Simplex Trading
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Simplex Trading’s Roundhill Space & Technology ETF MARS Stock Holding History

Simplex Trading’s Portfolio MARS Stock Details MARS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q3 		$152K Sell
6,051
-2,487
-29% -$64.8K ﹤0.01% 4946
2026
Q2 		$276K Buy
+8,538
New +$287K ﹤0.01% 4316

Other funds holding MARS

Jane Street
Jane Street New York $1.19T AUM 51.51% 1-Year Est. Return
MGO One Seven
MGO One Seven Beachwood, Ohio $6.08B AUM 21.44% 1-Year Est. Return
Commonwealth Equity Services
Commonwealth Equity Services Waltham, Massachusetts $77B AUM 19.24% 1-Year Est. Return
Group One Trading
Group One Trading Chicago, Illinois $73.3B AUM 63.67% 1-Year Est. Return
Osaic Holdings
Osaic Holdings Scottsdale, Arizona $83.6B AUM 19.78% 1-Year Est. Return
GK Wealth Management
GK Wealth Management Reno, Nevada $178M AUM 41.48% 1-Year Est. Return
Milestone Investment Advisors
Milestone Investment Advisors Middleton, Wisconsin $461M AUM 11.04% 1-Year Est. Return
Steward Partners Investment Advisory
Steward Partners Investment Advisory New York $21.5B AUM 22.23% 1-Year Est. Return
AE Wealth Management
AE Wealth Management Topeka, Kansas $23.2B AUM 20.52% 1-Year Est. Return
CNB Bank
CNB Bank Clearfield, Pennsylvania $259M AUM 22.08% 1-Year Est. Return

Simplex Trading's MARS Position: Q3 2026 in Review

Simplex Trading reduced its Roundhill Space & Technology ETF (MARS) stake by 29% in Q3 2026, selling an estimated $64.8K and leaving 6,051 shares worth $152K. The position accounts for ﹤0.01% of the portfolio, ranked #4946.

Simplex Trading first reported a position in MARS in Q2 2026 and has held it in 2 quarters since. The position peaked at $276K in Q2 2026. 17 funds tracked by Wall St. Rank hold MARS as of Q3 2026.

  • Simplex Trading held 6,051 shares of Roundhill Space & Technology ETF worth $152K as of Q3 2026.
  • Simplex Trading sold 2,487 Roundhill Space & Technology ETF shares in Q3 2026, an estimated $64.8K.
  • Roundhill Space & Technology ETF made up ﹤0.01% of Simplex Trading's portfolio in Q3 2026, its #4946 holding.
  • Simplex Trading first reported a position in Roundhill Space & Technology ETF in Q2 2026 and has held it in 2 quarters since.
  • Simplex Trading's Roundhill Space & Technology ETF position peaked at $276K in Q2 2026.
  • 17 funds tracked by Wall St. Rank held Roundhill Space & Technology ETF as of Q3 2026.

Based on Simplex Trading's 13F filing for Q3 2026, filed 4 Nov 2026.