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 | |
|---|---|---|---|---|---|---|
501
Tractor Supply
TSCO
$32.1B
| $439K | ﹤0.01% |
+16,660
| New | +$439K |
|
502
Yelp
YELP
$2.02B
| $439K | ﹤0.01% |
19,017
+15,189
| +397% | +$351K |
|
503
AllianceBernstein
AB
$4.29B
| $436K | ﹤0.01% |
16,041
-53,589
| -77% | -$1.46M |
|
504
LendingTree
TREE
$978M
| $433K | ﹤0.01% |
1,497
-1,754
| -54% | -$507K |
|
505
iShares MSCI Canada ETF
EWC
$3.24B
| $432K | ﹤0.01% |
16,718
-18,196
| -52% | -$470K |
|
506
TG Therapeutics
TGTX
$5.11B
| $431K | ﹤0.01% |
22,134
+15,877
| +254% | +$309K |
|
507
CyberArk
CYBR
$23.3B
| $430K | ﹤0.01% |
4,334
+1,621
| +60% | +$161K |
|
508
Direxion Daily S&P 500 Bull 3x Shares
SPXL
$5.49B
| $430K | ﹤0.01% |
10,300
+8,700
| +544% | +$363K |
|
509
iShare MSCI Eurozone ETF
EZU
$7.85B
| $428K | ﹤0.01% |
11,754
+10,901
| +1,278% | +$397K |
|
510
NNN REIT
NNN
$8.18B
| $427K | ﹤0.01% |
12,035
+10,650
| +769% | +$378K |
|
511
Diamondback Energy
FANG
$40.2B
| $424K | ﹤0.01% |
10,155
+3,751
| +59% | +$157K |
|
512
UGI
UGI
$7.43B
| $424K | ﹤0.01% |
+13,344
| New | +$424K |
|
513
Equinox Gold
EQX
$7.65B
| $422K | ﹤0.01% |
+37,650
| New | +$422K |
|
|
MFA
514
MFA Financial
MFA
$1.07B
| $422K | ﹤0.01% |
42,399
+37,722
| +807% | +$375K |
|
515
Verint Systems
VRNT
$1.23B
| $422K | ﹤0.01% |
18,368
-76,539
| -81% | -$1.76M |
|
516
Cemex
CX
$13.6B
| $421K | ﹤0.01% |
146,493
+118,467
| +423% | +$340K |
|
517
Ericsson
ERIC
$26.7B
| $421K | ﹤0.01% |
+45,303
| New | +$421K |
|
518
Southwest Airlines
LUV
$16.5B
| $416K | ﹤0.01% |
12,180
+12,020
| +7,513% | +$411K |
|
519
Hewlett Packard
HPE
$31B
| $415K | ﹤0.01% |
42,743
-35,750
| -46% | -$347K |
|
520
Emergent Biosolutions
EBS
$404M
| $413K | ﹤0.01% |
5,229
+2,479
| +90% | +$196K |
|
521
Marriott International Class A Common Stock
MAR
$71.9B
| $413K | ﹤0.01% |
4,821
-46,195
| -91% | -$3.96M |
|
522
Plains GP Holdings
PAGP
$3.64B
| $413K | ﹤0.01% |
+46,501
| New | +$413K |
|
523
Teradata
TDC
$1.99B
| $413K | ﹤0.01% |
19,860
-36,635
| -65% | -$762K |
|
|
EVBG
524
DELISTED
Everbridge, Inc. Common Stock
EVBG
| $413K | ﹤0.01% |
2,989
+2,595
| +659% | +$359K |
|
525
FTAI Aviation
FTAI
$15.8B
| $411K | ﹤0.01% |
37,054
+32,118
| +651% | +$356K |
|