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 |
Financial Select Sector SPDR Fund
XLF
|
+$42.3M |
| 2 |
Shopify
SHOP
|
+$37.4M |
| 3 |
Verizon
VZ
|
+$34M |
| 4 |
iShares China Large-Cap ETF
FXI
|
+$33M |
| 5 |
Merck
MRK
|
+$28M |
Top Sells
| 1 |
AMC Entertainment Holdings
AMC
|
+$38.3M |
| 2 |
Carnival Corp
CCL
|
+$37.6M |
| 3 |
GE Aerospace
GE
|
+$33M |
| 4 |
Advanced Micro Devices
AMD
|
+$30.6M |
| 5 |
Micron Technology
MU
|
+$28.3M |
Sector Composition
| 1 | Technology | 20.53% |
| 2 | Consumer Discretionary | 13.81% |
| 3 | Healthcare | 11.39% |
| 4 | Communication Services | 7.32% |
| 5 | Industrials | 6.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
676
Varonis Systems
VRNS
$6.31B
| $678K | ﹤0.01% |
13,902
+10,010
| +257% | +$488K |
|
677
Invesco Water Resources ETF
PHO
$2.2B
| $676K | ﹤0.01% |
11,115
+6,555
| +144% | +$399K |
|
678
AerCap
AER
$21.7B
| $673K | ﹤0.01% |
+10,302
| New | +$673K |
|
|
ATCO
679
DELISTED
Atlas Corp.
ATCO
| $670K | ﹤0.01% |
47,274
-17,168
| -27% | -$243K |
|
680
Stride
LRN
$6.89B
| $669K | ﹤0.01% |
20,092
-4,727
| -19% | -$157K |
|
681
Planet Labs
PL
$2.72B
| $669K | ﹤0.01% |
+108,863
| New | +$669K |
|
682
PubMatic
PUBM
$370M
| $669K | ﹤0.01% |
19,666
+14,842
| +308% | +$505K |
|
683
Banco Macro
BMA
$3.03B
| $665K | ﹤0.01% |
47,478
+47,378
| +47,378% | +$664K |
|
684
ProShares VIX Mid-Term Futures ETF
VIXM
$41.2M
| $663K | ﹤0.01% |
21,716
+20,764
| +2,181% | +$634K |
|
685
Direxion Daily CSI China Internet Index Bull 2X Shares
CWEB
$350M
| $662K | ﹤0.01% |
+5,276
| New | +$662K |
|
|
PVG
686
DELISTED
PRETIUM RESOURCES INC.
PVG
| $662K | ﹤0.01% |
46,987
+34,534
| +277% | +$487K |
|
|
CLPR
687
Clipper Realty
CLPR
$69.8M
| $660K | ﹤0.01% |
+66,400
| New | +$660K |
|
688
Galicia Financial Group
GGAL
$5.15B
| $660K | ﹤0.01% |
69,614
-63,341
| -48% | -$601K |
|
689
FerroAtlántica
GSM
$780M
| $660K | ﹤0.01% |
106,436
+105,465
| +10,861% | +$654K |
|
690
Bakkt Holdings
BKKT
$135M
| $656K | ﹤0.01% |
+3,088
| New | +$656K |
|
691
GlobalFoundries
GFS
$17.7B
| $655K | ﹤0.01% |
+10,095
| New | +$655K |
|
692
CryoPort
CYRX
$480M
| $653K | ﹤0.01% |
11,038
-4,864
| -31% | -$288K |
|
693
iShares Latin America 40 ETF
ILF
$1.79B
| $653K | ﹤0.01% |
27,848
+13,731
| +97% | +$322K |
|
694
Stitch Fix
SFIX
$745M
| $652K | ﹤0.01% |
34,500
+27,852
| +419% | +$526K |
|
695
Expeditors International
EXPD
$16.5B
| $648K | ﹤0.01% |
+4,826
| New | +$648K |
|
696
HP
HPQ
$26.5B
| $648K | ﹤0.01% |
+17,221
| New | +$648K |
|
697
Kyndryl
KD
$7.49B
| $645K | ﹤0.01% |
+35,673
| New | +$645K |
|
|
ARNA
698
DELISTED
Arena Pharmaceuticals Inc
ARNA
| $643K | ﹤0.01% |
+6,927
| New | +$643K |
|
699
Hormel Foods
HRL
$13.7B
| $636K | ﹤0.01% |
+13,038
| New | +$636K |
|
700
Helmerich & Payne
HP
$2.07B
| $635K | ﹤0.01% |
26,799
-4,719
| -15% | -$112K |
|