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 |
Apple
AAPL
|
$186M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$86.2M |
| 3 |
SPDR S&P 500 ETF Trust
SPY
|
$56.8M |
| 4 |
iShares Silver Trust
SLV
|
$42.9M |
| 5 |
Advanced Micro Devices
AMD
|
$36.5M |
Top Sells
| 1 |
Occidental Petroleum
OXY
|
$44.4M |
| 2 |
Financial Select Sector SPDR Fund
XLF
|
$42.8M |
| 3 |
Verizon
VZ
|
$40.8M |
| 4 |
Direxion Daily S&P 500 Bull 3x Shares
SPXL
|
$33.6M |
| 5 |
iShares China Large-Cap ETF
FXI
|
$33M |
Sector Composition
| 1 | Technology | 23.31% |
| 2 | Consumer Discretionary | 13.02% |
| 3 | Industrials | 8.24% |
| 4 | Healthcare | 7.47% |
| 5 | Financials | 6.38% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
76
Charter Communications
CHTR
$36.3B
| $9.14M | 0.01% | +16,748 | New | +$9.14M |
|
77
DraftKings
DKNG
$23.8B
| $8.91M | 0.01% | 457,448 +457,268 | +254,038% | +$8.9M |
|
78
VanEck Oil Services ETF
OIH
$886M
| $8.81M | 0.01% | 31,167 -17,719 | -36% | -$5.01M |
|
79
3M
MMM
$82.8B
| $8.35M | 0.01% | +56,052 | New | +$8.35M |
|
80
Electronic Arts
EA
$43B
| $8.21M | 0.01% | 64,866 -11,204 | -15% | -$1.42M |
|
81
Health Care Select Sector SPDR Fund
XLV
$33.9B
| $8.2M | 0.01% | +59,835 | New | +$8.2M |
|
82
ZIM Integrated Shipping Services
ZIM
$1.64B
| $8.13M | 0.01% | 111,781 +54,589 | +95% | +$3.97M |
|
83
Morgan Stanley
MS
$240B
| $7.95M | 0.01% | +90,937 | New | +$7.95M |
|
|
84
Direxion Daily S&P 500 Bull 3x Shares
SPXL
$5.45B
| $7.94M | 0.01% | 66,248 -280,271 | -81% | -$33.6M |
|
85
Unity
U
$16.7B
| $7.39M | 0.01% | +74,455 | New | +$7.39M |
|
|
PARA
86
DELISTED
Paramount Global Class B
PARA
| $7.36M | 0.01% | 194,694 -61,402 | -24% | -$2.32M |
|
87
US Global Jets ETF
JETS
$845M
| $7.29M | 0.01% | 335,051 +39,464 | +13% | +$859K |
|
88
UBS Group
UBS
$128B
| $7.25M | 0.01% | +371,095 | New | +$7.25M |
|
89
ProShares Ultra VIX Short-Term Futures ETF
UVXY
$690M
| $7.21M | 0.01% | +535,424 | New | +$7.21M |
|
90
Direxion Daily Semiconductor Bull 3X Shares
SOXL
$11.2B
| $7.07M | 0.01% | 182,437 -28,656 | -14% | -$1.11M |
|
91
Elevance Health
ELV
$71.8B
| $7.06M | 0.01% | 14,379 +88 | +0.6% | +$43.2K |
|
92
British American Tobacco
BTI
$124B
| $7M | 0.01% | +166,006 | New | +$7M |
|
93
Netflix
NFLX
$513B
| $6.83M | 0.01% | 18,223 +3,552 | +24% | +$1.33M |
|
94
Pfizer
PFE
$141B
| $6.76M | 0.01% | 130,516 +97,654 | +297% | +$5.05M |
|
95
SPDR Bloomberg High Yield Bond ETF
JNK
$8.1B
| $6.73M | 0.01% | 65,675 +46,724 | +247% | +$4.79M |
|
96
AbbVie
ABBV
$372B
| $6.71M | 0.01% | +41,399 | New | +$6.71M |
|
97
Agnico Eagle Mines
AEM
$72.4B
| $6.69M | 0.01% | 109,222 +8,535 | +8% | +$523K |
|
98
Simon Property Group
SPG
$59B
| $6.6M | 0.01% | 50,148 +13,230 | +36% | +$1.74M |
|
99
Zscaler
ZS
$43.1B
| $6.52M | 0.01% | 27,028 +21,905 | +428% | +$5.28M |
|
100
Vanguard S&P 500 ETF
VOO
$726B
| $6.4M | 0.01% | 15,414 -35,641 | -70% | -$14.8M |
|