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 | |
|---|---|---|---|---|---|---|
3826
PUT
Beazer Homes USA
BZH
$903M
| $233K | ﹤0.01% |
232
+178
| +330% | +$1.42K |
|
|
INN
3827
CALL
Summit Hotel Properties
INN
$748M
| $233K | ﹤0.01% |
394
+364
| +1,213% | +$2.05K |
|
|
SCS
3828
PUT
DELISTED
Steelcase
SCS
| $233K | ﹤0.01% |
194
-64
| -25% | -$700 |
|
|
TGI
3829
PUT
DELISTED
Triumph Group
TGI
| $233K | ﹤0.01% |
259
+222
| +600% | +$1.64K |
|
|
WLL
3830
PUT
DELISTED
Whiting Petroleum Corporation
WLL
| $233K | ﹤0.01% |
28
+21
| +300% | +$1.64K |
|
3831
PUT
FuelCell Energy
FCEL
$1.72B
| $232K | ﹤0.01% |
34
+11
| +48% | +$678 |
|
3832
CALL
Oil States International
OIS
$512M
| $232K | ﹤0.01% |
+489
| New | +$1.88K |
|
3833
Vanguard Long-Term Corporate Bond ETF
VCLT
$8.86B
| $232K | ﹤0.01% |
2,190
-482
| -18% | -$49.3K |
|
3834
ProShares Ultra Dow30
DDM
$536M
| $231K | ﹤0.01% |
+11,490
| New | +$213K |
|
3835
CALL
Veritone
VERI
$100M
| $231K | ﹤0.01% |
156
+141
| +940% | +$1.18K |
|
|
EQC
3836
CALL
DELISTED
Equity Commonwealth
EQC
| $231K | ﹤0.01% |
72
+37
| +106% | +$1.22K |
|
|
MRO
3837
DELISTED
Marathon Oil Corporation
MRO
| $231K | ﹤0.01% |
37,832
-73,616
| -66% | -$407K |
|
3838
PUT
ATI
ATI
$26.3B
| $230K | ﹤0.01% |
226
-21
| -9% | -$182 |
|
3839
PUT
ADT
ADT
$5.24B
| $229K | ﹤0.01% |
287
+68
| +31% | +$440 |
|
|
AXU
3840
CALL
DELISTED
Alexco Resource Corp
AXU
| $229K | ﹤0.01% |
1,021
+489
| +92% | +$905 |
|
|
AL
3841
DELISTED
Air Lease Corp
AL
| $228K | ﹤0.01% |
7,815
+4,455
| +133% | +$119K |
|
|
DCH
3842
Dauch Corp
DCH
$1.32B
| $228K | ﹤0.01% |
30,112
+22,363
| +289% | +$129K |
|
3843
CF Industries
CF
$18.4B
| $228K | ﹤0.01% |
8,104
-60,300
| -88% | -$1.72M |
|
3844
PUT
SFL Corp
SFL
$1.59B
| $228K | ﹤0.01% |
246
+134
| +120% | +$1.34K |
|
|
PENG
3845
PUT
Penguin Solutions Inc
PENG
$2.69B
| $228K | ﹤0.01% |
168
-292
| -63% | -$3.72K |
|
|
EPZM
3846
CALL
DELISTED
Epizyme, Inc
EPZM
| $228K | ﹤0.01% |
142
-40
| -22% | -$698 |
|
3847
CALL
Ameresco
AMRC
$1.12B
| $227K | ﹤0.01% |
82
+38
| +86% | +$766 |
|
3848
CALL
Camtek
CAMT
$7.07B
| $227K | ﹤0.01% |
181
+164
| +965% | +$1.86K |
|
3849
Houlihan Lokey
HLI
$9.87B
| $227K | ﹤0.01% |
4,094
+3,709
| +963% | +$216K |
|
|
LGF.B
3850
CALL
DELISTED
Lions Gate Entertainment Corp. Class B Non-Voting Shares
LGF.B
| $227K | ﹤0.01% |
311
+31
| +11% | +$214 |
|
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.