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
|
$258M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
$75.7M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
$67.2M |
| 4 |
Alphabet (Google) Class C
GOOG
|
$59.4M |
| 5 |
Intel
INTC
|
$45.8M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
$56.8M |
| 2 |
Direxion Daily FTSE China Bull 3X Shares
YINN
|
$50.4M |
| 3 |
iShares Silver Trust
SLV
|
$45.9M |
| 4 |
Ford
F
|
$32.5M |
| 5 |
Exxon Mobil
XOM
|
$20.4M |
Sector Composition
| 1 | Technology | 26.01% |
| 2 | Consumer Discretionary | 9.82% |
| 3 | Communication Services | 9.82% |
| 4 | Financials | 8.68% |
| 5 | Healthcare | 6.23% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
76
GE Aerospace
GE
$292B
| $6.71M | 0.01% |
105,356
-66,752
| -39% | -$4.25M |
|
77
GSK
GSK
$79.6B
| $6.67M | 0.01% |
153,261
+42,412
| +38% | +$1.85M |
|
78
Halliburton
HAL
$18.5B
| $6.56M | 0.01% |
+209,164
| New | +$6.56M |
|
79
Citigroup
C
$174B
| $6.45M | 0.01% |
140,252
+97,802
| +230% | +$4.5M |
|
80
Shopify
SHOP
$182B
| $6.45M | 0.01% |
206,389
+164,902
| +397% | +$5.15M |
|
81
RH
RH
$4.12B
| $6.39M | 0.01% |
30,120
-7,392
| -20% | -$1.57M |
|
82
CF Industries
CF
$13.9B
| $6.38M | 0.01% |
74,420
+16,280
| +28% | +$1.4M |
|
|
WBA
83
DELISTED
Walgreens Boots Alliance
WBA
| $6.29M | 0.01% |
+165,946
| New | +$6.29M |
|
84
American Electric Power
AEP
$58.8B
| $6.18M | 0.01% |
64,397
+1,474
| +2% | +$141K |
|
85
Norwegian Cruise Line
NCLH
$11.5B
| $6.08M | 0.01% |
546,409
-493,933
| -47% | -$5.49M |
|
86
Take-Two Interactive
TTWO
$44.5B
| $6.04M | 0.01% |
49,299
+44,343
| +895% | +$5.43M |
|
87
Blackrock
BLK
$172B
| $5.55M | 0.01% |
+9,120
| New | +$5.55M |
|
88
Delta Air Lines
DAL
$40.5B
| $5.55M | 0.01% |
191,476
-99,718
| -34% | -$2.89M |
|
89
Vanguard Russell 2000 Growth ETF
VTWG
$1.07B
| $5.52M | 0.01% |
36,800
+36,647
| +23,952% | +$5.5M |
|
90
SPDR Gold Trust
GLD
$111B
| $5.45M | 0.01% |
+32,368
| New | +$5.45M |
|
91
iShares JPMorgan USD Emerging Markets Bond ETF
EMB
$13.4B
| $5.39M | 0.01% |
63,158
+29,466
| +87% | +$2.51M |
|
92
Direxion Daily S&P 500 Bear 3x Shares
SPXS
$448M
| $5.15M | 0.01% |
193,028
+183,455
| +1,916% | +$4.89M |
|
93
Northrop Grumman
NOC
$83.2B
| $5.14M | 0.01% |
10,742
-1,696
| -14% | -$812K |
|
94
ProShares Bitcoin Strategy ETF
BITO
$2.66B
| $5.09M | 0.01% |
438,165
+401,638
| +1,100% | +$4.66M |
|
95
The Mosaic Company
MOS
$10.4B
| $5.05M | 0.01% |
106,957
+102,794
| +2,469% | +$4.85M |
|
96
Direxion Daily Junior Gold Miners Index Bear 2X Shares
JDST
$47M
| $4.88M | 0.01% |
349,795
+247,667
| +243% | +$3.45M |
|
97
EOG Resources
EOG
$66.7B
| $4.87M | 0.01% |
+44,055
| New | +$4.87M |
|
98
Vale
VALE
$43.5B
| $4.86M | 0.01% |
332,094
+30,116
| +10% | +$441K |
|
99
DoorDash
DASH
$108B
| $4.65M | ﹤0.01% |
72,481
-43,533
| -38% | -$2.79M |
|
100
SAP
SAP
$315B
| $4.63M | ﹤0.01% |
+51,029
| New | +$4.63M |
|