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 | |
|---|---|---|---|---|---|---|
4126
PUT
Teekay
TK
$981M
| $177K | ﹤0.01% |
739
+87
| +13% | +$266 |
|
4127
PUT
Towne Bank
TOWN
$3.53B
| $177K | ﹤0.01% |
94
+54
| +135% | +$1K |
|
4128
Tapestry
TPR
$30.5B
| $177K | ﹤0.01% |
+13,364
| New | +$190K |
|
4129
CALL
TechTarget
TTGT
$323M
| $177K | ﹤0.01% |
59
+57
| +2,850% | +$1.44K |
|
|
BBL
4130
DELISTED
BHP Group Plc American Depositary Shares (Each representing two Ordinary Shares)
BBL
| $177K | ﹤0.01% |
+4,308
| New | +$157K |
|
|
STEX
4131
Streamex Corp
STEX
$76.1M
| $176K | ﹤0.01% |
2,456
-1,765
| -42% | -$154K |
|
4132
Goosehead Insurance
GSHD
$1.64B
| $176K | ﹤0.01% |
+2,347
| New | +$136K |
|
4133
CALL
Pediatrix Medical
MD
$2.21B
| $176K | ﹤0.01% |
103
-116
| -53% | -$1.72K |
|
4134
Navient
NAVI
$822M
| $176K | ﹤0.01% |
+25,094
| New | +$187K |
|
4135
PUT
Unisys
UIS
$250M
| $176K | ﹤0.01% |
162
+155
| +2,214% | +$1.79K |
|
4136
CALL
Aegon
AEG
$13.6B
| $175K | ﹤0.01% |
648
-695
| -52% | -$1.71K |
|
|
HOLX
4137
DELISTED
Hologic
HOLX
| $175K | ﹤0.01% |
3,077
-10,804
| -78% | -$530K |
|
4138
Host Hotels & Resorts
HST
$17.4B
| $175K | ﹤0.01% |
16,275
-4,339
| -21% | -$49.8K |
|
4139
Kratos Defense & Security Solutions
KTOS
$9.12B
| $175K | ﹤0.01% |
+11,214
| New | +$179K |
|
4140
PUT
Manitowoc
MTW
$527M
| $175K | ﹤0.01% |
161
+106
| +193% | +$1K |
|
|
TAST
4141
DELISTED
Carrols Restaurant Group, Inc.
TAST
| $175K | ﹤0.01% |
36,296
+25,722
| +243% | +$97.1K |
|
|
MNR
4142
CALL
DELISTED
Monmouth Real Estate Investment Corp
MNR
| $175K | ﹤0.01% |
121
+42
| +53% | +$545 |
|
4143
Amgen
AMGN
$212B
| $174K | ﹤0.01% |
739
-21,172
| -97% | -$4.83M |
|
|
BCLI
4144
PUT
DELISTED
BRAINSTORM CELL THERAPUTC
BCLI
| $174K | ﹤0.01% |
10
-22
| -69% | -$2.37K |
|
4145
Black Stone Minerals
BSM
$3.14B
| $174K | ﹤0.01% |
26,910
+21,016
| +357% | +$134K |
|
4146
CALL
Relmada Therapeutics
RLMD
$549M
| $174K | ﹤0.01% |
39
+33
| +550% | +$1.4K |
|
|
ZYXI
4147
CALL
DELISTED
Zynex
ZYXI
| $174K | ﹤0.01% |
77
+4
| +5% | +$67 |
|
4148
PUT
IDEX
IEX
$16.6B
| $173K | ﹤0.01% |
11
-8
| -42% | -$1.22K |
|
4149
KBR
KBR
$4.74B
| $173K | ﹤0.01% |
+7,702
| New | +$167K |
|
4150
PUT
Merit Medical Systems
MMSI
$4.67B
| $173K | ﹤0.01% |
38
-158
| -81% | -$6.38K |
|
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.