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 | 8.24% |
| 4 | Healthcare | 7.47% |
| 5 | Financials | 6.38% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
326
Clorox
CLX
$15.5B
| $1.78M | ﹤0.01% |
12,825
+1,804
| +16% | +$251K |
|
327
United States Oil Fund
USO
$939M
| $1.78M | ﹤0.01% |
24,048
-128,534
| -84% | -$9.52M |
|
328
Blackstone
BX
$133B
| $1.77M | ﹤0.01% |
13,951
+4,497
| +48% | +$571K |
|
|
FRC
329
DELISTED
First Republic Bank
FRC
| $1.77M | ﹤0.01% |
+10,916
| New | +$1.77M |
|
330
Tenet Healthcare
THC
$17.3B
| $1.77M | ﹤0.01% |
20,549
-27,188
| -57% | -$2.34M |
|
331
Dynavax Technologies
DVAX
$1.18B
| $1.75M | ﹤0.01% |
161,631
+82,856
| +105% | +$898K |
|
332
Digital Turbine
APPS
$483M
| $1.75M | ﹤0.01% |
39,889
-23,553
| -37% | -$1.03M |
|
333
Coterra Energy
CTRA
$18.3B
| $1.74M | ﹤0.01% |
64,527
-72,265
| -53% | -$1.95M |
|
334
CoreCivic
CXW
$2.11B
| $1.74M | ﹤0.01% |
155,333
-20,362
| -12% | -$227K |
|
335
Manchester United
MANU
$2.71B
| $1.73M | ﹤0.01% |
119,366
+98,035
| +460% | +$1.42M |
|
336
Ambarella
AMBA
$3.54B
| $1.73M | ﹤0.01% |
16,450
+15,708
| +2,117% | +$1.65M |
|
|
BLDP
337
Ballard Power Systems
BLDP
$598M
| $1.72M | ﹤0.01% |
148,193
+22,978
| +18% | +$267K |
|
338
Energy Select Sector SPDR Fund
XLE
$26.7B
| $1.72M | ﹤0.01% |
22,490
-141,139
| -86% | -$10.8M |
|
339
BRC Inc
BRCC
$174M
| $1.72M | ﹤0.01% |
+82,238
| New | +$1.72M |
|
340
Fluor
FLR
$6.72B
| $1.71M | ﹤0.01% |
59,717
+9,087
| +18% | +$261K |
|
|
SBNY
341
DELISTED
Signature Bank
SBNY
| $1.71M | ﹤0.01% |
5,832
+1,400
| +32% | +$411K |
|
342
CrowdStrike
CRWD
$105B
| $1.71M | ﹤0.01% |
7,516
-4,685
| -38% | -$1.06M |
|
343
C3.ai
AI
$2.15B
| $1.7M | ﹤0.01% |
74,897
-80,593
| -52% | -$1.83M |
|
344
ACM Research
ACMR
$1.76B
| $1.69M | ﹤0.01% |
81,641
+77,576
| +1,908% | +$1.6M |
|
345
Hilton Worldwide
HLT
$64B
| $1.67M | ﹤0.01% |
11,029
-12,534
| -53% | -$1.9M |
|
346
Sempra
SRE
$52.9B
| $1.66M | ﹤0.01% |
+19,760
| New | +$1.66M |
|
347
Real Estate Select Sector SPDR Fund
XLRE
$7.66B
| $1.65M | ﹤0.01% |
34,250
+27,998
| +448% | +$1.35M |
|
348
CyberArk
CYBR
$23.3B
| $1.65M | ﹤0.01% |
9,769
-85
| -0.9% | -$14.3K |
|
349
McKesson
MCK
$85.5B
| $1.64M | ﹤0.01% |
5,361
-1,365
| -20% | -$418K |
|
350
Rivian
RIVN
$17.2B
| $1.64M | ﹤0.01% |
+32,658
| New | +$1.64M |
|