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 | |
|---|---|---|---|---|---|---|
4451
PUT
Anavex Life Sciences
AVXL
$231M
| $135K | ﹤0.01% |
276
+244
| +763% | +$922 |
|
4452
CALL
Bank of Hawaii
BOH
$3.14B
| $135K | ﹤0.01% |
22
-11
| -33% | -$680 |
|
4453
PUT
CNO Financial Group
CNO
$4.94B
| $135K | ﹤0.01% |
87
+35
| +67% | +$482 |
|
4454
PUT
Invesco CurrencyShares Swiss Franc Trust
FXF
$411M
| $135K | ﹤0.01% |
14
+13
| +1,300% | +$1.24K |
|
4455
iShares US Technology ETF
IYW
$22.6B
| $135K | ﹤0.01% |
+2,008
| New | +$121K |
|
|
LTC
4456
PUT
LTC Properties
LTC
$2.13B
| $135K | ﹤0.01% |
36
+23
| +177% | +$819 |
|
4457
PUT
MKS Inc
MKSI
$17.4B
| $135K | ﹤0.01% |
12
-17
| -59% | -$1.69K |
|
|
SAFE
4458
Safehold
SAFE
$1.17B
| $135K | ﹤0.01% |
2,253
+870
| +63% | +$43.8K |
|
|
SEM
4459
PUT
DELISTED
Select Medical
SEM
| $135K | ﹤0.01% |
+171
| New | +$1.42K |
|
4460
CALL
Steven Madden
SHOO
$3.17B
| $135K | ﹤0.01% |
55
+44
| +400% | +$1.03K |
|
4461
CALL
Vuzix
VUZI
$178M
| $135K | ﹤0.01% |
569
+253
| +80% | +$523 |
|
4462
Wolfspeed
WOLF
$1.04B
| $135K | ﹤0.01% |
2,293
-14,861
| -87% | -$715K |
|
|
BCOV
4463
DELISTED
Brightcove, Inc.
BCOV
| $135K | ﹤0.01% |
+17,159
| New | +$138K |
|
|
PDCE
4464
PUT
DELISTED
PDC Energy, Inc.
PDCE
| $135K | ﹤0.01% |
109
-99
| -48% | -$1.18K |
|
|
ROCC
4465
PUT
DELISTED
Ranger Oil Corporation Class A Common Stock
ROCC
| $135K | ﹤0.01% |
142
| – | – |
|
|
LDL
4466
PUT
DELISTED
Lydall, Inc.
LDL
| $135K | ﹤0.01% |
100
-50
| -33% | -$553 |
|
4467
CALL
Affiliated Managers Group
AMG
$9.51B
| $134K | ﹤0.01% |
18
+17
| +1,700% | +$1.15K |
|
4468
PUT
Amphenol
APH
$185B
| $134K | ﹤0.01% |
56
-84
| -60% | -$1.88K |
|
4469
CALL
Flowers Foods
FLO
$1.58B
| $134K | ﹤0.01% |
60
+13
| +28% | +$293 |
|
4470
Frontline
FRO
$8.71B
| $134K | ﹤0.01% |
19,224
-35,099
| -65% | -$298K |
|
|
SEE
4471
PUT
DELISTED
Sealed Air
SEE
| $134K | ﹤0.01% |
41
-27
| -40% | -$811 |
|
4472
Teekay
TK
$996M
| $134K | ﹤0.01% |
56,171
+13,369
| +31% | +$40.9K |
|
4473
PUT
Tetra Tech
TTEK
$8.77B
| $134K | ﹤0.01% |
85
-5
| -6% | -$76 |
|
4474
Virtu Financial
VIRT
$5.04B
| $134K | ﹤0.01% |
5,688
-56,154
| -91% | -$1.31M |
|
|
CLCT
4475
DELISTED
Collectors Universe
CLCT
| $134K | ﹤0.01% |
+3,934
| New | +$89.3K |
|
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.