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 | |
|---|---|---|---|---|---|---|
626
Banco Bradesco
BBD
$33.1B
| $296K | ﹤0.01% |
+94,042
| New | +$296K |
|
627
Lantheus
LNTH
$3.74B
| $296K | ﹤0.01% |
20,725
+13,946
| +206% | +$199K |
|
628
Liberty Media Series C
FWONK
$25.4B
| $292K | ﹤0.01% |
9,551
-3,071
| -24% | -$93.9K |
|
629
ProShares UltraPro Short Russell2000
SRTY
$81.6M
| $291K | ﹤0.01% |
+1,084
| New | +$291K |
|
630
Skyworks Solutions
SWKS
$11.1B
| $291K | ﹤0.01% |
+2,282
| New | +$291K |
|
631
Grocery Outlet
GO
$1.72B
| $289K | ﹤0.01% |
7,087
+3,023
| +74% | +$123K |
|
|
MYOV
632
DELISTED
Myovant Sciences Ltd.
MYOV
| $289K | ﹤0.01% |
14,063
+12,952
| +1,166% | +$266K |
|
633
3D Systems Corporation
DDD
$269M
| $287K | ﹤0.01% |
41,098
-1,250
| -3% | -$8.73K |
|
634
Citi Trends
CTRN
$292M
| $286K | ﹤0.01% |
+14,187
| New | +$286K |
|
635
SiriusXM
SIRI
$8.17B
| $286K | ﹤0.01% |
4,885
-7,906
| -62% | -$463K |
|
636
Upland Software
UPLD
$70.5M
| $286K | ﹤0.01% |
8,239
-13,649
| -62% | -$474K |
|
637
Verisk Analytics
VRSK
$37.5B
| $286K | ﹤0.01% |
+1,683
| New | +$286K |
|
638
Teucrium Soybean Fund
SOYB
$25.3M
| $285K | ﹤0.01% |
20,441
+10,044
| +97% | +$140K |
|
639
Weis Markets
WMK
$1.76B
| $285K | ﹤0.01% |
+5,690
| New | +$285K |
|
640
Invesco DB Oil Fund
DBO
$228M
| $284K | ﹤0.01% |
+40,706
| New | +$284K |
|
641
Henry Schein
HSIC
$8.2B
| $284K | ﹤0.01% |
4,875
-5,501
| -53% | -$320K |
|
642
ICU Medical
ICUI
$3.22B
| $284K | ﹤0.01% |
+1,542
| New | +$284K |
|
643
EPAM Systems
EPAM
$9.19B
| $282K | ﹤0.01% |
+1,120
| New | +$282K |
|
644
Kura Oncology
KURA
$695M
| $281K | ﹤0.01% |
17,287
+13,944
| +417% | +$227K |
|
|
RUTH
645
DELISTED
Ruth's Hospitality Group, Inc.
RUTH
| $281K | ﹤0.01% |
34,472
+28,672
| +494% | +$234K |
|
|
TTM
646
DELISTED
Tata Motors Limited
TTM
| $281K | ﹤0.01% |
42,817
+18,894
| +79% | +$124K |
|
647
Purple Innovation
PRPL
$115M
| $278K | ﹤0.01% |
+15,484
| New | +$278K |
|
648
FuelCell Energy
FCEL
$118M
| $275K | ﹤0.01% |
4,065
+108
| +3% | +$7.31K |
|
649
Invesco CurrencyShares Japanese Yen Trust
FXY
$562M
| $274K | ﹤0.01% |
3,125
-64,277
| -95% | -$5.64M |
|
650
Ocular Therapeutix
OCUL
$2.22B
| $274K | ﹤0.01% |
32,948
+24,521
| +291% | +$204K |
|