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 |
Broadcom
AVGO
|
+$38.5M |
| 2 |
SPDR Gold Trust
GLD
|
+$18.5M |
| 3 |
iShares MSCI Emerging Markets ETF
EEM
|
+$15.8M |
| 4 |
SPDR S&P MidCap 400 ETF Trust
MDY
|
+$12.9M |
| 5 |
QIHU
QIHOO 360 TECHNOLOGY CO LTD ADS RPSTG 3 CL A SHS
QIHU
|
+$8.72M |
Top Sells
| 1 |
Apple
AAPL
|
+$36.1M |
| 2 |
GMCR
KEURIG GREEN MTN INC
GMCR
|
+$17.9M |
| 3 |
Chipotle Mexican Grill
CMG
|
+$14.9M |
| 4 |
Walt Disney
DIS
|
+$14.5M |
| 5 |
Alibaba
BABA
|
+$13.3M |
Sector Composition
| 1 | Technology | 15.08% |
| 2 | Communication Services | 13.51% |
| 3 | Consumer Discretionary | 9.68% |
| 4 | Healthcare | 8.98% |
| 5 | Financials | 8.3% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
326
Spectrum Brands
SPB
$1.35B
| $313K | 0.02% |
+2,870
| New | +$313K |
|
327
UBS Group
UBS
$127B
| $313K | 0.02% |
19,559
+5,977
| +44% | +$95.6K |
|
328
SPDR S&P Homebuilders ETF
XHB
$1.92B
| $311K | 0.02% |
9,211
+4,556
| +98% | +$154K |
|
|
DHC
329
Diversified Healthcare Trust
DHC
$1.03B
| $309K | 0.02% |
17,297
-3,403
| -16% | -$60.8K |
|
330
Ashland
ASH
$2.43B
| $308K | 0.02% |
5,744
+4,058
| +241% | +$218K |
|
|
DRII
331
DELISTED
DIAMOND RESORTS INTL, INC
DRII
| $308K | 0.02% |
+12,712
| New | +$308K |
|
|
TUMI
332
DELISTED
TUMI HLDGS INC COM
TUMI
| $307K | 0.02% |
+11,454
| New | +$307K |
|
333
Radware
RDWR
$1.1B
| $303K | 0.02% |
25,646
+11,137
| +77% | +$132K |
|
334
Veracyte
VCYT
$2.49B
| $302K | 0.02% |
+55,986
| New | +$302K |
|
335
Avanos Medical
AVNS
$567M
| $301K | 0.02% |
+10,500
| New | +$301K |
|
336
iShares Core S&P 500 ETF
IVV
$672B
| $300K | 0.02% |
+1,452
| New | +$300K |
|
337
Navient
NAVI
$1.33B
| $300K | 0.02% |
25,091
+14,109
| +128% | +$169K |
|
|
INVN
338
DELISTED
Invensense Inc
INVN
| $299K | 0.02% |
+35,685
| New | +$299K |
|
339
Novavax
NVAX
$1.3B
| $298K | 0.02% |
+2,889
| New | +$298K |
|
340
Tronox
TROX
$758M
| $296K | 0.02% |
46,403
-3,596
| -7% | -$22.9K |
|
|
CVT
341
DELISTED
CVENT, INC.
CVT
| $296K | 0.02% |
+13,859
| New | +$296K |
|
342
AerCap
AER
$21.8B
| $294K | 0.02% |
7,590
-5,603
| -42% | -$217K |
|
343
CF Industries
CF
$13.8B
| $294K | 0.02% |
9,407
+8,523
| +964% | +$266K |
|
344
IAC Inc
IAC
$2.87B
| $291K | 0.02% |
34,680
-1,002
| -3% | -$8.41K |
|
|
BTCM
345
BIT Mining
BTCM
$49.8M
| $290K | 0.02% |
1,738
+1,234
| +245% | +$206K |
|
346
Verisk Analytics
VRSK
$37.2B
| $290K | 0.02% |
+3,639
| New | +$290K |
|
|
GRUB
347
DELISTED
Just Eat Takeaway.com N.V. American Depositary Shares
GRUB
| $290K | 0.02% |
5,772
+4,880
| +547% | +$245K |
|
348
Bath & Body Works
BBWI
$5.81B
| $286K | 0.02% |
+4,036
| New | +$286K |
|
349
Graco
GGG
$14.1B
| $286K | 0.02% |
10,248
+9,978
| +3,696% | +$278K |
|
|
DNKN
350
DELISTED
Dunkin' Brands Group, Inc.
DNKN
| $286K | 0.02% |
6,073
-2,353
| -28% | -$111K |
|