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 |
Invesco QQQ Trust
QQQ
|
+$85.4M |
| 2 |
SPDR Gold Trust
GLD
|
+$75.9M |
| 3 |
NVIDIA
NVDA
|
+$42.6M |
| 4 |
Netflix
NFLX
|
+$41.1M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
+$40.5M |
Top Sells
| 1 |
Apple
AAPL
|
+$65.7M |
| 2 |
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
|
+$25.5M |
| 3 |
SPDR S&P 500 ETF Trust
SPY
|
+$24.4M |
| 4 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$24.3M |
| 5 |
Broadcom
AVGO
|
+$21.3M |
Sector Composition
| 1 | Technology | 15.2% |
| 2 | Consumer Discretionary | 14.52% |
| 3 | Communication Services | 10.57% |
| 4 | Healthcare | 8.15% |
| 5 | Financials | 7.15% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
751
Mettler-Toledo International
MTD
$27.1B
| $207K | ﹤0.01% |
257
+197
| +328% | +$159K |
|
752
Kulicke & Soffa
KLIC
$1.99B
| $205K | ﹤0.01% |
9,866
+5,699
| +137% | +$118K |
|
|
ONC
753
BeOne Medicines Ltd. American Depositary Shares
ONC
$38.6B
| $205K | ﹤0.01% |
1,092
+754
| +223% | +$142K |
|
|
MANT
754
DELISTED
Mantech International Corp
MANT
| $204K | ﹤0.01% |
2,985
+2,922
| +4,638% | +$200K |
|
755
Fortuna Silver Mines
FSM
$2.38B
| $203K | ﹤0.01% |
39,902
-28,152
| -41% | -$143K |
|
756
LCI Industries
LCII
$2.55B
| $203K | ﹤0.01% |
1,772
+1,424
| +409% | +$163K |
|
757
NMI Holdings
NMIH
$3.06B
| $203K | ﹤0.01% |
12,681
+4,376
| +53% | +$70.1K |
|
758
Antero Resources
AR
$9.94B
| $202K | ﹤0.01% |
79,785
+10,323
| +15% | +$26.1K |
|
759
Everest Group
EG
$14.2B
| $202K | ﹤0.01% |
983
-9,344
| -90% | -$1.92M |
|
760
SL Green Realty
SLG
$4.32B
| $202K | ﹤0.01% |
+4,253
| New | +$202K |
|
|
LCI
761
DELISTED
Lannett Company, Inc.
LCI
| $202K | ﹤0.01% |
6,972
+938
| +16% | +$27.2K |
|
|
BFYT
762
DELISTED
Benefytt Technologies, Inc. Class A Common Stock
BFYT
| $201K | ﹤0.01% |
9,832
+9,782
| +19,564% | +$200K |
|
763
iShares MSCI Europe Financials ETF
EUFN
$4.4B
| $200K | ﹤0.01% |
14,062
+3,453
| +33% | +$49.1K |
|
764
Imperial Oil
IMO
$44.5B
| $200K | ﹤0.01% |
+12,477
| New | +$200K |
|
765
Zynex
ZYXI
$44.2M
| $200K | ﹤0.01% |
8,879
+2,073
| +30% | +$46.7K |
|
766
Levi Strauss
LEVI
$8.59B
| $199K | ﹤0.01% |
14,910
+9,989
| +203% | +$133K |
|
767
Schwab US TIPS ETF
SCHP
$14.1B
| $199K | ﹤0.01% |
+6,640
| New | +$199K |
|
768
B2Gold
BTG
$5.6B
| $198K | ﹤0.01% |
34,808
-11,827
| -25% | -$67.3K |
|
769
Omeros
OMER
$290M
| $198K | ﹤0.01% |
13,511
-5,076
| -27% | -$74.4K |
|
|
HOLI
770
DELISTED
Hollsys Automation Technologies INTERNATIONAL, LTD. COMMON (British Virgin Island)
HOLI
| $198K | ﹤0.01% |
+14,914
| New | +$198K |
|
|
PS
771
DELISTED
Pluralsight, Inc. Class A Common Stock
PS
| $198K | ﹤0.01% |
+11,023
| New | +$198K |
|
|
TCO
772
DELISTED
Taubman Centers Inc.
TCO
| $198K | ﹤0.01% |
5,246
-51,122
| -91% | -$1.93M |
|
773
Monster Beverage
MNST
$61.9B
| $197K | ﹤0.01% |
5,688
-16,274
| -74% | -$564K |
|
|
MTOR
774
DELISTED
MERITOR, Inc.
MTOR
| $197K | ﹤0.01% |
+9,985
| New | +$197K |
|
775
BGC Group
BGC
$4.76B
| $196K | ﹤0.01% |
+71,743
| New | +$196K |
|