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 | |
|---|---|---|---|---|---|---|
|
CDK
251
DELISTED
CDK Global, Inc.
CDK
| $2.43M | ﹤0.01% |
+49,858
| New | +$2.43M |
|
252
Honeywell
HON
$136B
| $2.41M | ﹤0.01% |
12,372
-7,275
| -37% | -$1.42M |
|
253
iShares TIPS Bond ETF
TIP
$13.6B
| $2.4M | ﹤0.01% |
19,303
+19,148
| +12,354% | +$2.38M |
|
254
Fiverr
FVRR
$875M
| $2.4M | ﹤0.01% |
31,509
+5,802
| +23% | +$441K |
|
|
TGH
255
DELISTED
Textainer Group Holdings limited
TGH
| $2.4M | ﹤0.01% |
62,954
+54,959
| +687% | +$2.09M |
|
256
Gen Digital
GEN
$18.2B
| $2.4M | ﹤0.01% |
+90,337
| New | +$2.4M |
|
257
iPath Bloomberg Commodity Index Total Return ETN due 12 June 2036
DJP
$581M
| $2.39M | ﹤0.01% |
64,753
+49,639
| +328% | +$1.83M |
|
|
EGIO
258
DELISTED
Edgio, Inc. Common Stock
EGIO
| $2.37M | ﹤0.01% |
11,341
+10,046
| +776% | +$2.1M |
|
259
United States Natural Gas Fund
UNG
$615M
| $2.36M | ﹤0.01% |
29,947
-11,588
| -28% | -$914K |
|
260
iShares Russell 1000 Value ETF
IWD
$63.5B
| $2.34M | ﹤0.01% |
14,081
+9,686
| +220% | +$1.61M |
|
261
MGM Resorts International
MGM
$9.98B
| $2.32M | ﹤0.01% |
55,366
-162,770
| -75% | -$6.83M |
|
|
TELL
262
DELISTED
Tellurian Inc.
TELL
| $2.32M | ﹤0.01% |
437,250
+209,723
| +92% | +$1.11M |
|
263
Kinross Gold
KGC
$26.9B
| $2.31M | ﹤0.01% |
393,302
+78,389
| +25% | +$461K |
|
264
Cintas
CTAS
$82.4B
| $2.31M | ﹤0.01% |
21,732
+4,224
| +24% | +$449K |
|
265
Direxion Daily MSCI Brazil Bull 2X Shares
BRZU
$133M
| $2.31M | ﹤0.01% |
19,555
+14,849
| +316% | +$1.75M |
|
266
Direxion Daily S&P Biotech Bull 3X Shares
LABU
$770M
| $2.3M | ﹤0.01% |
7,331
+3,691
| +101% | +$1.16M |
|
267
3D Systems Corporation
DDD
$272M
| $2.28M | ﹤0.01% |
136,697
+48,292
| +55% | +$805K |
|
268
Exelixis
EXEL
$10.2B
| $2.28M | ﹤0.01% |
100,457
+67,935
| +209% | +$1.54M |
|
269
Citigroup
C
$176B
| $2.27M | ﹤0.01% |
42,450
+38,760
| +1,050% | +$2.07M |
|
270
Aurinia Pharmaceuticals
AUPH
$1.63B
| $2.25M | ﹤0.01% |
181,899
+87,258
| +92% | +$1.08M |
|
271
Nike
NKE
$109B
| $2.25M | ﹤0.01% |
+16,726
| New | +$2.25M |
|
|
DQ
272
Daqo New Energy
DQ
$1.96B
| $2.25M | ﹤0.01% |
54,450
-3,514
| -6% | -$145K |
|
273
Tencent Music
TME
$37.7B
| $2.25M | ﹤0.01% |
461,349
+203,527
| +79% | +$991K |
|
274
Merck
MRK
$212B
| $2.22M | ﹤0.01% |
27,072
-376,046
| -93% | -$30.9M |
|
275
Neurocrine Biosciences
NBIX
$14.3B
| $2.21M | ﹤0.01% |
+23,559
| New | +$2.21M |
|