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 |
Amazon
AMZN
|
+$102M |
| 2 |
TSMC
TSM
|
+$29.6M |
| 3 |
JPMorgan Chase
JPM
|
+$21.9M |
| 4 |
Boeing
BA
|
+$18.8M |
| 5 |
Target
TGT
|
+$13.5M |
Top Sells
| 1 |
SPDR Gold Trust
GLD
|
+$94.2M |
| 2 |
Tesla
TSLA
|
+$91.2M |
| 3 |
Invesco QQQ Trust
QQQ
|
+$81.5M |
| 4 |
NVIDIA
NVDA
|
+$60M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
+$40.5M |
Sector Composition
| 1 | Consumer Discretionary | 21.73% |
| 2 | Technology | 16.48% |
| 3 | Healthcare | 9.06% |
| 4 | Financials | 8.3% |
| 5 | Communication Services | 7.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1526
Global Industrial
GIC
$1.42B
| $25K | ﹤0.01% |
1,055
+573
| +119% | +$13.6K |
|
|
GMRE
1527
Global Medical REIT
GMRE
$512M
| $25K | ﹤0.01% |
1,867
-1,014
| -35% | -$13.6K |
|
1528
Harmonic Inc
HLIT
$1.13B
| $25K | ﹤0.01% |
+4,619
| New | +$25K |
|
1529
ProShares UltraShort Bloomberg Natural Gas
KOLD
$194M
| $25K | ﹤0.01% |
+68
| New | +$25K |
|
1530
MannKind Corp
MNKD
$1.71B
| $25K | ﹤0.01% |
13,494
-42,600
| -76% | -$78.9K |
|
1531
NeoGenomics
NEO
$1.03B
| $25K | ﹤0.01% |
704
-564
| -44% | -$20K |
|
1532
Reading International Class A
RDI
$33.8M
| $25K | ﹤0.01% |
7,872
-10,295
| -57% | -$32.7K |
|
1533
Siebert Financial
SIEB
$118M
| $25K | ﹤0.01% |
7,981
+5,059
| +173% | +$15.8K |
|
1534
AdvisorShares Pure Cannabis ETF
YOLO
$40M
| $25K | ﹤0.01% |
2,384
+1,080
| +83% | +$11.3K |
|
|
DS
1535
DELISTED
Drive Shack Inc.
DS
| $25K | ﹤0.01% |
+22,445
| New | +$25K |
|
|
QTS
1536
DELISTED
QTS REALTY TRUST, INC.
QTS
| $25K | ﹤0.01% |
409
-1,557
| -79% | -$95.2K |
|
|
ETFC
1537
DELISTED
E*Trade Financial Corporation
ETFC
| $25K | ﹤0.01% |
+500
| New | +$25K |
|
|
ORBC
1538
DELISTED
ORBCOMM, Inc.
ORBC
| $25K | ﹤0.01% |
7,476
-6,908
| -48% | -$23.1K |
|
|
CIT
1539
DELISTED
CIT Group Inc.
CIT
| $25K | ﹤0.01% |
+1,438
| New | +$25K |
|
1540
Federal Agricultural Mortgage
AGM
$2.15B
| $24K | ﹤0.01% |
+387
| New | +$24K |
|
1541
Buckle
BKE
$3.04B
| $24K | ﹤0.01% |
+1,213
| New | +$24K |
|
1542
Fulton Financial
FULT
$3.54B
| $24K | ﹤0.01% |
2,598
+1,488
| +134% | +$13.7K |
|
1543
Genie Energy
GNE
$404M
| $24K | ﹤0.01% |
+3,123
| New | +$24K |
|
|
INN
1544
Summit Hotel Properties
INN
$623M
| $24K | ﹤0.01% |
+4,694
| New | +$24K |
|
1545
Kforce
KFRC
$567M
| $24K | ﹤0.01% |
765
+531
| +227% | +$16.7K |
|
1546
Prestige Consumer Healthcare
PBH
$3.11B
| $24K | ﹤0.01% |
660
+77
| +13% | +$2.8K |
|
1547
Televisa
TV
$1.54B
| $24K | ﹤0.01% |
3,990
-1,860
| -32% | -$11.2K |
|
1548
Westlake Chemical Partners
WLKP
$763M
| $24K | ﹤0.01% |
1,287
-3,858
| -75% | -$71.9K |
|
|
SRNE
1549
DELISTED
Sorrento Therapeutics, Inc.
SRNE
| $24K | ﹤0.01% |
2,220
+470
| +27% | +$5.08K |
|
|
LEAF
1550
DELISTED
Leaf Group Ltd.
LEAF
| $24K | ﹤0.01% |
+4,828
| New | +$24K |
|