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 |
Amazon
AMZN
|
+$102M |
| 2 |
TSMC
TSM
|
+$27.8M |
| 3 |
JPMorgan Chase
JPM
|
+$22.4M |
| 4 |
Boeing
BA
|
+$19.4M |
| 5 |
ExxonMobil
XOM
|
+$14.7M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
SPDR Gold Trust
GLD
|
+$95.5M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$79.6M |
| 3 |
Tesla
TSLA
|
+$75.3M |
| 4 |
NVIDIA
NVDA
|
+$51.6M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
+$40.5M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Consumer Discretionary | 0.53% |
| 2 | Technology | 0.4% |
| 3 | Healthcare | 0.22% |
| 4 | Financials | 0.21% |
| 5 | Communication Services | 0.18% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1226
CALL
EPR Properties
EPR
$4.82B
| $2.91M | ﹤0.01% |
1,058
+152
| +17% | +$4.75K |
|
1227
CALL
Jabil
JBL
$33.1B
| $2.91M | ﹤0.01% |
849
+258
| +44% | +$8.63K |
|
1228
PUT
Equifax
EFX
$20.3B
| $2.9M | ﹤0.01% |
185
+97
| +110% | +$15.9K |
|
|
FTCH
1229
PUT
DELISTED
Farfetch Limited Class A Ordinary Shares
FTCH
| $2.9M | ﹤0.01% |
1,153
-535
| -32% | -$13.3K |
|
1230
CALL
Liberty Global Class C
LBTYK
$3.2B
| $2.9M | ﹤0.01% |
1,407
-553
| -28% | -$12.2K |
|
|
AUY
1231
CALL
DELISTED
Yamana Gold, Inc.
AUY
| $2.9M | ﹤0.01% |
5,102
+1,731
| +51% | +$10.4K |
|
1232
Adobe
ADBE
$88.8B
| $2.89M | ﹤0.01% |
+5,896
| New | +$2.74M |
|
1233
PUT
State Street
STT
$51B
| $2.89M | ﹤0.01% |
487
+169
| +53% | +$11K |
|
1234
PUT
Edison International
EIX
$30.7B
| $2.89M | ﹤0.01% |
568
-297
| -34% | -$15.8K |
|
|
FSR
1235
CALL
DELISTED
Fisker Inc.
FSR
| $2.88M | ﹤0.01% |
+2,001
| New | +$27.3K |
|
1236
CALL
Wingstop
WING
$3.84B
| $2.88M | ﹤0.01% |
211
-92
| -30% | -$13.5K |
|
1237
PUT
Wendy's
WEN
$1.37B
| $2.88M | ﹤0.01% |
1,293
+436
| +51% | +$9.61K |
|
|
CLR
1238
PUT
DELISTED
CONTINENTAL RESOURCES INC.
CLR
| $2.88M | ﹤0.01% |
2,347
-657
| -22% | -$10.7K |
|
1239
CALL
CRISPR Therapeutics
CRSP
$4.61B
| $2.88M | ﹤0.01% |
344
-159
| -32% | -$14.1K |
|
|
ALBO
1240
PUT
DELISTED
Albireo Pharma Inc
ALBO
| $2.87M | ﹤0.01% |
859
+820
| +2,103% | +$23.9K |
|
1241
PUT
FIVE9
FIVN
$1.77B
| $2.87M | ﹤0.01% |
221
-172
| -44% | -$20.7K |
|
1242
CALL
Western Union
WU
$2.56B
| $2.87M | ﹤0.01% |
1,337
-279
| -17% | -$6.33K |
|
1243
Occidental Petroleum
OXY
$56.7B
| $2.86M | ﹤0.01% |
+286,122
| New | +$4.03M |
|
1244
PUT
Bread Financial
BFH
$4.16B
| $2.86M | ﹤0.01% |
855
+147
| +21% | +$5.22K |
|
1245
CALL
HubSpot
HUBS
$10.2B
| $2.86M | ﹤0.01% |
98
-29
| -23% | -$7.6K |
|
1246
PUT
Nice
NICE
$5.28B
| $2.86M | ﹤0.01% |
126
+121
| +2,420% | +$25.7K |
|
1247
CALL
Labcorp
LH
$24.3B
| $2.84M | ﹤0.01% |
176
-341
| -66% | -$54K |
|
1248
PUT
Neurocrine Biosciences
NBIX
$17.8B
| $2.84M | ﹤0.01% |
295
+185
| +168% | +$21.4K |
|
|
ZNGA
1249
CALL
DELISTED
ZYNGA INC. CL A COMMON
ZNGA
| $2.84M | ﹤0.01% |
3,110
+375
| +14% | +$3.49K |
|
1250
CALL
Lumen
LUMN
$6.72B
| $2.83M | ﹤0.01% |
2,809
-476
| -14% | -$4.95K |
|
Similar funds
Simplex Trading's Q3 2020 Portfolio in Review
As of Q3 2020, Simplex Trading held 9,056 positions worth $73.5B, up 17% from $62.7B the previous quarter. Its ten largest holdings account for 43% of the portfolio.
Simplex Trading's Q3 2020 filing shows 1,403 new, 3,135 increased, 3,122 reduced and 1,191 closed positions. Its largest new stake was Goldman Sachs: 60,397 shares worth $12.1M. The largest sale was SPDR Gold Trust, an estimated $95.5M.
By sector, the portfolio is most concentrated in Consumer Discretionary at 0.53% of assets, up from 0.47% a quarter earlier, followed by Technology and Healthcare.
- Simplex Trading's largest Q3 2020 buy was Goldman Sachs: 60,397 shares worth $12.1M.
- Simplex Trading added most to Amazon in Q3 2020, an estimated $102M increase.
- Simplex Trading's biggest Q3 2020 reduction was SPDR Gold Trust, cutting an estimated $95.5M.
- Simplex Trading fully exited iShares MSCI EAFE ETF in Q3 2020, selling an estimated $40.5M.
- Simplex Trading's ten largest holdings make up 43% of its $73.5B portfolio in Q3 2020.
- Simplex Trading opened 1,403 new positions and closed 1,191 in Q3 2020.
- Simplex Trading's portfolio value rose 17% quarter-over-quarter to $73.5B.
Based on Simplex Trading's 13F filing for Q3 2020, filed 14 Oct 2020.