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 | |
|---|---|---|---|---|---|---|
1101
CALL
Teck Resources
TECK
$29.4B
| $3.39M | 0.01% |
3,255
+712
| +28% | +$6.54K |
|
1102
Madrigal Pharmaceuticals
MDGL
$12.5B
| $3.39M | 0.01% |
29,936
+4,637
| +18% | +$456K |
|
1103
CALL
Kinross Gold
KGC
$28.3B
| $3.38M | 0.01% |
4,679
+2,685
| +135% | +$17.4K |
|
1104
PUT
XPO
XPO
$25.1B
| $3.38M | 0.01% |
1,264
+373
| +42% | +$8.93K |
|
|
LHCG
1105
PUT
DELISTED
LHC Group LLC
LHCG
| $3.36M | 0.01% |
193
+105
| +119% | +$15.4K |
|
1106
L3Harris
LHX
$55.8B
| $3.36M | 0.01% |
19,808
+9,235
| +87% | +$1.74M |
|
1107
PUT
CarMax
KMX
$8.29B
| $3.36M | 0.01% |
375
-29
| -7% | -$2.27K |
|
1108
PUT
Oneok
OKE
$58.7B
| $3.35M | 0.01% |
1,009
+453
| +81% | +$14.8K |
|
1109
PUT
Enterprise Products Partners
EPD
$83.9B
| $3.35M | 0.01% |
1,844
-404
| -18% | -$7.22K |
|
|
CMA
1110
CALL
DELISTED
Comerica
CMA
| $3.35M | 0.01% |
879
+578
| +192% | +$20.2K |
|
1111
CALL
American Electric Power
AEP
$73.4B
| $3.34M | 0.01% |
420
-217
| -34% | -$17.7K |
|
1112
CALL
Box
BOX
$3.92B
| $3.34M | 0.01% |
1,611
+616
| +62% | +$10.8K |
|
1113
CALL
State Street SPDR Portfolio Europe ETF
SPEU
$707M
| $3.34M | 0.01% |
943
+306
| +48% | +$8.99K |
|
1114
PUT
Devon Energy
DVN
$52.2B
| $3.34M | 0.01% |
2,942
+1,787
| +155% | +$20.4K |
|
1115
CALL
Viatris
VTRS
$20.1B
| $3.34M | 0.01% |
2,075
-257
| -11% | -$4.17K |
|
1116
PUT
Hershey
HSY
$34.9B
| $3.33M | 0.01% |
257
-24
| -9% | -$3.23K |
|
1117
CALL
Plug Power
PLUG
$3.06B
| $3.31M | 0.01% |
4,037
+1,161
| +40% | +$5.43K |
|
1118
MongoDB
MDB
$24.1B
| $3.31M | 0.01% |
14,622
-5,388
| -27% | -$998K |
|
1119
CALL
Realty Income
O
$60.4B
| $3.3M | 0.01% |
573
+81
| +16% | +$4.31K |
|
1120
CALL
Lumen
LUMN
$6.73B
| $3.29M | 0.01% |
3,285
+740
| +29% | +$7.4K |
|
1121
PUT
Yeti Holdings
YETI
$3.8B
| $3.29M | 0.01% |
769
-288
| -27% | -$8.65K |
|
|
UN
1122
PUT
DELISTED
Unilever NV New York Registry Shares
UN
| $3.28M | 0.01% |
616
+119
| +24% | +$6.05K |
|
1123
Darden Restaurants
DRI
$22.2B
| $3.27M | 0.01% |
43,213
+520
| +1% | +$36.9K |
|
|
SMAR
1124
CALL
DELISTED
Smartsheet Inc.
SMAR
| $3.27M | 0.01% |
643
+230
| +56% | +$11.7K |
|
1125
PUT
UBS Group
UBS
$169B
| $3.27M | 0.01% |
2,835
-2,031
| -42% | -$20.9K |
|
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.