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 |
Advanced Micro Devices
AMD
|
$17.7M |
| 2 |
iShares MSCI EAFE ETF
EFA
|
$10.1M |
| 3 |
NIO
NIO
|
$7.66M |
| 4 |
Alibaba
BABA
|
$7.54M |
| 5 |
Micron Technology
MU
|
$6.73M |
Top Sells
| 1 |
NVIDIA
NVDA
|
$101M |
| 2 |
SPDR Gold Trust
GLD
|
$15.2M |
| 3 |
Amazon
AMZN
|
$9.5M |
| 4 |
SPDR S&P 500 ETF Trust
SPY
|
$8.76M |
| 5 |
Technology Select Sector SPDR Fund
XLK
|
$7.41M |
Sector Composition
| 1 | Technology | 18.66% |
| 2 | Consumer Discretionary | 14.99% |
| 3 | Communication Services | 10.06% |
| 4 | Healthcare | 9.68% |
| 5 | Financials | 9.59% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
626
nCino
NCNO
$3.52B
| $828K | ﹤0.01% |
13,514
+500
| +4% | +$30.6K |
|
|
RAD
627
DELISTED
Rite Aid Corporation
RAD
| $828K | ﹤0.01% |
51,156
| – | – |
|
628
SPDR S&P Oil & Gas Equipment & Services ETF
XES
$155M
| $825K | ﹤0.01% |
12,694
| – | – |
|
629
LyondellBasell Industries
LYB
$17.7B
| $820K | ﹤0.01% |
7,929
+100
| +1% | +$10.3K |
|
630
Fortinet
FTNT
$60.4B
| $817K | ﹤0.01% |
16,870
-5,110
| -23% | -$247K |
|
631
Permian Resources
PR
$9.75B
| $815K | ﹤0.01% |
113,294
| – | – |
|
632
Stride
LRN
$7.01B
| $813K | ﹤0.01% |
24,819
| – | – |
|
633
MarineMax
HZO
$568M
| $807K | ﹤0.01% |
16,570
| – | – |
|
|
RWT
634
Redwood Trust
RWT
$823M
| $803K | ﹤0.01% |
66,287
-450
| -0.7% | -$5.45K |
|
635
Check Point Software Technologies
CHKP
$20.7B
| $801K | ﹤0.01% |
6,870
+600
| +10% | +$70K |
|
636
Fortuna Silver Mines
FSM
$2.35B
| $801K | ﹤0.01% |
146,026
+742
| +0.5% | +$4.07K |
|
|
VTNR
637
DELISTED
Vertex Energy, Inc
VTNR
| $801K | ﹤0.01% |
66,564
+3,209
| +5% | +$38.6K |
|
638
Artisan Partners
APAM
$3.26B
| $799K | ﹤0.01% |
15,562
| – | – |
|
639
ProShares UltraPro Short 20+ Year Treasury
TTT
$22.8M
| $799K | ﹤0.01% |
21,801
| – | – |
|
640
United Rentals
URI
$62.7B
| $799K | ﹤0.01% |
2,487
-1,129
| -31% | -$363K |
|
641
iShares MSCI Turkey ETF
TUR
$165M
| $798K | ﹤0.01% |
37,346
+11,186
| +43% | +$239K |
|
642
SSR Mining
SSRM
$4.28B
| $797K | ﹤0.01% |
51,352
+100
| +0.2% | +$1.55K |
|
|
AVID
643
DELISTED
Avid Technology Inc
AVID
| $797K | ﹤0.01% |
20,323
-200
| -1% | -$7.84K |
|
644
Boston Properties
BXP
$12.2B
| $796K | ﹤0.01% |
6,931
-1,833
| -21% | -$211K |
|
645
AeroVironment
AVAV
$11.3B
| $795K | ﹤0.01% |
7,911
+219
| +3% | +$22K |
|
646
Pan American Silver
PAAS
$14.6B
| $795K | ﹤0.01% |
28,007
+2,291
| +9% | +$65K |
|
647
Credicorp
BAP
$20.7B
| $794K | ﹤0.01% |
6,569
+300
| +5% | +$36.3K |
|
648
Ichor Holdings
ICHR
$579M
| $793K | ﹤0.01% |
14,934
-100
| -0.7% | -$5.31K |
|
649
United States 12 Month Oil Fund,
USL
$42.3M
| $793K | ﹤0.01% |
30,608
-400
| -1% | -$10.4K |
|
650
Coeur Mining
CDE
$9.43B
| $788K | ﹤0.01% |
89,301
-6,644
| -7% | -$58.6K |
|