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
|
$186M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$86.2M |
| 3 |
SPDR S&P 500 ETF Trust
SPY
|
$56.8M |
| 4 |
iShares Silver Trust
SLV
|
$42.9M |
| 5 |
Advanced Micro Devices
AMD
|
$36.5M |
Top Sells
| 1 |
Occidental Petroleum
OXY
|
$44.4M |
| 2 |
Financial Select Sector SPDR Fund
XLF
|
$42.8M |
| 3 |
Verizon
VZ
|
$40.8M |
| 4 |
Direxion Daily S&P 500 Bull 3x Shares
SPXL
|
$33.6M |
| 5 |
iShares China Large-Cap ETF
FXI
|
$33M |
Sector Composition
| 1 | Technology | 23.31% |
| 2 | Consumer Discretionary | 13.02% |
| 3 | Industrials | 8.24% |
| 4 | Healthcare | 7.47% |
| 5 | Financials | 6.38% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
451
Shift4
FOUR
$6.01B
| $1.15M | ﹤0.01% |
+18,640
| New | +$1.15M |
|
452
Boston Properties
BXP
$12.2B
| $1.15M | ﹤0.01% |
8,902
+7,872
| +764% | +$1.01M |
|
453
Quest Diagnostics
DGX
$20.5B
| $1.15M | ﹤0.01% |
+8,374
| New | +$1.15M |
|
454
Capri Holdings
CPRI
$2.53B
| $1.14M | ﹤0.01% |
22,242
+5,855
| +36% | +$301K |
|
|
ISEE
455
DELISTED
IVERIC bio, Inc. Common Stock
ISEE
| $1.14M | ﹤0.01% |
67,494
-41,259
| -38% | -$694K |
|
|
ATSG
456
DELISTED
Air Transport Services Group, Inc.
ATSG
| $1.13M | ﹤0.01% |
+33,659
| New | +$1.13M |
|
457
GoPro
GPRO
$236M
| $1.12M | ﹤0.01% |
131,732
+20,969
| +19% | +$179K |
|
|
BPT
458
DELISTED
BP Prudhoe Bay Royalty Trust
BPT
| $1.12M | ﹤0.01% |
74,943
+47,102
| +169% | +$705K |
|
459
Stratasys
SSYS
$871M
| $1.12M | ﹤0.01% |
44,148
+39,540
| +858% | +$1M |
|
460
Align Technology
ALGN
$10.1B
| $1.11M | ﹤0.01% |
+2,538
| New | +$1.11M |
|
461
Methanex
MEOH
$2.99B
| $1.1M | ﹤0.01% |
20,225
-12,191
| -38% | -$665K |
|
462
Direxion Daily Regional Banks Bull 3X Shares
DPST
$750M
| $1.1M | ﹤0.01% |
2,595
+1,010
| +64% | +$429K |
|
463
Global Payments
GPN
$21.3B
| $1.1M | ﹤0.01% |
8,008
-2,190
| -21% | -$299K |
|
464
Medical Properties Trust
MPW
$2.77B
| $1.1M | ﹤0.01% |
51,832
+18,886
| +57% | +$399K |
|
|
PING
465
DELISTED
Ping Identity Holding Corp.
PING
| $1.09M | ﹤0.01% |
39,859
+22,456
| +129% | +$616K |
|
466
Direxion Daily CSI China Internet Index Bull 2X Shares
CWEB
$323M
| $1.08M | ﹤0.01% |
17,490
+12,214
| +232% | +$756K |
|
467
Perrigo
PRGO
$3.12B
| $1.08M | ﹤0.01% |
28,166
-19,352
| -41% | -$743K |
|
468
Teucrium Corn Fund
CORN
$48.6M
| $1.08M | ﹤0.01% |
39,736
+4,523
| +13% | +$123K |
|
469
iShares MSCI Singapore ETF
EWS
$805M
| $1.08M | ﹤0.01% |
+51,681
| New | +$1.08M |
|
470
BioCryst Pharmaceuticals
BCRX
$1.74B
| $1.08M | ﹤0.01% |
66,185
+61,765
| +1,397% | +$1M |
|
471
SGHC Ltd
SGHC
$6.4B
| $1.07M | ﹤0.01% |
+100,221
| New | +$1.07M |
|
|
GOL
472
DELISTED
Gol Linhas Aéreas Inteligentes S.A. American Depositary Shares (Each representing Ten Preferred Shares)
GOL
| $1.07M | ﹤0.01% |
148,399
+34,834
| +31% | +$251K |
|
473
NexGen Energy
NXE
$4.46B
| $1.06M | ﹤0.01% |
187,066
+120,858
| +183% | +$684K |
|
474
Mr. Cooper
COOP
$13.6B
| $1.06M | ﹤0.01% |
+23,150
| New | +$1.06M |
|
|
TIGR
475
UP Fintech Holding
TIGR
$2.18B
| $1.06M | ﹤0.01% |
+215,710
| New | +$1.06M |
|