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 |
Invesco QQQ Trust
QQQ
|
$85.4M |
| 2 |
SPDR Gold Trust
GLD
|
$75.9M |
| 3 |
NVIDIA
NVDA
|
$42.6M |
| 4 |
Netflix
NFLX
|
$41.1M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
$40.5M |
Top Sells
| 1 |
Apple
AAPL
|
$65.7M |
| 2 |
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
|
$25.5M |
| 3 |
SPDR S&P 500 ETF Trust
SPY
|
$24.4M |
| 4 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
$24.3M |
| 5 |
Broadcom
AVGO
|
$21.3M |
Sector Composition
| 1 | Technology | 15.2% |
| 2 | Consumer Discretionary | 14.52% |
| 3 | Communication Services | 10.57% |
| 4 | Healthcare | 8.15% |
| 5 | Financials | 7.15% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
251
iShares TIPS Bond ETF
TIP
$13.6B
| $1.21M | ﹤0.01% |
9,813
-39,584
| -80% | -$4.86M |
|
|
BLUE
252
DELISTED
bluebird bio
BLUE
| $1.2M | ﹤0.01% |
1,524
-512
| -25% | -$404K |
|
253
BCE
BCE
$23.1B
| $1.2M | ﹤0.01% |
+28,798
| New | +$1.2M |
|
254
Moody's
MCO
$89.5B
| $1.18M | ﹤0.01% |
4,313
-1,143
| -21% | -$314K |
|
255
Cardinal Health
CAH
$35.7B
| $1.18M | ﹤0.01% |
22,647
-5,261
| -19% | -$274K |
|
|
XEC
256
DELISTED
CIMAREX ENERGY CO
XEC
| $1.18M | ﹤0.01% |
42,843
-14,827
| -26% | -$407K |
|
257
Xtrackers Harvest CSI 300 China A-Shares ETF
ASHR
$2.31B
| $1.18M | ﹤0.01% |
39,580
-31,411
| -44% | -$932K |
|
258
iQIYI
IQ
$2.61B
| $1.17M | ﹤0.01% |
50,651
-6,684
| -12% | -$155K |
|
259
VF Corp
VFC
$5.86B
| $1.16M | ﹤0.01% |
+19,053
| New | +$1.16M |
|
260
Tradeweb Markets
TW
$25.4B
| $1.16M | ﹤0.01% |
+19,950
| New | +$1.16M |
|
261
Radware
RDWR
$1.07B
| $1.16M | ﹤0.01% |
49,011
-19,308
| -28% | -$455K |
|
262
iShares MSCI United Kingdom ETF
EWU
$2.9B
| $1.15M | ﹤0.01% |
44,760
+2,281
| +5% | +$58.8K |
|
263
Sociedad Química y Minera de Chile
SQM
$13.1B
| $1.15M | ﹤0.01% |
43,979
+22,904
| +109% | +$597K |
|
264
Direxion Daily Financial Bull 3x Shares
FAS
$2.59B
| $1.13M | ﹤0.01% |
36,213
-75,291
| -68% | -$2.36M |
|
265
America Movil
AMX
$59.1B
| $1.13M | ﹤0.01% |
89,037
+81,254
| +1,044% | +$1.03M |
|
266
Fair Isaac
FICO
$36.8B
| $1.11M | ﹤0.01% |
2,661
-421
| -14% | -$176K |
|
|
DQ
267
Daqo New Energy
DQ
$1.96B
| $1.11M | ﹤0.01% |
74,835
+57,950
| +343% | +$860K |
|
268
Ralph Lauren
RL
$18.9B
| $1.11M | ﹤0.01% |
15,263
+8,341
| +120% | +$604K |
|
269
W.P. Carey
WPC
$14.9B
| $1.11M | ﹤0.01% |
16,687
+8,485
| +103% | +$562K |
|
|
VNET
270
VNET Group
VNET
$2.13B
| $1.1M | ﹤0.01% |
+46,280
| New | +$1.1M |
|
271
CenterPoint Energy
CNP
$24.7B
| $1.1M | ﹤0.01% |
58,925
+58,911
| +420,793% | +$1.1M |
|
272
Western Digital
WDC
$31.9B
| $1.09M | ﹤0.01% |
32,760
-16,135
| -33% | -$538K |
|
|
CLDR
273
DELISTED
Cloudera, Inc.
CLDR
| $1.09M | ﹤0.01% |
85,524
+75,724
| +773% | +$962K |
|
274
Vanguard Health Care ETF
VHT
$15.7B
| $1.08M | ﹤0.01% |
+5,626
| New | +$1.08M |
|
275
Invesco DB Agriculture Fund
DBA
$804M
| $1.08M | ﹤0.01% |
79,862
+47,725
| +149% | +$644K |
|