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 |
Apple
AAPL
|
+$186M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$86.2M |
| 3 |
SPDR S&P 500 ETF Trust
SPY
|
+$56.8M |
| 4 |
iShares Silver Trust
SLV
|
+$42.9M |
| 5 |
Advanced Micro Devices
AMD
|
+$36.5M |
Top Sells
| 1 |
Occidental Petroleum
OXY
|
+$44.4M |
| 2 |
Financial Select Sector SPDR Fund
XLF
|
+$42.8M |
| 3 |
Verizon
VZ
|
+$40.8M |
| 4 |
Direxion Daily S&P 500 Bull 3x Shares
SPXL
|
+$33.6M |
| 5 |
iShares China Large-Cap ETF
FXI
|
+$33M |
Sector Composition
| 1 | Technology | 23.31% |
| 2 | Consumer Discretionary | 13.02% |
| 3 | Industrials | 8.23% |
| 4 | Healthcare | 7.47% |
| 5 | Financials | 6.38% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
876
Ambev
ABEV
$35.2B
| $350K | ﹤0.01% |
+108,492
| New | +$350K |
|
877
ProShares Short S&P500
SH
$1.23B
| $350K | ﹤0.01% |
6,217
+3,129
| +101% | +$176K |
|
|
AHT
878
Ashford Hospitality Trust
AHT
$38M
| $349K | ﹤0.01% |
3,427
-136
| -4% | -$13.9K |
|
879
GitLab
GTLB
$8.17B
| $346K | ﹤0.01% |
6,355
-8,370
| -57% | -$456K |
|
880
ProShares UltraShort Bloomberg Crude Oil
SCO
$120M
| $346K | ﹤0.01% |
11,982
+8,619
| +256% | +$249K |
|
|
AGS
881
DELISTED
PlayAGS
AGS
| $344K | ﹤0.01% |
51,628
+50,956
| +7,583% | +$340K |
|
882
Victoria's Secret
VSCO
$2.06B
| $344K | ﹤0.01% |
6,709
-14,352
| -68% | -$736K |
|
883
iShares MSCI China ETF
MCHI
$8.07B
| $343K | ﹤0.01% |
+6,496
| New | +$343K |
|
884
RCI Hospitality Holdings
RICK
$295M
| $342K | ﹤0.01% |
5,574
+1,431
| +35% | +$87.8K |
|
885
Nordic American Tanker
NAT
$675M
| $335K | ﹤0.01% |
157,719
+59,178
| +60% | +$126K |
|
886
Invivyd
IVVD
$270M
| $333K | ﹤0.01% |
73,201
+72,886
| +23,138% | +$332K |
|
887
Direxion Daily Small Cap Bull 3x Shares
TNA
$2.19B
| $333K | ﹤0.01% |
+5,297
| New | +$333K |
|
888
Helios Technologies
HLIO
$1.82B
| $332K | ﹤0.01% |
4,148
+1,985
| +92% | +$159K |
|
|
TRVG
889
trivago
TRVG
$230M
| $331K | ﹤0.01% |
28,095
+6,303
| +29% | +$74.3K |
|
890
Cactus
WHD
$2.84B
| $331K | ﹤0.01% |
5,846
+5,773
| +7,908% | +$327K |
|
891
Vanguard Total Bond Market
BND
$135B
| $330K | ﹤0.01% |
+4,150
| New | +$330K |
|
|
BRT
892
BRT Apartments
BRT
$290M
| $330K | ﹤0.01% |
13,772
+12,256
| +808% | +$294K |
|
893
Direxion Daily MSCI India Bull 2X Shares
INDL
$68M
| $328K | ﹤0.01% |
5,929
-5,685
| -49% | -$315K |
|
894
8x8 Inc
EGHT
$285M
| $326K | ﹤0.01% |
+25,968
| New | +$326K |
|
895
CONMED
CNMD
$1.63B
| $325K | ﹤0.01% |
2,189
-865
| -28% | -$128K |
|
896
Taylor Morrison
TMHC
$6.89B
| $325K | ﹤0.01% |
+11,945
| New | +$325K |
|
897
SL Green Realty
SLG
$4.29B
| $323K | ﹤0.01% |
3,982
-4,020
| -50% | -$326K |
|
898
Cheniere Energy
CQP
$25.7B
| $322K | ﹤0.01% |
+5,718
| New | +$322K |
|
899
Signet Jewelers
SIG
$3.75B
| $322K | ﹤0.01% |
4,431
-793
| -15% | -$57.6K |
|
900
WEC Energy
WEC
$35.2B
| $322K | ﹤0.01% |
3,227
+1,703
| +112% | +$170K |
|