Management Greenwich, Connecticut $1.2B AUM 137.35% 1-Year Est. Return

Rossby Financial's SIMO Position: Q2 2026 in Review

Rossby Financial held its Silicon Motion (SIMO) position steady in Q2 2026 at 6 shares worth $2K. The position accounts for ﹤0.01% of the portfolio, ranked #1727.

Rossby Financial first reported a position in SIMO in Q3 2025 and has held it in 4 quarters since. 385 funds tracked by Wall St. Rank hold SIMO as of Q2 2026.

  • Rossby Financial held 6 shares of Silicon Motion worth $2K as of Q2 2026.
  • Rossby Financial left its Silicon Motion share count unchanged in Q2 2026.
  • Silicon Motion made up ﹤0.01% of Rossby Financial's portfolio in Q2 2026, its #1727 holding.
  • Rossby Financial first reported a position in Silicon Motion in Q3 2025 and has held it in 4 quarters since.
  • 385 funds tracked by Wall St. Rank held Silicon Motion as of Q2 2026.

Based on Rossby Financial's 13F filing for Q2 2026, filed 4 Aug 2026.