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
|
+$41.7M |
| 2 |
Mastercard
MA
|
+$33.6M |
| 3 |
Alibaba
BABA
|
+$33.4M |
| 4 |
Apple
AAPL
|
+$27.9M |
| 5 |
Alphabet (Google) Class C
GOOG
|
+$26M |
Top Sells
| 1 |
JPMorgan Chase
JPM
|
+$60M |
| 2 |
TSMC
TSM
|
+$49.5M |
| 3 |
iShares Silver Trust
SLV
|
+$26M |
| 4 |
Amazon
AMZN
|
+$25.2M |
| 5 |
Boeing
BA
|
+$22.1M |
Sector Composition
| 1 | Consumer Discretionary | 23.12% |
| 2 | Technology | 13.05% |
| 3 | Healthcare | 11.53% |
| 4 | Industrials | 7.38% |
| 5 | Communication Services | 6.71% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
426
Affiliated Managers Group
AMG
$6.64B
| $996K | ﹤0.01% |
+9,794
| New | +$996K |
|
427
Omeros
OMER
$289M
| $991K | ﹤0.01% |
69,413
+23,179
| +50% | +$331K |
|
428
Global X Robotics & Artificial Intelligence ETF
BOTZ
$2.88B
| $990K | ﹤0.01% |
29,897
+27,736
| +1,283% | +$918K |
|
429
WEC Energy
WEC
$34.9B
| $985K | ﹤0.01% |
10,711
+6,620
| +162% | +$609K |
|
430
Nice
NICE
$8.92B
| $983K | ﹤0.01% |
3,468
+515
| +17% | +$146K |
|
431
Eastern Bankshares
EBC
$3.41B
| $982K | ﹤0.01% |
+60,227
| New | +$982K |
|
|
SDC
432
DELISTED
SmileDirectClub, Inc. Class A Common Stock
SDC
| $981K | ﹤0.01% |
82,175
-20,376
| -20% | -$243K |
|
|
LOGC
433
DELISTED
ContextLogic
LOGC
| $973K | ﹤0.01% |
+1,779
| New | +$973K |
|
434
International Flavors & Fragrances
IFF
$16.6B
| $969K | ﹤0.01% |
+8,909
| New | +$969K |
|
435
Fortive
FTV
$16.3B
| $965K | ﹤0.01% |
13,635
+13,199
| +3,027% | +$934K |
|
436
SLM Corp
SLM
$6.14B
| $962K | ﹤0.01% |
77,711
+9,178
| +13% | +$114K |
|
|
437
JPMorgan Chase
JPM
$824B
| $960K | ﹤0.01% |
7,558
-472,128
| -98% | -$60M |
|
438
Embraer
ERJ
$11.3B
| $958K | ﹤0.01% |
140,819
+96,430
| +217% | +$656K |
|
439
Amicus Therapeutics
FOLD
$2.42B
| $958K | ﹤0.01% |
41,531
+8,923
| +27% | +$206K |
|
440
ADT
ADT
$7.05B
| $957K | ﹤0.01% |
121,930
+19,374
| +19% | +$152K |
|
|
SOL
441
Emeren Group
SOL
$97M
| $957K | ﹤0.01% |
+83,790
| New | +$957K |
|
442
Sherwin-Williams
SHW
$90.2B
| $956K | ﹤0.01% |
+3,906
| New | +$956K |
|
443
Sangamo Therapeutics
SGMO
$161M
| $948K | ﹤0.01% |
60,812
+31,640
| +108% | +$493K |
|
444
Twilio
TWLO
$16.6B
| $947K | ﹤0.01% |
+2,798
| New | +$947K |
|
445
Renaissance IPO ETF
IPO
$182M
| $944K | ﹤0.01% |
14,645
+13,177
| +898% | +$849K |
|
446
Abercrombie & Fitch
ANF
$4.59B
| $941K | ﹤0.01% |
+46,260
| New | +$941K |
|
447
Celanese
CE
$4.96B
| $933K | ﹤0.01% |
+7,187
| New | +$933K |
|
|
LAC
448
DELISTED
Lithium Americas Corp. Common Shares
LAC
| $932K | ﹤0.01% |
74,312
+63,981
| +619% | +$802K |
|
|
AYX
449
DELISTED
Alteryx, Inc.
AYX
| $926K | ﹤0.01% |
7,606
-14,135
| -65% | -$1.72M |
|
450
LivePerson
LPSN
$93.8M
| $925K | ﹤0.01% |
+14,872
| New | +$925K |
|