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 | +$237M | |
| 2 | +$103M | |
| 3 | +$93.9M | |
| 4 |
iShares Bitcoin Trust
IBIT
|
+$80.5M |
| 5 |
Pinduoduo
PDD
|
+$61.3M |
Top Sells
| 1 | +$129M | |
| 2 | +$108M | |
| 3 | +$89.1M | |
| 4 |
Alphabet (Google) Class C
GOOG
|
+$79.3M |
| 5 |
Micron Technology
MU
|
+$64.3M |
Sector Composition
| 1 | Technology | 34.04% |
| 2 | Consumer Discretionary | 13.08% |
| 3 | Healthcare | 10.63% |
| 4 | Financials | 7.02% |
| 5 | Industrials | 3.96% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
51
Adobe
ADBE
$141B
| $11.4M | 0.01% |
32,247
+6,617
|
|
||
52
D-Wave Quantum
QBTS
$9.24B
| $11.1M | 0.01% |
449,601
+370,856
|
|
||
53
3M
MMM
$90.9B
| $10.5M | 0.01% |
67,633
+62,109
|
|
||
54
Invesco S&P 500 Equal Weight ETF
RSP
$74.8B
| $10.1M | 0.01% |
53,151
+14,252
|
|
||
55
TeraWulf
WULF
$5.29B
| $9.85M | 0.01% |
862,222
-872
|
|
||
56
Mercado Libre
MELI
$107B
| $9.49M | ﹤0.01% |
4,060
+50
|
|
||
57
ServiceNow
NOW
$180B
| $9.48M | ﹤0.01% |
10,300
+5,625
|
|
||
58
Strategy Inc
MSTR
$64.5B
| $9.43M | ﹤0.01% |
+29,257
|
|
||
59
Vertiv
VRT
$66.3B
| $9.4M | ﹤0.01% |
62,337
+6,234
|
|
||
60
Direxion Daily TSLA Bull 2X Shares
TSLL
$7.38B
| $9.15M | ﹤0.01% |
433,696
-382,936
|
|
||
61
Warner Bros
WBD
$55B
| $9.1M | ﹤0.01% |
465,696
-46,249
|
|
||
62
Chipotle Mexican Grill
CMG
$41.4B
| $8.99M | ﹤0.01% |
229,446
-104,552
|
|
||
63
Elevance Health
ELV
$72.8B
| $8.91M | ﹤0.01% |
27,588
+26,697
|
|
||
64
iShares MSCI Emerging Markets ETF
EEM
$21.1B
| $8.88M | ﹤0.01% |
166,335
-140,080
|
|
||
65
Moderna
MRNA
$10.4B
| $8.66M | ﹤0.01% |
335,388
-46,399
|
|
||
|
ETH
66
Grayscale Ethereum Mini Trust ETF
ETH
$2.43B
| $8.58M | ﹤0.01% |
218,952
+180,219
|
|
||
67
ProShares Ultra Silver
AGQ
$1.29B
| $8.26M | ﹤0.01% |
108,381
+65,986
|
|
||
68
Snap
SNAP
$15.6B
| $8.25M | ﹤0.01% |
1,070,510
+287,673
|
|
||
69
NIO
NIO
$15.9B
| $8.23M | ﹤0.01% |
1,080,624
+494,379
|
|
||
70
Dow Inc
DOW
$15.8B
| $8.22M | ﹤0.01% |
360,761
+339,312
|
|
||
71
GraniteShares 2x Long AMD Daily ETF
AMDL
$1.55B
| $8.18M | ﹤0.01% |
791,465
+369,742
|
|
||
72
Pan American Silver
PAAS
$16.2B
| $8.04M | ﹤0.01% |
+207,566
|
|
||
73
Oscar Health
OSCR
$4.35B
| $7.97M | ﹤0.01% |
420,833
+210,057
|
|
||
|
74
Alphabet (Google) Class C
GOOG
$3.47T
| $7.89M | ﹤0.01% |
32,412
-325,458
|
|
||
|
NBIS
75
Nebius Group N.V.
NBIS
$23.7B
| $7.78M | ﹤0.01% |
69,267
+14,384
|
|