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
|
+$80M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$45.3M |
| 3 |
Alphabet (Google) Class C
GOOG
|
+$38.8M |
| 4 |
Amazon
AMZN
|
+$38.6M |
| 5 |
Tesla
TSLA
|
+$36M |
Top Sells
| 1 |
Alibaba
BABA
|
+$46.4M |
| 2 |
Boeing
BA
|
+$29.8M |
| 3 |
SPDR Gold Trust
GLD
|
+$18.2M |
| 4 |
Biogen
BIIB
|
+$15.8M |
| 5 |
NVIDIA
NVDA
|
+$14.3M |
Sector Composition
| 1 | Technology | 22.73% |
| 2 | Consumer Discretionary | 17.54% |
| 3 | Communication Services | 10.03% |
| 4 | Healthcare | 9.29% |
| 5 | Industrials | 5.63% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
ATSG
651
DELISTED
Air Transport Services Group, Inc.
ATSG
| $265K | ﹤0.01% |
11,311
+8,291
| +275% | +$194K |
|
|
WLL
652
DELISTED
Whiting Petroleum Corporation
WLL
| $264K | ﹤0.01% |
+480
| New | +$264K |
|
653
Kratos Defense & Security Solutions
KTOS
$10.8B
| $262K | ﹤0.01% |
14,590
+8,800
| +152% | +$158K |
|
654
FTAI Aviation
FTAI
$17.1B
| $260K | ﹤0.01% |
15,621
+8,819
| +130% | +$147K |
|
655
HubSpot
HUBS
$26.3B
| $260K | ﹤0.01% |
+1,641
| New | +$260K |
|
|
JOYY
656
JOYY Inc. American Depositary Shares
JOYY
$3.27B
| $259K | ﹤0.01% |
4,912
-15,850
| -76% | -$836K |
|
657
iShares MSCI USA Min Vol Factor ETF
USMV
$23.4B
| $258K | ﹤0.01% |
3,945
+2,258
| +134% | +$148K |
|
658
Manulife Financial
MFC
$52.2B
| $257K | ﹤0.01% |
+12,688
| New | +$257K |
|
|
AUY
659
DELISTED
Yamana Gold, Inc.
AUY
| $257K | ﹤0.01% |
65,209
+16,374
| +34% | +$64.5K |
|
660
Jack Henry & Associates
JKHY
$11.8B
| $256K | ﹤0.01% |
1,760
-591
| -25% | -$86K |
|
661
Direxion Daily Gold Miners Index Bull 2X Shares
NUGT
$870M
| $256K | ﹤0.01% |
1,473
-16,160
| -92% | -$2.81M |
|
662
Snap
SNAP
$12.2B
| $256K | ﹤0.01% |
+15,733
| New | +$256K |
|
|
MGI
663
DELISTED
MoneyGram International, Inc. New
MGI
| $255K | ﹤0.01% |
+121,892
| New | +$255K |
|
|
RESI
664
DELISTED
Front Yard Residential Corporation Common Stock
RESI
| $255K | ﹤0.01% |
20,673
+20,306
| +5,533% | +$250K |
|
|
MDCO
665
DELISTED
Medicines Co
MDCO
| $254K | ﹤0.01% |
+3,000
| New | +$254K |
|
666
Blackrock
BLK
$171B
| $253K | ﹤0.01% |
+504
| New | +$253K |
|
667
ProShares Ultra Bloomberg Natural Gas
BOIL
$132M
| $253K | ﹤0.01% |
30
+7
| +30% | +$59K |
|
|
PRFT
668
DELISTED
Perficient Inc
PRFT
| $253K | ﹤0.01% |
5,497
+2,964
| +117% | +$136K |
|
669
Simply Good Foods
SMPL
$2.83B
| $251K | ﹤0.01% |
8,799
+1,778
| +25% | +$50.7K |
|
670
LPL Financial
LPLA
$27.2B
| $248K | ﹤0.01% |
2,693
-18,787
| -87% | -$1.73M |
|
|
EVA
671
DELISTED
Enviva Inc.
EVA
| $248K | ﹤0.01% |
6,666
+4,648
| +230% | +$173K |
|
|
SEAC
672
DELISTED
Seachange International Inc
SEAC
| $247K | ﹤0.01% |
2,951
+1,121
| +61% | +$93.8K |
|
673
ProShares Ultra Gold
UGL
$628M
| $246K | ﹤0.01% |
20,120
+7,348
| +58% | +$89.8K |
|
|
EBIX
674
DELISTED
Ebix Inc
EBIX
| $246K | ﹤0.01% |
7,381
-2,639
| -26% | -$88K |
|
675
Century Aluminum
CENX
$2.03B
| $245K | ﹤0.01% |
32,718
+28,343
| +648% | +$212K |
|