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
|
+$45.7M |
| 2 |
Walmart
WMT
|
+$45.2M |
| 3 |
VanEck Oil Services ETF
OIH
|
+$34.2M |
| 4 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$33.2M |
| 5 |
Citigroup
C
|
+$32.7M |
Top Sells
| 1 |
Amazon
AMZN
|
+$164M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$111M |
| 3 |
NVIDIA
NVDA
|
+$77.7M |
| 4 |
Meta Platforms (Facebook)
META
|
+$60.9M |
| 5 |
Procter & Gamble
PG
|
+$38.8M |
Sector Composition
| 1 | Technology | 21.73% |
| 2 | Consumer Discretionary | 10.23% |
| 3 | Healthcare | 8.76% |
| 4 | Industrials | 7.59% |
| 5 | Communication Services | 6.56% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
FOCS
826
DELISTED
Focus Financial Partners Inc. Class A
FOCS
| $181K | ﹤0.01% |
+3,498
| New | +$181K |
|
827
Agree Realty
ADC
$7.96B
| $180K | ﹤0.01% |
2,632
+417
| +19% | +$28.5K |
|
828
Grand Canyon Education
LOPE
$5.69B
| $180K | ﹤0.01% |
1,584
+573
| +57% | +$65.1K |
|
829
SPDR S&P China ETF
GXC
$490M
| $179K | ﹤0.01% |
2,176
-2,294
| -51% | -$189K |
|
830
SPDR Bloomberg 1-3 Month T-Bill ETF
BIL
$41.8B
| $176K | ﹤0.01% |
1,917
-2,903
| -60% | -$267K |
|
831
Cooper-Standard Automotive
CPS
$685M
| $176K | ﹤0.01% |
12,429
-10,468
| -46% | -$148K |
|
832
ProShares UltraShort Dow 30
DXD
$53.1M
| $175K | ﹤0.01% |
4,094
+2,473
| +153% | +$106K |
|
833
Gray Television
GTN
$579M
| $174K | ﹤0.01% |
19,988
-85,557
| -81% | -$745K |
|
834
Selective Insurance
SIGI
$4.75B
| $174K | ﹤0.01% |
1,828
-90
| -5% | -$8.57K |
|
835
American Axle
AXL
$704M
| $173K | ﹤0.01% |
22,181
-31,890
| -59% | -$249K |
|
|
RENT
836
Rent the Runway
RENT
$25M
| $172K | ﹤0.01% |
3,032
-3,482
| -53% | -$198K |
|
837
Direxion Daily CSI China Internet Index Bull 2X Shares
CWEB
$350M
| $171K | ﹤0.01% |
3,370
-547
| -14% | -$27.8K |
|
838
Rocket Lab Corporation Common Stock
RKLB
$22.3B
| $171K | ﹤0.01% |
42,508
+40,908
| +2,557% | +$165K |
|
|
PFSW
839
DELISTED
PFSweb, Inc.
PFSW
| $170K | ﹤0.01% |
40,241
+12,020
| +43% | +$50.8K |
|
840
Arcos Dorados Holdings
ARCO
$1.47B
| $169K | ﹤0.01% |
22,032
-5,047
| -19% | -$38.7K |
|
841
Nautilus Biotechnolgy
NAUT
$89.3M
| $169K | ﹤0.01% |
61,113
+58,950
| +2,725% | +$163K |
|
|
PGTI
842
DELISTED
PGT, Inc.
PGTI
| $169K | ﹤0.01% |
6,762
+4,342
| +179% | +$109K |
|
843
Monolithic Power Systems
MPWR
$41B
| $168K | ﹤0.01% |
+336
| New | +$168K |
|
844
Ashland
ASH
$2.42B
| $167K | ﹤0.01% |
1,628
+1,500
| +1,172% | +$154K |
|
845
Anterix
ATEX
$397M
| $167K | ﹤0.01% |
5,068
+3,362
| +197% | +$111K |
|
846
Geron
GERN
$823M
| $167K | ﹤0.01% |
+77,387
| New | +$167K |
|
847
Vaalco Energy
EGY
$416M
| $166K | ﹤0.01% |
+36,820
| New | +$166K |
|
848
KLX Energy Services
KLXE
$34.1M
| $166K | ﹤0.01% |
14,311
+10,664
| +292% | +$124K |
|
849
Opko Health
OPK
$1.12B
| $166K | ﹤0.01% |
+113,893
| New | +$166K |
|
850
Valley National Bancorp
VLY
$5.99B
| $166K | ﹤0.01% |
+18,065
| New | +$166K |
|