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 |
Alibaba
BABA
|
+$48.9M |
| 2 |
Boeing
BA
|
+$25.8M |
| 3 |
SPDR Gold Trust
GLD
|
+$18.2M |
| 4 |
Biogen
BIIB
|
+$15.8M |
| 5 |
FedEx
FDX
|
+$13.6M |
Top Sells
| 1 |
Alphabet (Google) Class C
GOOG
|
+$62.1M |
| 2 |
iShares Russell 2000 ETF
IWM
|
+$36.4M |
| 3 |
Industrial Select Sector SPDR Fund
XLI
|
+$17.5M |
| 4 |
Netflix
NFLX
|
+$16.3M |
| 5 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$14.6M |
Sector Composition
| 1 | Consumer Discretionary | 16.74% |
| 2 | Technology | 16.32% |
| 3 | Healthcare | 12.17% |
| 4 | Industrials | 12.14% |
| 5 | Communication Services | 7.05% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
NBIS
476
Nebius Group N.V. Class A Ordinary Shares
NBIS
$22.3B
| $365K | ﹤0.01% |
10,454
-48,755
| -82% | -$1.7M |
|
477
Ingersoll Rand
IR
$31.9B
| $364K | ﹤0.01% |
12,889
+12,623
| +4,745% | +$356K |
|
|
VER
478
DELISTED
VEREIT, Inc.
VER
| $364K | ﹤0.01% |
7,452
+6,642
| +820% | +$324K |
|
|
DOVA
479
DELISTED
Dova Pharmaceuticals, Inc. Common Stock
DOVA
| $364K | ﹤0.01% |
13,030
+11,689
| +872% | +$327K |
|
480
Darden Restaurants
DRI
$24.7B
| $363K | ﹤0.01% |
+3,078
| New | +$363K |
|
481
MasterCraft Boat Holdings
MCFT
$366M
| $363K | ﹤0.01% |
+24,347
| New | +$363K |
|
482
Oppenheimer Holdings
OPY
$763M
| $362K | ﹤0.01% |
12,048
+9,802
| +436% | +$295K |
|
483
Vanguard Small-Cap Value ETF
VBR
$31.4B
| $360K | ﹤0.01% |
2,795
+2,229
| +394% | +$287K |
|
484
J.M. Smucker
SJM
$11.7B
| $354K | ﹤0.01% |
3,224
-2,601
| -45% | -$286K |
|
|
CTLT
485
DELISTED
CATALENT, INC.
CTLT
| $354K | ﹤0.01% |
+7,440
| New | +$354K |
|
|
BITA
486
DELISTED
Bitauto Holdings Limited
BITA
| $353K | ﹤0.01% |
23,629
+19,183
| +431% | +$287K |
|
|
CHK
487
DELISTED
Chesapeake Energy Corporation
CHK
| $353K | ﹤0.01% |
1,253
+1,039
| +486% | +$293K |
|
488
Meta Platforms (Facebook)
META
$1.89T
| $351K | ﹤0.01% |
+1,973
| New | +$351K |
|
489
Children's Place
PLCE
$170M
| $351K | ﹤0.01% |
4,562
-1,028
| -18% | -$79.1K |
|
|
AIMT
490
DELISTED
Aimmune Therapeutics, Inc.
AIMT
| $350K | ﹤0.01% |
+16,732
| New | +$350K |
|
491
Cheniere Energy
CQP
$25.7B
| $348K | ﹤0.01% |
+7,663
| New | +$348K |
|
|
ARNA
492
DELISTED
Arena Pharmaceuticals Inc
ARNA
| $348K | ﹤0.01% |
7,624
+6,997
| +1,116% | +$319K |
|
493
Nutrien
NTR
$27.9B
| $347K | ﹤0.01% |
+6,966
| New | +$347K |
|
494
Dominion Energy
D
$50.7B
| $346K | ﹤0.01% |
4,281
-70,601
| -94% | -$5.71M |
|
|
GOOS
495
Canada Goose Holdings
GOOS
$1.42B
| $344K | ﹤0.01% |
7,829
-18,772
| -71% | -$825K |
|
496
Embraer
ERJ
$10.9B
| $343K | ﹤0.01% |
19,938
-875
| -4% | -$15.1K |
|
497
Jack Henry & Associates
JKHY
$11.6B
| $343K | ﹤0.01% |
+2,351
| New | +$343K |
|
498
Topgolf Callaway Brands
MODG
$1.7B
| $343K | ﹤0.01% |
17,690
+14,954
| +547% | +$290K |
|
499
Coherus Oncology, Inc. Common Stock
CHRS
$152M
| $342K | ﹤0.01% |
16,886
-29,670
| -64% | -$601K |
|
500
Veracyte
VCYT
$2.42B
| $342K | ﹤0.01% |
14,264
+4,544
| +47% | +$109K |
|