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 | |
|---|---|---|---|---|---|---|
876
Icahn Enterprises
IEP
$4.77B
| $143K | ﹤0.01% |
2,953
-841
| -22% | -$40.7K |
|
877
Ingredion
INGR
$8.08B
| $141K | ﹤0.01% |
+1,702
| New | +$141K |
|
|
SWCH
878
DELISTED
Switch, Inc. Class A Common Stock
SWCH
| $141K | ﹤0.01% |
+7,946
| New | +$141K |
|
|
KNDI
879
Kandi Technologies Group
KNDI
$113M
| $140K | ﹤0.01% |
33,483
+3,966
| +13% | +$16.6K |
|
|
TWO
880
Two Harbors Investment
TWO
$1.06B
| $140K | ﹤0.01% |
+6,976
| New | +$140K |
|
881
STMicroelectronics
STM
$23B
| $139K | ﹤0.01% |
+5,087
| New | +$139K |
|
|
LFC
882
DELISTED
China Life Insurance Company Ltd.
LFC
| $139K | ﹤0.01% |
13,801
+2,708
| +24% | +$27.3K |
|
883
Invesco Solar ETF
TAN
$728M
| $138K | ﹤0.01% |
3,825
-31,429
| -89% | -$1.13M |
|
|
GAN
884
DELISTED
GAN Ltd
GAN
| $138K | ﹤0.01% |
+5,449
| New | +$138K |
|
885
Interpublic Group of Companies
IPG
$9.51B
| $138K | ﹤0.01% |
8,084
+5,275
| +188% | +$90K |
|
886
Pool Corp
POOL
$11.9B
| $138K | ﹤0.01% |
510
-3,231
| -86% | -$874K |
|
|
ISBC
887
DELISTED
Investors Bancorp, Inc.
ISBC
| $138K | ﹤0.01% |
16,268
+13,649
| +521% | +$116K |
|
888
Costamare
CMRE
$1.46B
| $137K | ﹤0.01% |
24,661
+21,973
| +817% | +$122K |
|
889
Invesco Actively Managed Exch-Traded Commodity Fd Tr Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF
PDBC
$4.53B
| $137K | ﹤0.01% |
+10,600
| New | +$137K |
|
890
iShares Core MSCI EAFE ETF
IEFA
$152B
| $136K | ﹤0.01% |
2,393
+2,255
| +1,634% | +$128K |
|
891
Worthington Enterprises
WOR
$3.22B
| $136K | ﹤0.01% |
5,951
+4,472
| +302% | +$102K |
|
892
iShares US Technology ETF
IYW
$23.8B
| $135K | ﹤0.01% |
+2,008
| New | +$135K |
|
|
SAFE
893
Safehold
SAFE
$1.15B
| $135K | ﹤0.01% |
2,253
+870
| +63% | +$52.1K |
|
894
Wolfspeed
WOLF
$230M
| $135K | ﹤0.01% |
2,293
-14,861
| -87% | -$875K |
|
|
BCOV
895
DELISTED
Brightcove, Inc.
BCOV
| $135K | ﹤0.01% |
+17,159
| New | +$135K |
|
896
Frontline
FRO
$5.02B
| $134K | ﹤0.01% |
19,224
-35,099
| -65% | -$245K |
|
897
Teekay
TK
$721M
| $134K | ﹤0.01% |
56,171
+13,369
| +31% | +$31.9K |
|
898
Virtu Financial
VIRT
$3.27B
| $134K | ﹤0.01% |
5,688
-56,154
| -91% | -$1.32M |
|
|
CLCT
899
DELISTED
Collectors Universe
CLCT
| $134K | ﹤0.01% |
+3,934
| New | +$134K |
|
|
HIMX
900
Himax Technologies
HIMX
$1.47B
| $133K | ﹤0.01% |
32,295
-2,623
| -8% | -$10.8K |
|