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 | |
|---|---|---|---|---|---|---|
1801
PUT
Green Dot
GDOT
$753M
| $1.42M | ﹤0.01% |
290
-595
| -67% | -$20.1K |
|
|
CONN
1802
CALL
DELISTED
Conn's Inc.
CONN
| $1.42M | ﹤0.01% |
1,410
-167
| -11% | -$1.1K |
|
1803
PUT
Fair Isaac
FICO
$28.7B
| $1.42M | ﹤0.01% |
34
-20
| -37% | -$7.3K |
|
1804
PUT
National Beverage
FIZZ
$2.87B
| $1.42M | ﹤0.01% |
466
+312
| +203% | +$8.42K |
|
1805
CALL
Newell Brands
NWL
$2.16B
| $1.42M | ﹤0.01% |
895
+312
| +54% | +$4.28K |
|
1806
PUT
Alkermes
ALKS
$8.82B
| $1.42M | ﹤0.01% |
732
+375
| +105% | +$6.09K |
|
1807
CALL
Wolfspeed
WOLF
$1.2B
| $1.42M | ﹤0.01% |
240
-183
| -43% | -$8.81K |
|
1808
CALL
SL Green Realty
SLG
$3.88B
| $1.42M | ﹤0.01% |
298
+257
| +627% | +$11.8K |
|
|
CNH
1809
CALL
CNH Industrial
CNH
$13.8B
| $1.42M | ﹤0.01% |
2,320
+2,318
| +115,900% | +$12.8K |
|
1810
PUT
Hewlett Packard
HPE
$63.2B
| $1.42M | ﹤0.01% |
1,458
+96
| +7% | +$943 |
|
|
ETFC
1811
PUT
DELISTED
E*Trade Financial Corporation
ETFC
| $1.42M | ﹤0.01% |
285
-1,754
| -86% | -$75.6K |
|
1812
PUT
First American
FAF
$7.67B
| $1.42M | ﹤0.01% |
+295
| New | +$13.9K |
|
1813
PUT
Penumbra
PEN
$12.5B
| $1.41M | ﹤0.01% |
79
+67
| +558% | +$11.6K |
|
1814
PUT
Proshares UltraShort Technology
REW
$3.48M
| $1.41M | ﹤0.01% |
244
+147
| +152% | +$79.3K |
|
1815
CALL
FTI Consulting
FCN
$4.82B
| $1.41M | ﹤0.01% |
+123
| New | +$14.9K |
|
1816
PUT
Popular Inc
BPOP
$11B
| $1.41M | ﹤0.01% |
378
-157
| -29% | -$5.85K |
|
1817
PUT
TG Therapeutics
TGTX
$8.58B
| $1.4M | ﹤0.01% |
721
-54
| -7% | -$870 |
|
1818
Tyler Technologies
TYL
$12.2B
| $1.4M | ﹤0.01% |
4,045
+327
| +9% | +$110K |
|
|
CLR
1819
CALL
DELISTED
CONTINENTAL RESOURCES INC.
CLR
| $1.4M | ﹤0.01% |
800
-462
| -37% | -$6.49K |
|
|
SPR
1820
PUT
DELISTED
Spirit AeroSystems
SPR
| $1.4M | ﹤0.01% |
585
-111
| -16% | -$2.52K |
|
1821
CALL
Macerich
MAC
$7.32B
| $1.4M | ﹤0.01% |
1,560
+1,089
| +231% | +$8.44K |
|
|
KYNB
1822
PUT
Kyntra Bio
KYNB
$28.5M
| $1.4M | ﹤0.01% |
14
-7
| -33% | -$6.5K |
|
1823
CALL
Steel Dynamics
STLD
$35.6B
| $1.4M | ﹤0.01% |
536
+206
| +62% | +$5.15K |
|
1824
PUT
Roper Technologies
ROP
$36.3B
| $1.4M | ﹤0.01% |
36
-57
| -61% | -$20.4K |
|
1825
Ventas
VTR
$48.9B
| $1.4M | ﹤0.01% |
38,138
-22,224
| -37% | -$734K |
|
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.