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 |
Amazon
AMZN
|
+$84.3M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$37M |
| 3 |
Amgen
AMGN
|
+$32.3M |
| 4 |
Micron Technology
MU
|
+$29.4M |
| 5 |
Qualcomm
QCOM
|
+$18M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
+$29.8M |
| 2 |
Gilead Sciences
GILD
|
+$29.3M |
| 3 |
Goldman Sachs
GS
|
+$27.7M |
| 4 |
Booking.com
BKNG
|
+$26M |
| 5 |
AT&T
T
|
+$20.8M |
Sector Composition
| 1 | Technology | 20.65% |
| 2 | Communication Services | 17.64% |
| 3 | Consumer Discretionary | 14.77% |
| 4 | Healthcare | 11.1% |
| 5 | Financials | 6.35% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
826
Teucrium Soybean Fund
SOYB
$25.4M
| $115K | 0.01% |
6,389
+1,098
| +21% | +$19.8K |
|
827
China Automotive Systems
CAAS
$142M
| $114K | 0.01% |
+23,619
| New | +$114K |
|
|
APLP
828
DELISTED
Archrock Partners, L.P. Common Units representing Limited Partner Interests
APLP
| $114K | 0.01% |
7,665
-4,727
| -38% | -$70.3K |
|
|
CDK
829
DELISTED
CDK Global, Inc.
CDK
| $113K | ﹤0.01% |
1,821
-8,144
| -82% | -$505K |
|
|
CORV
830
DELISTED
Correvio Pharma Corp. Ordinary Shares (Canada)
CORV
| $113K | ﹤0.01% |
25,176
+5,896
| +31% | +$26.5K |
|
831
Cheniere Energy
CQP
$25.7B
| $113K | ﹤0.01% |
3,506
+1,095
| +45% | +$35.3K |
|
832
AMC Entertainment Holdings
AMC
$1.44B
| $112K | ﹤0.01% |
+496
| New | +$112K |
|
833
Hudbay
HBM
$5.35B
| $112K | ﹤0.01% |
19,480
+17,254
| +775% | +$99.2K |
|
834
Novo Nordisk
NVO
$240B
| $112K | ﹤0.01% |
5,246
+4,814
| +1,114% | +$103K |
|
835
iShares China Large-Cap ETF
FXI
$6.94B
| $111K | ﹤0.01% |
2,809
-34,199
| -92% | -$1.35M |
|
836
NNN REIT
NNN
$8.14B
| $111K | ﹤0.01% |
+2,851
| New | +$111K |
|
|
INFN
837
DELISTED
Infinera Corporation Common Stock
INFN
| $110K | ﹤0.01% |
10,327
-7,681
| -43% | -$81.8K |
|
|
LQ
838
DELISTED
La Quinta Holdings Inc.
LQ
| $110K | ﹤0.01% |
7,507
-688
| -8% | -$10.1K |
|
839
Fastenal
FAST
$54.4B
| $109K | ﹤0.01% |
+10,060
| New | +$109K |
|
840
NovoCure
NVCR
$1.4B
| $109K | ﹤0.01% |
+6,332
| New | +$109K |
|
|
AVID
841
DELISTED
Avid Technology Inc
AVID
| $109K | ﹤0.01% |
20,885
+10,858
| +108% | +$56.7K |
|
|
XONE
842
DELISTED
The ExOne Company
XONE
| $109K | ﹤0.01% |
9,556
+9,268
| +3,218% | +$106K |
|
843
Applied Optoelectronics
AAOI
$1.66B
| $108K | ﹤0.01% |
1,752
-22,017
| -93% | -$1.36M |
|
844
Ooma
OOMA
$349M
| $108K | ﹤0.01% |
13,542
+11,954
| +753% | +$95.3K |
|
845
MakeMyTrip
MMYT
$9.59B
| $107K | ﹤0.01% |
+3,212
| New | +$107K |
|
846
Vanguard Total International Stock ETF
VXUS
$104B
| $107K | ﹤0.01% |
+2,065
| New | +$107K |
|
|
ERF
847
DELISTED
Enerplus Corporation
ERF
| $107K | ﹤0.01% |
13,197
+7,940
| +151% | +$64.4K |
|
848
BGC Group
BGC
$4.85B
| $106K | ﹤0.01% |
13,148
-12,354
| -48% | -$99.6K |
|
849
Brookfield Infrastructure Partners
BIP
$14.4B
| $106K | ﹤0.01% |
4,385
+2,004
| +84% | +$48.4K |
|
850
IAC Inc
IAC
$2.92B
| $106K | ﹤0.01% |
5,763
-11,169
| -66% | -$205K |
|