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 | |
|---|---|---|---|---|---|---|
801
BioSig Technologies, Inc. Common Stock
BSGM
$151M
| $176K | ﹤0.01% |
2,456
-1,765
| -42% | -$126K |
|
802
Goosehead Insurance
GSHD
$2.04B
| $176K | ﹤0.01% |
+2,347
| New | +$176K |
|
803
Navient
NAVI
$1.3B
| $176K | ﹤0.01% |
+25,094
| New | +$176K |
|
804
Hologic
HOLX
$14.6B
| $175K | ﹤0.01% |
3,077
-10,804
| -78% | -$614K |
|
805
Host Hotels & Resorts
HST
$12.1B
| $175K | ﹤0.01% |
16,275
-4,339
| -21% | -$46.7K |
|
806
Kratos Defense & Security Solutions
KTOS
$11B
| $175K | ﹤0.01% |
+11,214
| New | +$175K |
|
|
TAST
807
DELISTED
Carrols Restaurant Group, Inc.
TAST
| $175K | ﹤0.01% |
36,296
+25,722
| +243% | +$124K |
|
808
Amgen
AMGN
$149B
| $174K | ﹤0.01% |
739
-21,172
| -97% | -$4.99M |
|
809
Black Stone Minerals
BSM
$2.6B
| $174K | ﹤0.01% |
26,910
+21,016
| +357% | +$136K |
|
810
KBR
KBR
$6.35B
| $173K | ﹤0.01% |
+7,702
| New | +$173K |
|
811
Calix
CALX
$4.09B
| $172K | ﹤0.01% |
11,560
-17,270
| -60% | -$257K |
|
812
Yext
YEXT
$1.05B
| $172K | ﹤0.01% |
+10,382
| New | +$172K |
|
|
MDLA
813
DELISTED
Medallia, Inc.
MDLA
| $172K | ﹤0.01% |
+6,821
| New | +$172K |
|
814
iShares MSCI Turkey ETF
TUR
$163M
| $171K | ﹤0.01% |
+7,397
| New | +$171K |
|
815
ProShares UltraShort Yen
YCS
$30.6M
| $170K | ﹤0.01% |
+9,156
| New | +$170K |
|
816
Omnicell
OMCL
$1.49B
| $169K | ﹤0.01% |
+2,399
| New | +$169K |
|
|
VIVO
817
DELISTED
Meridian Bioscience Inc
VIVO
| $169K | ﹤0.01% |
7,278
-3,343
| -31% | -$77.6K |
|
818
Movado Group
MOV
$424M
| $167K | ﹤0.01% |
+15,425
| New | +$167K |
|
819
Quanta Services
PWR
$58.4B
| $167K | ﹤0.01% |
4,262
-6,648
| -61% | -$260K |
|
|
AMJ
820
DELISTED
JP Morgan Alerian MLP Index ETN 5/24/24
AMJ
| $166K | ﹤0.01% |
12,582
-2,195
| -15% | -$29K |
|
821
Murphy Oil
MUR
$3.67B
| $165K | ﹤0.01% |
+11,980
| New | +$165K |
|
|
ARNA
822
DELISTED
Arena Pharmaceuticals Inc
ARNA
| $165K | ﹤0.01% |
+2,628
| New | +$165K |
|
823
Alaska Air
ALK
$7.25B
| $164K | ﹤0.01% |
4,523
-7,899
| -64% | -$286K |
|
824
Apple Hospitality REIT
APLE
$2.99B
| $164K | ﹤0.01% |
17,028
-4,160
| -20% | -$40.1K |
|
|
SRGA
825
DELISTED
Surgalign Holdings, Inc. Common Stock
SRGA
| $164K | ﹤0.01% |
+1,720
| New | +$164K |
|