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 |
Gilead Sciences
GILD
|
$16.8M |
| 2 |
Apple
AAPL
|
$16.2M |
| 3 |
Booking.com
BKNG
|
$15.6M |
| 4 |
Alphabet (Google) Class A
GOOGL
|
$15.3M |
| 5 |
Wells Fargo
WFC
|
$11.9M |
Top Sells
| 1 |
SPDR Gold Trust
GLD
|
$38M |
| 2 |
QIHU
QIHOO 360 TECHNOLOGY CO LTD ADS RPSTG 3 CL A SHS
QIHU
|
$30.7M |
| 3 |
LNKD
LinkedIn Corporation
LNKD
|
$15.2M |
| 4 |
CELG
Celgene Corp
CELG
|
$11.5M |
| 5 |
ProShares Trust UltraShort Lehman 20+ Year Treasury
TBT
|
$10.5M |
Sector Composition
| 1 | Communication Services | 15.83% |
| 2 | Healthcare | 15.63% |
| 3 | Consumer Discretionary | 12.92% |
| 4 | Technology | 11.44% |
| 5 | Financials | 8.29% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
576
Invesco CurrencyShares Canadian Dollar Trust
FXC
$91.7M
| $179K | 0.01% |
+2,385
| New | +$179K |
|
577
Sasol
SSL
$4.51B
| $178K | 0.01% |
6,527
+264
| +4% | +$7.2K |
|
|
QGENF
578
DELISTED
QIAGEN NV
QGENF
| $178K | 0.01% |
6,508
+5,869
| +918% | +$161K |
|
579
DigitalBridge
DBRG
$2.04B
| $177K | 0.01% |
3,434
+52
| +2% | +$2.68K |
|
580
Vuzix
VUZI
$188M
| $176K | 0.01% |
19,929
+1,997
| +11% | +$17.6K |
|
|
TIME
581
DELISTED
Time Inc.
TIME
| $176K | 0.01% |
12,190
+9,858
| +423% | +$142K |
|
582
Box
BOX
$4.75B
| $174K | 0.01% |
11,089
+9,484
| +591% | +$149K |
|
583
Essex Property Trust
ESS
$17.3B
| $174K | 0.01% |
784
+98
| +14% | +$21.8K |
|
584
Tile Shop Holdings
TTSH
$278M
| $174K | 0.01% |
+10,554
| New | +$174K |
|
|
TUP
585
DELISTED
Tupperware Brands Corporation
TUP
| $174K | 0.01% |
+2,674
| New | +$174K |
|
|
ASNA
586
DELISTED
Ascena Retail Group, Inc.
ASNA
| $174K | 0.01% |
+1,559
| New | +$174K |
|
|
WBMD
587
DELISTED
WebMD Health Corp.
WBMD
| $174K | 0.01% |
3,509
+283
| +9% | +$14K |
|
588
MACOM Technology Solutions
MTSI
$9.67B
| $173K | 0.01% |
+4,099
| New | +$173K |
|
589
Pool Corp
POOL
$12.4B
| $173K | 0.01% |
1,836
+1,714
| +1,405% | +$162K |
|
|
ACOR
590
DELISTED
Acorda Therapeutics, Inc.
ACOR
| $172K | 0.01% |
69
-33
| -32% | -$82.3K |
|
|
PTHN
591
DELISTED
Patheon N.V.
PTHN
| $172K | 0.01% |
+5,836
| New | +$172K |
|
592
Liberty Global Class A
LBTYA
$4.05B
| $169K | 0.01% |
4,968
+863
| +21% | +$29.4K |
|
593
WIX.com
WIX
$8.52B
| $169K | 0.01% |
+3,895
| New | +$169K |
|
594
Altisource Portfolio Solutions
ASPS
$124M
| $167K | 0.01% |
647
-922
| -59% | -$238K |
|
595
First Majestic Silver
AG
$4.47B
| $166K | 0.01% |
16,134
+3,036
| +23% | +$31.2K |
|
596
Adecoagro
AGRO
$829M
| $165K | 0.01% |
+14,544
| New | +$165K |
|
|
QEP
597
DELISTED
QEP RESOURCES, INC.
QEP
| $164K | 0.01% |
8,412
+5,592
| +198% | +$109K |
|
598
WisdomTree Europe SmallCap Dividend Fund
DFE
$179M
| $163K | 0.01% |
+2,954
| New | +$163K |
|
599
Henry Schein
HSIC
$8.42B
| $163K | 0.01% |
+2,558
| New | +$163K |
|
600
Vanguard Small-Cap Value ETF
VBR
$31.8B
| $163K | 0.01% |
1,476
+300
| +26% | +$33.1K |
|