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 | |
|---|---|---|---|---|---|---|
|
HBI
2001
CALL
DELISTED
Hanesbrands
HBI
| $1.17M | ﹤0.01% |
1,039
-446
| -30% | -$4.46K |
|
2002
PUT
TD Synnex
SNX
$19.4B
| $1.17M | ﹤0.01% |
196
+176
| +880% | +$8.22K |
|
2003
PUT
Scotiabank
BNS
$106B
| $1.17M | ﹤0.01% |
284
+35
| +14% | +$1.4K |
|
2004
CALL
Franklin Resources
BEN
$16.9B
| $1.17M | ﹤0.01% |
558
+410
| +277% | +$7.74K |
|
|
SA
2005
PUT
Seabridge Gold
SA
$2.8B
| $1.17M | ﹤0.01% |
667
-290
| -30% | -$4.1K |
|
|
BBL
2006
CALL
DELISTED
BHP Group Plc American Depositary Shares (Each representing two Ordinary Shares)
BBL
| $1.16M | ﹤0.01% |
283
-842
| -75% | -$30.6K |
|
2007
VF Corp
VFC
$6.68B
| $1.16M | ﹤0.01% |
+19,053
| New | +$1.11M |
|
2008
CALL
Arthur J. Gallagher & Co
AJG
$63.7B
| $1.16M | ﹤0.01% |
119
+68
| +133% | +$6.02K |
|
2009
Tradeweb Markets
TW
$21.3B
| $1.16M | ﹤0.01% |
+19,950
| New | +$1.15M |
|
|
WUBA
2010
PUT
DELISTED
58.com Inc
WUBA
| $1.16M | ﹤0.01% |
215
-16
| -7% | -$825 |
|
2011
PUT
Vodafone
VOD
$34.9B
| $1.16M | ﹤0.01% |
726
-866
| -54% | -$13.1K |
|
2012
Radware
RDWR
$1.24B
| $1.16M | ﹤0.01% |
49,011
-19,308
| -28% | -$443K |
|
2013
iShares MSCI United Kingdom ETF
EWU
$4.04B
| $1.15M | ﹤0.01% |
44,760
+2,281
| +5% | +$57.7K |
|
|
BLCM
2014
CALL
DELISTED
Bellicum Pharmaceuticals, Inc.
BLCM
| $1.15M | ﹤0.01% |
1,550
| – | – |
|
|
GLUU
2015
CALL
DELISTED
Glu Mobile Inc.
GLUU
| $1.15M | ﹤0.01% |
1,242
+708
| +133% | +$6.03K |
|
2016
Sociedad Química y Minera de Chile
SQM
$19.6B
| $1.15M | ﹤0.01% |
43,979
+22,904
| +109% | +$551K |
|
|
NVO
2017
CALL
Novo Nordisk
NVO
$216B
| $1.15M | ﹤0.01% |
350
-116
| -25% | -$3.7K |
|
2018
PUT
Murphy Oil
MUR
$5.58B
| $1.14M | ﹤0.01% |
826
+718
| +665% | +$8.25K |
|
2019
CALL
Ingersoll Rand
IR
$33B
| $1.14M | ﹤0.01% |
405
+323
| +394% | +$9.12K |
|
2020
CALL
Stride
LRN
$3.69B
| $1.14M | ﹤0.01% |
418
-262
| -39% | -$6.3K |
|
2021
CALL
Range Resources
RRC
$9.11B
| $1.14M | ﹤0.01% |
2,021
+1,008
| +100% | +$5.59K |
|
2022
PUT
Casey's General Stores
CASY
$31.9B
| $1.14M | ﹤0.01% |
76
-46
| -38% | -$6.93K |
|
2023
PUT
Pembina Pipeline
PBA
$29.9B
| $1.14M | ﹤0.01% |
454
-523
| -54% | -$12.1K |
|
2024
Direxion Daily Financial Bull 3x ETF
FAS
$2.4B
| $1.13M | ﹤0.01% |
36,213
-75,291
| -68% | -$2.23M |
|
2025
America Movil
AMX
$78.1B
| $1.13M | ﹤0.01% |
89,037
+81,254
| +1,044% | +$1.02M |
|
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.