Simplex Trading Portfolio holdings
Simplex Trading, founded in 2004 and headquartered in Chicago, Illinois, is a technology-driven proprietary trading firm specializing in market-making and liquidity provision, primarily in U.S. equity options and futures options. Leveraging advanced proprietary software and data-driven analysis, the firm optimizes trading strategies and develops innovative solutions to capitalize on financial market opportunities, maintaining a competitive edge through automation and a collaborative team of technologists and traders. With a workforce exceeding 300 and led by CEO Erik Swanson since 2014, Simplex operates with a low-ego, high-intelligence culture, focusing on minimal bureaucracy and rapid execution, while also making strategic venture capital investments in fintech startups. Recognized as a top workplace in Chicago by Built In’s 2025 awards, Simplex continues to evolve, blending cutting-edge technology with a commitment to market efficiency and growth.
Top Buys
| 1 |
Apple
AAPL
|
+$186M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$86.2M |
| 3 |
SPDR S&P 500 ETF Trust
SPY
|
+$56.8M |
| 4 |
iShares Silver Trust
SLV
|
+$42.9M |
| 5 |
Advanced Micro Devices
AMD
|
+$36.5M |
Top Sells
| 1 |
Occidental Petroleum
OXY
|
+$44.4M |
| 2 |
Financial Select Sector SPDR Fund
XLF
|
+$42.8M |
| 3 |
Verizon
VZ
|
+$40.8M |
| 4 |
Direxion Daily S&P 500 Bull 3x Shares
SPXL
|
+$33.6M |
| 5 |
iShares China Large-Cap ETF
FXI
|
+$33M |
Sector Composition
| 1 | Technology | 23.31% |
| 2 | Consumer Discretionary | 13.02% |
| 3 | Industrials | 8.23% |
| 4 | Healthcare | 7.47% |
| 5 | Financials | 6.38% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
626
Invesco DB US Dollar Index Bearish Fund
UDN
$146M
| $670K | ﹤0.01% |
34,147
-5,929
| -15% | -$116K |
|
|
PSTH
627
DELISTED
Pershing Square Tontine Holdings, Ltd.
PSTH
| $666K | ﹤0.01% |
33,503
-77,789
| -70% | -$1.55M |
|
628
Sensient Technologies
SXT
$4.73B
| $663K | ﹤0.01% |
+7,899
| New | +$663K |
|
629
Innoviz Technologies
INVZ
$375M
| $662K | ﹤0.01% |
182,908
-81,868
| -31% | -$296K |
|
630
Element Solutions
ESI
$6.22B
| $660K | ﹤0.01% |
30,144
-37,415
| -55% | -$819K |
|
631
Watsco
WSO
$16.3B
| $660K | ﹤0.01% |
2,169
+910
| +72% | +$277K |
|
632
Wells Fargo
WFC
$259B
| $659K | ﹤0.01% |
13,618
-392,056
| -97% | -$19M |
|
633
Tecnoglass
TGLS
$3.31B
| $657K | ﹤0.01% |
26,037
-1,991
| -7% | -$50.2K |
|
|
POSH
634
DELISTED
Poshmark, Inc. Class A Common Stock
POSH
| $656K | ﹤0.01% |
51,867
+28,880
| +126% | +$365K |
|
|
SII
635
Sprott
SII
$1.76B
| $649K | ﹤0.01% |
12,927
-13,555
| -51% | -$681K |
|
636
Under Armour Class C
UA
$2.09B
| $648K | ﹤0.01% |
41,688
-28,235
| -40% | -$439K |
|
|
WRK
637
DELISTED
WestRock Company
WRK
| $648K | ﹤0.01% |
+13,797
| New | +$648K |
|
638
First Trust Health Care AlphaDEX Fund
FXH
$936M
| $647K | ﹤0.01% |
5,650
-863
| -13% | -$98.8K |
|
639
iShares US Technology ETF
IYW
$23.3B
| $647K | ﹤0.01% |
6,287
+1,752
| +39% | +$180K |
|
640
Olaplex Holdings
OLPX
$967M
| $647K | ﹤0.01% |
41,446
-7,042
| -15% | -$110K |
|
641
Safe Bulkers
SB
$462M
| $646K | ﹤0.01% |
135,845
-20,408
| -13% | -$97K |
|
|
AVTA
642
DELISTED
Avantax, Inc. Common Stock
AVTA
| $646K | ﹤0.01% |
+33,055
| New | +$646K |
|
643
Invesco DB Agriculture Fund
DBA
$802M
| $645K | ﹤0.01% |
29,482
-28,831
| -49% | -$631K |
|
644
First Horizon
FHN
$11.6B
| $644K | ﹤0.01% |
+27,456
| New | +$644K |
|
|
VZIO
645
DELISTED
VIZIO Holding Corp.
VZIO
| $643K | ﹤0.01% |
+72,396
| New | +$643K |
|
646
M&T Bank
MTB
$31.2B
| $642K | ﹤0.01% |
3,792
+1,883
| +99% | +$319K |
|
647
Advance Auto Parts
AAP
$3.57B
| $641K | ﹤0.01% |
+3,098
| New | +$641K |
|
648
Viper Energy
VNOM
$6.44B
| $640K | ﹤0.01% |
21,662
+4,333
| +25% | +$128K |
|
649
NovoCure
NVCR
$1.42B
| $638K | ﹤0.01% |
7,705
-3,102
| -29% | -$257K |
|
|
ATCO
650
DELISTED
Atlas Corp.
ATCO
| $638K | ﹤0.01% |
43,487
-3,787
| -8% | -$55.6K |
|