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
|
$586M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
$82.5M |
| 3 |
Intel
INTC
|
$40.4M |
| 4 |
Invesco QQQ Trust
QQQ
|
$39.4M |
| 5 |
Uber
UBER
|
$36.3M |
Top Sells
| 1 |
NVIDIA
NVDA
|
$130M |
| 2 |
Pinduoduo
PDD
|
$95.7M |
| 3 |
Boeing
BA
|
$56.2M |
| 4 |
KraneShares CSI China Internet ETF
KWEB
|
$40.7M |
| 5 |
Microsoft
MSFT
|
$40.5M |
Sector Composition
| 1 | Technology | 34.29% |
| 2 | Consumer Discretionary | 11.38% |
| 3 | Healthcare | 9.65% |
| 4 | Financials | 6.33% |
| 5 | Communication Services | 5.52% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
601
Ollie's Bargain Outlet
OLLI
$8.18B
| $577K | ﹤0.01% |
+5,265
| New | +$577K |
|
|
BPMC
602
DELISTED
Blueprint Medicines
BPMC
| $576K | ﹤0.01% |
+6,608
| New | +$576K |
|
603
W.W. Grainger
GWW
$47.5B
| $575K | ﹤0.01% |
546
+105
| +24% | +$111K |
|
604
Birkenstock
BIRK
$9.23B
| $574K | ﹤0.01% |
+10,134
| New | +$574K |
|
605
HF Sinclair
DINO
$9.56B
| $571K | ﹤0.01% |
16,293
+4,191
| +35% | +$147K |
|
606
Jackson Financial
JXN
$6.65B
| $568K | ﹤0.01% |
6,528
+2,419
| +59% | +$210K |
|
607
Global X Silver Miners ETF NEW
SIL
$2.92B
| $566K | ﹤0.01% |
17,818
-20,457
| -53% | -$650K |
|
608
Inspire Medical Systems
INSP
$2.56B
| $563K | ﹤0.01% |
+3,039
| New | +$563K |
|
609
iShares Russell 1000 Value ETF
IWD
$63.5B
| $562K | ﹤0.01% |
+3,040
| New | +$562K |
|
610
DigitalBridge
DBRG
$2.04B
| $559K | ﹤0.01% |
+49,599
| New | +$559K |
|
|
LGF.A
611
DELISTED
Lions Gate Entertainment Corp. Class A Voting Shares
LGF.A
| $557K | ﹤0.01% |
65,244
+40,703
| +166% | +$347K |
|
612
InterDigital
IDCC
$7.43B
| $553K | ﹤0.01% |
+2,859
| New | +$553K |
|
|
JMIA
613
Jumia Technologies
JMIA
$1.09B
| $551K | ﹤0.01% |
144,444
-31,912
| -18% | -$122K |
|
614
SSR Mining
SSRM
$4.28B
| $551K | ﹤0.01% |
79,234
+57,604
| +266% | +$401K |
|
615
HEICO
HEI
$44.8B
| $549K | ﹤0.01% |
+2,312
| New | +$549K |
|
616
KeyCorp
KEY
$20.8B
| $547K | ﹤0.01% |
31,918
+11,623
| +57% | +$199K |
|
617
Healthpeak Properties
DOC
$12.8B
| $544K | ﹤0.01% |
26,853
+8,615
| +47% | +$175K |
|
618
Republic Services
RSG
$71.7B
| $539K | ﹤0.01% |
+2,680
| New | +$539K |
|
619
Elanco Animal Health
ELAN
$9.16B
| $538K | ﹤0.01% |
44,439
-210,903
| -83% | -$2.55M |
|
620
Vermilion Energy
VET
$1.12B
| $538K | ﹤0.01% |
57,339
+47,668
| +493% | +$447K |
|
|
SILV
621
DELISTED
SilverCrest Metals Inc. Common Shares
SILV
| $538K | ﹤0.01% |
59,197
-99,658
| -63% | -$906K |
|
622
ProShares UltraShort S&P500
SDS
$442M
| $537K | ﹤0.01% |
27,341
+18,760
| +219% | +$368K |
|
623
ProShares UltraPro Russell2000
URTY
$397M
| $537K | ﹤0.01% |
+10,931
| New | +$537K |
|
624
Sandstorm Gold
SAND
$3.37B
| $535K | ﹤0.01% |
96,015
+21,452
| +29% | +$120K |
|
625
Nordic American Tanker
NAT
$692M
| $534K | ﹤0.01% |
+213,741
| New | +$534K |
|