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
|
+$258M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$75.7M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$67.2M |
| 4 |
Alphabet (Google) Class C
GOOG
|
+$59.4M |
| 5 |
Intel
INTC
|
+$45.8M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
+$56.8M |
| 2 |
iShares Silver Trust
SLV
|
+$45.9M |
| 3 |
Ford
F
|
+$32.5M |
| 4 |
Exxon Mobil
XOM
|
+$20.4M |
| 5 |
Caterpillar
CAT
|
+$19.2M |
Sector Composition
| 1 | Technology | 26.01% |
| 2 | Consumer Discretionary | 9.82% |
| 3 | Communication Services | 9.82% |
| 4 | Financials | 8.68% |
| 5 | Healthcare | 6.23% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
676
iShares MSCI Europe Financials ETF
EUFN
$4.41B
| $341K | ﹤0.01% |
21,544
+12,179
| +130% | +$193K |
|
677
Novo Nordisk
NVO
$242B
| $340K | ﹤0.01% |
6,106
-31,782
| -84% | -$1.77M |
|
|
IMGN
678
DELISTED
Immunogen Inc
IMGN
| $339K | ﹤0.01% |
75,376
-40,914
| -35% | -$184K |
|
679
PTC Therapeutics
PTCT
$4.63B
| $337K | ﹤0.01% |
+8,427
| New | +$337K |
|
680
Expeditors International
EXPD
$16.5B
| $336K | ﹤0.01% |
3,455
-91
| -3% | -$8.85K |
|
681
ProShares Ultra S&P500
SSO
$7.29B
| $336K | ﹤0.01% |
+7,488
| New | +$336K |
|
682
Kohl's
KSS
$1.8B
| $335K | ﹤0.01% |
9,387
-62,774
| -87% | -$2.24M |
|
683
Stride
LRN
$6.89B
| $335K | ﹤0.01% |
+8,234
| New | +$335K |
|
684
Lesaka Technologies
LSAK
$384M
| $335K | ﹤0.01% |
65,318
+65,155
| +39,972% | +$334K |
|
685
Direxion Daily 20+ Year Treasury Bear 3X Shares
TMV
$162M
| $335K | ﹤0.01% |
+13,228
| New | +$335K |
|
|
BREZ
686
DELISTED
Breeze Holdings Acquisition Corp. Common Stock
BREZ
| $335K | ﹤0.01% |
32,688
+20,949
| +178% | +$215K |
|
687
fuboTV
FUBO
$1.35B
| $334K | ﹤0.01% |
135,371
+129,342
| +2,145% | +$319K |
|
688
Haverty Furniture Companies
HVT
$380M
| $331K | ﹤0.01% |
14,319
+9,368
| +189% | +$217K |
|
689
Builders FirstSource
BLDR
$15.5B
| $330K | ﹤0.01% |
6,154
-2,556
| -29% | -$137K |
|
|
CERE
690
DELISTED
Cerevel Therapeutics Holdings, Inc. Common Stock
CERE
| $330K | ﹤0.01% |
+12,491
| New | +$330K |
|
691
Dillards
DDS
$8.88B
| $329K | ﹤0.01% |
+1,496
| New | +$329K |
|
692
Direxion Daily CSI 300 China A Share Bull 2X Shares
CHAU
$157M
| $327K | ﹤0.01% |
10,981
+7,680
| +233% | +$229K |
|
693
Lear
LEA
$5.76B
| $327K | ﹤0.01% |
+2,599
| New | +$327K |
|
694
GlobalFoundries
GFS
$17.7B
| $326K | ﹤0.01% |
8,097
+3,424
| +73% | +$138K |
|
|
RBAC
695
DELISTED
RedBall Acquisition Corp.
RBAC
| $326K | ﹤0.01% |
+32,801
| New | +$326K |
|
696
Brighthouse Financial
BHF
$2.79B
| $324K | ﹤0.01% |
+7,918
| New | +$324K |
|
|
RXDX
697
DELISTED
Prometheus Biosciences, Inc. Common Stock
RXDX
| $323K | ﹤0.01% |
+11,448
| New | +$323K |
|
698
Truist Financial
TFC
$58.2B
| $322K | ﹤0.01% |
6,790
-30,798
| -82% | -$1.46M |
|
699
PVH
PVH
$3.93B
| $317K | ﹤0.01% |
5,578
-12,187
| -69% | -$693K |
|
700
International Money Express
IMXI
$430M
| $314K | ﹤0.01% |
+15,369
| New | +$314K |
|