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
|
+$44.9M |
| 2 |
iShares Russell 2000 ETF
IWM
|
+$31.7M |
| 3 |
TWX
Time Warner Inc
TWX
|
+$26.1M |
| 4 |
Booking.com
BKNG
|
+$21.7M |
| 5 |
Alphabet (Google) Class C
GOOG
|
+$18.2M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
+$42.8M |
| 2 |
Amgen
AMGN
|
+$32.3M |
| 3 |
Baidu
BIDU
|
+$21.9M |
| 4 |
Micron Technology
MU
|
+$21.2M |
| 5 |
Alphabet (Google) Class A
GOOGL
|
+$17.7M |
Sector Composition
| 1 | Consumer Discretionary | 21.41% |
| 2 | Technology | 19.71% |
| 3 | Communication Services | 17.68% |
| 4 | Healthcare | 6.08% |
| 5 | Financials | 5.75% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
776
Rithm Capital
RITM
$6.63B
| $127K | 0.01% |
7,641
-18,041
| -70% | -$300K |
|
|
BHR
777
Braemar Hotels & Resorts
BHR
$199M
| $126K | 0.01% |
+13,471
| New | +$126K |
|
778
KKR & Co
KKR
$124B
| $125K | 0.01% |
+6,175
| New | +$125K |
|
779
Trip.com Group
TCOM
$47.4B
| $125K | 0.01% |
2,379
-27,345
| -92% | -$1.44M |
|
780
Vulcan Materials
VMC
$38.9B
| $125K | 0.01% |
1,048
-9,405
| -90% | -$1.12M |
|
781
Werner Enterprises
WERN
$1.66B
| $125K | 0.01% |
+3,444
| New | +$125K |
|
|
RVNC
782
DELISTED
Revance Therapeutics, Inc.
RVNC
| $125K | 0.01% |
4,559
-1,127
| -20% | -$30.9K |
|
783
Caesars Entertainment
CZR
$5.33B
| $124K | 0.01% |
4,871
-32,188
| -87% | -$819K |
|
784
Icahn Enterprises
IEP
$4.77B
| $124K | 0.01% |
2,152
+934
| +77% | +$53.8K |
|
785
Veeva Systems
VEEV
$45B
| $124K | 0.01% |
+2,204
| New | +$124K |
|
|
BWP
786
DELISTED
Boardwalk Pipeline Partners
BWP
| $124K | 0.01% |
+8,447
| New | +$124K |
|
|
ATCO
787
DELISTED
Atlas Corp.
ATCO
| $123K | 0.01% |
17,360
+4,071
| +31% | +$28.8K |
|
|
MTL
788
DELISTED
Mechel PAO American Depository Shares, each representing two ordinary shares (ADSs)
MTL
| $123K | 0.01% |
23,856
-14,168
| -37% | -$73K |
|
|
PAY
789
DELISTED
Verifone Systems Inc
PAY
| $122K | 0.01% |
6,046
-3,818
| -39% | -$77K |
|
790
Assurant
AIZ
$10.6B
| $121K | ﹤0.01% |
+1,274
| New | +$121K |
|
|
TWOU
791
DELISTED
2U, Inc.
TWOU
| $121K | ﹤0.01% |
+72
| New | +$121K |
|
|
COW
792
DELISTED
iPath Bloomberg Livestock Subindex Total Return ETN due October 22, 2037
COW
| $121K | ﹤0.01% |
+5,331
| New | +$121K |
|
793
TTM Technologies
TTMI
$5.11B
| $120K | ﹤0.01% |
+7,866
| New | +$120K |
|
|
NLSN
794
DELISTED
Nielsen Holdings plc
NLSN
| $119K | ﹤0.01% |
+2,893
| New | +$119K |
|
795
IMAX
IMAX
$1.67B
| $119K | ﹤0.01% |
5,257
-20,577
| -80% | -$466K |
|
796
Tenet Healthcare
THC
$16.9B
| $119K | ﹤0.01% |
7,263
-35,859
| -83% | -$588K |
|
797
USA Compression Partners
USAC
$2.84B
| $119K | ﹤0.01% |
7,155
-2,247
| -24% | -$37.4K |
|
|
BBG
798
DELISTED
Bill Barrett Corp
BBG
| $119K | ﹤0.01% |
27,906
+21,518
| +337% | +$91.8K |
|
799
ScottsMiracle-Gro
SMG
$3.5B
| $118K | ﹤0.01% |
1,218
-4,087
| -77% | -$396K |
|
|
NEOS
800
DELISTED
Neos Therapeutics, Inc
NEOS
| $118K | ﹤0.01% |
12,933
+10,242
| +381% | +$93.4K |
|