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 | |
|---|---|---|---|---|---|---|
3126
Cemex
CX
$17.4B
| $421K | ﹤0.01% |
146,493
+118,467
| +423% | +$278K |
|
3127
Ericsson
ERIC
$30.7B
| $421K | ﹤0.01% |
+45,303
| New | +$393K |
|
|
JKS
3128
PUT
JinkoSolar
JKS
$775M
| $421K | ﹤0.01% |
238
-44
| -16% | -$706 |
|
3129
PUT
US Physical Therapy
USPH
$1.14B
| $421K | ﹤0.01% |
52
+7
| +16% | +$511 |
|
3130
CALL
Arbutus Biopharma
ABUS
$865M
| $419K | ﹤0.01% |
2,306
-38
| -2% | -$62 |
|
3131
CALL
A.O. Smith
AOS
$8.38B
| $419K | ﹤0.01% |
89
-23
| -21% | -$1K |
|
3132
CALL
Aurinia Pharmaceuticals
AUPH
$1.97B
| $419K | ﹤0.01% |
258
-749
| -74% | -$12K |
|
|
P
3133
PUT
Everpure Inc
P
$24.8B
| $419K | ﹤0.01% |
242
+210
| +656% | +$3.15K |
|
3134
CALL
Invesco DB Base Metals Fund
DBB
$306M
| $418K | ﹤0.01% |
369
+135
| +58% | +$1.73K |
|
3135
PUT
AutoNation
AN
$6.97B
| $417K | ﹤0.01% |
111
+37
| +50% | +$1.34K |
|
|
NUVA
3136
PUT
DELISTED
NuVasive, Inc.
NUVA
| $417K | ﹤0.01% |
+75
| New | +$4.34K |
|
3137
CALL
Invesco CurrencyShares Swiss Franc Trust
FXF
$409M
| $416K | ﹤0.01% |
43
+42
| +4,200% | +$4K |
|
3138
Southwest Airlines
LUV
$22.1B
| $416K | ﹤0.01% |
12,180
+12,020
| +7,513% | +$382K |
|
3139
Hewlett Packard
HPE
$63.2B
| $415K | ﹤0.01% |
42,743
-35,750
| -46% | -$351K |
|
3140
PUT
Liberty Latin America Class C
LILAK
$1.5B
| $415K | ﹤0.01% |
514
+389
| +311% | +$3.31K |
|
3141
CALL
Golar LNG
GLNG
$4.95B
| $414K | ﹤0.01% |
572
-748
| -57% | -$5.19K |
|
3142
PUT
KALA BIO
KALA
$11.8M
| – | – |
0
| – | – |
|
3143
PUT
Insperity
NSP
$1.85B
| $414K | ﹤0.01% |
64
+11
| +21% | +$551 |
|
|
LGF.B
3144
PUT
DELISTED
Lions Gate Entertainment Corp. Class B Non-Voting Shares
LGF.B
| $414K | ﹤0.01% |
561
-29
| -5% | -$200 |
|
3145
Emergent Biosolutions
EBS
$375M
| $413K | ﹤0.01% |
5,229
+2,479
| +90% | +$185K |
|
3146
Marriott International
MAR
$98.7B
| $413K | ﹤0.01% |
4,821
-46,195
| -91% | -$4.01M |
|
3147
Plains GP Holdings
PAGP
$5.23B
| $413K | ﹤0.01% |
+46,501
| New | +$410K |
|
3148
CALL
Sabesp
SBS
$19.7B
| $413K | ﹤0.01% |
2,027
-1,134
| -36% | -$1.9K |
|
3149
Teradata
TDC
$2.68B
| $413K | ﹤0.01% |
19,860
-36,635
| -65% | -$796K |
|
|
EVBG
3150
DELISTED
Everbridge, Inc. Common Stock
EVBG
| $413K | ﹤0.01% |
2,989
+2,595
| +659% | +$337K |
|
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.