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 |
NVIDIA
NVDA
|
+$60M |
| 2 |
Microsoft
MSFT
|
+$58.6M |
| 3 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$52.5M |
| 4 |
PayPal
PYPL
|
+$40.9M |
| 5 |
Netflix
NFLX
|
+$29.7M |
Top Sells
| 1 |
Apple
AAPL
|
+$48.7M |
| 2 |
Walmart
WMT
|
+$45.2M |
| 3 |
Adobe
ADBE
|
+$40.6M |
| 4 |
VanEck Oil Services ETF
OIH
|
+$34.2M |
| 5 |
Enphase Energy
ENPH
|
+$27.2M |
Sector Composition
| 1 | Technology | 21.17% |
| 2 | Healthcare | 10.87% |
| 3 | Consumer Discretionary | 10.73% |
| 4 | Communication Services | 10.55% |
| 5 | Financials | 7.54% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
751
United States Copper Index Fund
CPER
$221M
| $259K | ﹤0.01% |
11,165
+530
| +5% | +$12.3K |
|
752
Marvell Technology
MRVL
$58.6B
| $259K | ﹤0.01% |
4,335
-215,366
| -98% | -$12.9M |
|
753
Diamondback Energy
FANG
$39.9B
| $258K | ﹤0.01% |
1,970
-85,903
| -98% | -$11.3M |
|
754
Fomento Económico Mexicano
FMX
$30.6B
| $258K | ﹤0.01% |
+2,328
| New | +$258K |
|
755
American Vanguard Corp
AVD
$153M
| $257K | ﹤0.01% |
14,437
+5,048
| +54% | +$89.9K |
|
756
Euronet Worldwide
EEFT
$3.58B
| $257K | ﹤0.01% |
+2,193
| New | +$257K |
|
757
Tower Semiconductor
TSEM
$7.36B
| $257K | ﹤0.01% |
6,858
+3,713
| +118% | +$139K |
|
758
Amplify Transformational Data Sharing ETF
BLOK
$1.26B
| $256K | ﹤0.01% |
+11,262
| New | +$256K |
|
759
Tecnoglass
TGLS
$3.43B
| $256K | ﹤0.01% |
4,973
+1,532
| +45% | +$78.9K |
|
760
Adtran
ADTN
$842M
| $253K | ﹤0.01% |
24,070
+23,687
| +6,185% | +$249K |
|
|
BCTX
761
Briacell Therapeutics
BCTX
$13.9M
| $253K | ﹤0.01% |
263
+256
| +3,657% | +$246K |
|
762
Patrick Industries
PATK
$3.78B
| $252K | ﹤0.01% |
4,739
-4,770
| -50% | -$254K |
|
|
SILV
763
DELISTED
SilverCrest Metals Inc. Common Shares
SILV
| $252K | ﹤0.01% |
43,166
-3,260
| -7% | -$19K |
|
764
Cemex
CX
$13.7B
| $250K | ﹤0.01% |
35,318
-64,350
| -65% | -$456K |
|
765
Teucrium Soybean Fund
SOYB
$25.4M
| $250K | ﹤0.01% |
+9,172
| New | +$250K |
|
766
Tri Pointe Homes
TPH
$3.14B
| $250K | ﹤0.01% |
+7,624
| New | +$250K |
|
767
First Foundation Inc
FFWM
$490M
| $249K | ﹤0.01% |
+62,897
| New | +$249K |
|
768
M&T Bank
MTB
$30.9B
| $247K | ﹤0.01% |
2,000
| – | – |
|
769
HDFC Bank
HDB
$181B
| $243K | ﹤0.01% |
3,488
+1,607
| +85% | +$112K |
|
770
RCI Hospitality Holdings
RICK
$300M
| $243K | ﹤0.01% |
3,202
+824
| +35% | +$62.5K |
|
771
Cipher Mining
CIFR
$4.17B
| $241K | ﹤0.01% |
84,319
-8,152
| -9% | -$23.3K |
|
772
Manulife Financial
MFC
$53.4B
| $241K | ﹤0.01% |
+12,765
| New | +$241K |
|
773
Natera
NTRA
$23.8B
| $241K | ﹤0.01% |
+4,960
| New | +$241K |
|
|
OPI
774
Office Properties Income Trust
OPI
$19.2M
| $240K | ﹤0.01% |
31,223
+24,403
| +358% | +$188K |
|
775
scPharmaceuticals
SCPH
$302M
| $239K | ﹤0.01% |
23,528
+16,036
| +214% | +$163K |
|