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 |
Invesco QQQ Trust
QQQ
|
+$85.4M |
| 2 |
SPDR Gold Trust
GLD
|
+$75.9M |
| 3 |
NVIDIA
NVDA
|
+$42.6M |
| 4 |
Netflix
NFLX
|
+$41.1M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
+$40.5M |
Top Sells
| 1 |
Apple
AAPL
|
+$65.7M |
| 2 |
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
|
+$25.5M |
| 3 |
SPDR S&P 500 ETF Trust
SPY
|
+$24.4M |
| 4 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$24.3M |
| 5 |
Broadcom
AVGO
|
+$21.3M |
Sector Composition
| 1 | Technology | 15.2% |
| 2 | Consumer Discretionary | 14.52% |
| 3 | Communication Services | 10.57% |
| 4 | Healthcare | 8.15% |
| 5 | Financials | 7.15% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
951
Agios Pharmaceuticals
AGIO
$2.07B
| $116K | ﹤0.01% |
+2,183
| New | +$116K |
|
|
952
SPDR Dow Jones Industrial Average ETF Trust
DIA
$39.2B
| $116K | ﹤0.01% |
450
-94,130
| -100% | -$24.3M |
|
953
Champion Homes, Inc.
SKY
$4.19B
| $114K | ﹤0.01% |
4,723
-2,101
| -31% | -$50.7K |
|
|
ASAP
954
DELISTED
Waitr Holdings Inc. Common Stock
ASAP
| $114K | ﹤0.01% |
2,183
+1,186
| +119% | +$61.9K |
|
|
DRE
955
DELISTED
Duke Realty Corp.
DRE
| $114K | ﹤0.01% |
3,228
+46
| +1% | +$1.63K |
|
956
KKR & Co
KKR
$124B
| $113K | ﹤0.01% |
+3,681
| New | +$113K |
|
|
EPZM
957
DELISTED
Epizyme, Inc
EPZM
| $113K | ﹤0.01% |
7,089
-15,495
| -69% | -$247K |
|
958
Allegion
ALLE
$14.6B
| $112K | ﹤0.01% |
+1,098
| New | +$112K |
|
959
Integer Holdings
ITGR
$3.59B
| $112K | ﹤0.01% |
+1,536
| New | +$112K |
|
960
Invesco Golden Dragon China ETF
PGJ
$153M
| $112K | ﹤0.01% |
2,303
+579
| +34% | +$28.2K |
|
961
SPDR S&P Homebuilders ETF
XHB
$1.91B
| $112K | ﹤0.01% |
2,566
-8,637
| -77% | -$377K |
|
962
Mine Safety
MSA
$6.63B
| $111K | ﹤0.01% |
971
-2,734
| -74% | -$313K |
|
963
MEI Pharma
MEIP
$101M
| $110K | ﹤0.01% |
+1,334
| New | +$110K |
|
964
Outfront Media
OUT
$3.12B
| $110K | ﹤0.01% |
7,897
-570
| -7% | -$7.94K |
|
965
PJT Partners
PJT
$4.37B
| $110K | ﹤0.01% |
2,152
+1,208
| +128% | +$61.7K |
|
|
SAFM
966
DELISTED
Sanderson Farms Inc
SAFM
| $110K | ﹤0.01% |
+951
| New | +$110K |
|
|
KDMN
967
DELISTED
Kadmon Holdings, Inc.
KDMN
| $110K | ﹤0.01% |
+21,606
| New | +$110K |
|
|
EMKR
968
DELISTED
Emcore Corp
EMKR
| $110K | ﹤0.01% |
+3,481
| New | +$110K |
|
969
Paylocity
PCTY
$9.34B
| $109K | ﹤0.01% |
+753
| New | +$109K |
|
970
VanEck Biotech ETF
BBH
$349M
| $108K | ﹤0.01% |
+663
| New | +$108K |
|
971
Bunge Global
BG
$16.5B
| $108K | ﹤0.01% |
2,636
-9,729
| -79% | -$399K |
|
972
NatWest
NWG
$57.6B
| $108K | ﹤0.01% |
32,977
-36,865
| -53% | -$121K |
|
973
Bio-Techne
TECH
$7.93B
| $108K | ﹤0.01% |
+1,644
| New | +$108K |
|
|
WPRT
974
Westport Fuel Systems
WPRT
$40.9M
| $107K | ﹤0.01% |
8,655
+4,312
| +99% | +$53.3K |
|
975
Alamos Gold
AGI
$13.9B
| $106K | ﹤0.01% |
11,375
-50,382
| -82% | -$469K |
|