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
| Rank | Stock | Value |
|---|---|---|
| 1 |
Invesco QQQ Trust
QQQ
|
+$77.3M |
| 2 |
SPDR Gold Trust
GLD
|
+$73.2M |
| 3 |
iShares MSCI EAFE ETF
EFA
|
+$38.5M |
| 4 |
Netflix
NFLX
|
+$38.4M |
| 5 |
NVIDIA
NVDA
|
+$36.3M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$55.9M |
| 2 |
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
|
+$28.3M |
| 3 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$23.1M |
| 4 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$23.1M |
| 5 |
Adobe
ADBE
|
+$22M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.49% |
| 2 | Consumer Discretionary | 0.47% |
| 3 | Communication Services | 0.34% |
| 4 | Healthcare | 0.26% |
| 5 | Financials | 0.23% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
76
CALL
State Street SPDR NYSE Technology ETF
XNTK
$2.16B
| $95.3M | 0.15% |
20,653
+4,689
| +29% | +$412K |
|
77
PUT
Citigroup
C
$223B
| $91.1M | 0.15% |
17,835
+9,736
| +120% | +$462K |
|
78
PUT
lululemon athletica
LULU
$13.2B
| $90.9M | 0.15% |
2,914
+745
| +34% | +$191K |
|
79
CALL
Advanced Micro Devices
AMD
$888B
| $90.7M | 0.14% |
17,249
-4,795
| -22% | -$254K |
|
|
80
CALL
Adobe
ADBE
$90.3B
| $89.6M | 0.14% |
2,058
+247
| +14% | +$91.5K |
|
|
81
CALL
Citigroup
C
$223B
| $88.7M | 0.14% |
17,352
+8,873
| +105% | +$421K |
|
82
PUT
Home Depot
HD
$331B
| $87.2M | 0.14% |
3,480
-1,966
| -36% | -$450K |
|
83
CALL
Walmart Inc
WMT
$878B
| $86.9M | 0.14% |
21,768
+9,792
| +82% | +$403K |
|
84
PUT
Roku
ROKU
$21.4B
| $86.8M | 0.14% |
7,445
+2,156
| +41% | +$247K |
|
85
PUT
Wayfair
W
$11.2B
| $85.6M | 0.14% |
4,333
+1,534
| +55% | +$229K |
|
86
CALL
Johnson & Johnson
JNJ
$603B
| $85.5M | 0.14% |
6,082
+162
| +3% | +$23.6K |
|
87
CALL
PayPal
PYPL
$49.3B
| $83.1M | 0.13% |
4,769
-390
| -8% | -$53.9K |
|
88
CALL
Mastercard
MA
$476B
| $81.9M | 0.13% |
2,769
+240
| +9% | +$67.7K |
|
89
CALL
McDonald's
MCD
$188B
| $81.1M | 0.13% |
4,398
+1,713
| +64% | +$314K |
|
90
CALL
VanEck Durable High Dividend ETF
DURA
$38.1M
| $79.9M | 0.13% |
6,618
+6,524
| +6,940% | +$166K |
|
91
PUT
JD.com
JD
$41.1B
| $79.4M | 0.13% |
13,200
+2,963
| +29% | +$150K |
|
92
PUT
AT&T
T
$155B
| $79M | 0.13% |
34,579
-5,502
| -14% | -$125K |
|
93
CALL
ExxonMobil
XOM
$629B
| $77.7M | 0.12% |
17,385
-3,832
| -18% | -$172K |
|
94
PUT
Starbucks
SBUX
$119B
| $75M | 0.12% |
10,188
-777
| -7% | -$58.4K |
|
95
Tesla
TSLA
$1.42T
| $74.2M | 0.12% |
1,030,380
+69,180
| +7% | +$3.74M |
|
|
96
CALL
Roku
ROKU
$21.4B
| $73.5M | 0.12% |
6,306
+2,467
| +64% | +$282K |
|
97
CALL
Direxion Daily Technology Bull 3x ETF
TECL
$5.6B
| $73.2M | 0.12% |
162,300
+33,380
| +26% | +$590K |
|
98
CALL
Bank of America
BAC
$430B
| $72.8M | 0.12% |
30,634
+3,193
| +12% | +$75.4K |
|
99
CALL
iShares Silver Trust
SLV
$28.4B
| $72.2M | 0.12% |
42,461
+16,445
| +63% | +$251K |
|
100
PUT
Broadcom
AVGO
$1.84T
| $71.8M | 0.11% |
22,750
-11,880
| -34% | -$332K |
|
Similar funds
Simplex Trading's Q2 2020 Portfolio in Review
As of Q2 2020, Simplex Trading held 8,917 positions worth $62.7B, up 11% from $56.7B the previous quarter. Its ten largest holdings account for 44% of the portfolio.
Simplex Trading's Q2 2020 filing shows 1,290 new, 3,427 increased, 2,723 reduced and 1,278 closed positions. Its largest new stake was iShares MSCI EAFE ETF: 665,841 shares worth $40.5M. The largest sale was Apple, an estimated $55.9M.
By sector, the portfolio is most concentrated in Technology at 0.49% of assets, up from 0.49% a quarter earlier, followed by Consumer Discretionary and Communication Services.
- Simplex Trading's largest Q2 2020 buy was iShares MSCI EAFE ETF: 665,841 shares worth $40.5M.
- Simplex Trading added most to Invesco QQQ Trust in Q2 2020, an estimated $77.3M increase.
- Simplex Trading's biggest Q2 2020 reduction was Apple, cutting an estimated $55.9M.
- Simplex Trading fully exited Adobe in Q2 2020, selling an estimated $22M.
- Simplex Trading's ten largest holdings make up 44% of its $62.7B portfolio in Q2 2020.
- Simplex Trading opened 1,290 new positions and closed 1,278 in Q2 2020.
- Simplex Trading's portfolio value rose 11% quarter-over-quarter to $62.7B.
Based on Simplex Trading's 13F filing for Q2 2020, filed 13 Jul 2020.