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 |
NVIDIA
NVDA
|
$216M |
| 2 |
Apple
AAPL
|
$159M |
| 3 |
Broadcom
AVGO
|
$128M |
| 4 |
Booking.com
BKNG
|
$62.2M |
| 5 |
SPDR S&P 500 ETF Trust
SPY
|
$61.9M |
Top Sells
| 1 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$141M |
| 2 |
Amazon
AMZN
|
$53.1M |
| 3 |
TSMC
TSM
|
$45.7M |
| 4 |
Netflix
NFLX
|
$45.3M |
| 5 |
Pfizer
PFE
|
$38.3M |
Sector Composition
| 1 | Technology | 34.74% |
| 2 | Communication Services | 9% |
| 3 | Consumer Discretionary | 8.67% |
| 4 | Healthcare | 8.07% |
| 5 | Financials | 6.4% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
126
Eli Lilly
LLY
$666B
| $4.12M | ﹤0.01% |
+5,286
| New | +$4.12M |
|
127
Home Depot
HD
$410B
| $4.11M | ﹤0.01% |
11,202
-20,344
| -64% | -$7.46M |
|
128
Flex
FLEX
$20.6B
| $4.1M | ﹤0.01% |
82,051
+79,725
| +3,428% | +$3.98M |
|
129
Ford
F
$46.5B
| $4.07M | ﹤0.01% |
375,382
-848,218
| -69% | -$9.2M |
|
130
DocuSign
DOCU
$15.4B
| $4.04M | ﹤0.01% |
51,883
+33,458
| +182% | +$2.61M |
|
131
Fluor
FLR
$6.7B
| $4.04M | ﹤0.01% |
78,818
+77,852
| +8,059% | +$3.99M |
|
132
Direxion Daily Semiconductor Bear 3X Shares
SOXS
$1.48B
| $3.97M | ﹤0.01% |
+503,236
| New | +$3.97M |
|
|
SII
133
Sprott
SII
$1.72B
| $3.96M | ﹤0.01% |
57,284
+28,056
| +96% | +$1.94M |
|
|
BTC
134
Grayscale Bitcoin Mini Trust ETF
BTC
$4.8B
| $3.95M | ﹤0.01% |
82,688
+50,567
| +157% | +$2.41M |
|
135
AGNC Investment
AGNC
$10.6B
| $3.91M | ﹤0.01% |
425,645
-98,762
| -19% | -$907K |
|
136
Sanmina
SANM
$6.39B
| $3.9M | ﹤0.01% |
+39,845
| New | +$3.9M |
|
137
Pitney Bowes
PBI
$2.11B
| $3.85M | ﹤0.01% |
353,127
+171,309
| +94% | +$1.87M |
|
138
Global X Silver Miners ETF NEW
SIL
$2.86B
| $3.8M | ﹤0.01% |
78,910
+4,628
| +6% | +$223K |
|
139
Futu Holdings
FUTU
$26.3B
| $3.79M | ﹤0.01% |
30,673
+18,722
| +157% | +$2.31M |
|
140
TeraWulf
WULF
$3.48B
| $3.78M | ﹤0.01% |
863,094
+560,895
| +186% | +$2.46M |
|
|
AEVA
141
Aeva Technologies
AEVA
$746M
| $3.75M | ﹤0.01% |
99,201
+71,462
| +258% | +$2.7M |
|
|
GAP
142
The Gap, Inc.
GAP
$8.88B
| $3.73M | ﹤0.01% |
+171,061
| New | +$3.73M |
|
143
CyberArk
CYBR
$23.1B
| $3.73M | ﹤0.01% |
9,159
+6,927
| +310% | +$2.82M |
|
|
PARA
144
DELISTED
Paramount Global Class B
PARA
| $3.72M | ﹤0.01% |
+288,587
| New | +$3.72M |
|
145
Curtiss-Wright
CW
$18.1B
| $3.62M | ﹤0.01% |
+7,403
| New | +$3.62M |
|
146
iShares 3-7 Year Treasury Bond ETF
IEI
$16.8B
| $3.59M | ﹤0.01% |
30,142
+17,184
| +133% | +$2.05M |
|
147
GraniteShares 2x Long AMD Daily ETF
AMDL
$523M
| $3.59M | ﹤0.01% |
421,723
+283,100
| +204% | +$2.41M |
|
148
FedEx
FDX
$53.2B
| $3.58M | ﹤0.01% |
15,752
+7,884
| +100% | +$1.79M |
|
149
Bloom Energy
BE
$12.8B
| $3.56M | ﹤0.01% |
148,869
+35,689
| +32% | +$853K |
|
150
FirstEnergy
FE
$25.1B
| $3.5M | ﹤0.01% |
86,990
-78,489
| -47% | -$3.16M |
|