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 | |
|---|---|---|---|---|---|---|
2326
Invesco CurrencyShares Canadian Dollar Trust
FXC
$69.2M
| $913K | ﹤0.01% |
12,352
-27,022
| -69% | -$2M |
|
2327
USA Compression Partners
USAC
$3.82B
| $913K | ﹤0.01% |
91,222
+91,022
| +45,511% | +$1.03M |
|
|
CBPO
2328
CALL
DELISTED
China Biologic Products Holdings, Inc.
CBPO
| $911K | ﹤0.01% |
82
+35
| +74% | +$3.76K |
|
2329
PUT
Alamos Gold
AGI
$12.4B
| $910K | ﹤0.01% |
1,033
-170
| -14% | -$1.71K |
|
2330
PUT
Generac Holdings
GNRC
$11.9B
| $910K | ﹤0.01% |
47
-260
| -85% | -$42.8K |
|
2331
PUT
PetMed Express
PETS
$42.5M
| $910K | ﹤0.01% |
288
-222
| -44% | -$7.35K |
|
2332
CALL
Herbalife
HLF
$1.23B
| $909K | ﹤0.01% |
195
-173
| -47% | -$8.49K |
|
2333
PUT
Verisk Analytics
VRSK
$26.4B
| $908K | ﹤0.01% |
49
-25
| -34% | -$4.58K |
|
2334
PUT
XPeng
XPEV
$11.8B
| $907K | ﹤0.01% |
+452
| New | +$8.84K |
|
2335
Chegg
CHGG
$108M
| $905K | ﹤0.01% |
12,673
+2,337
| +23% | +$172K |
|
2336
PUT
Teradata
TDC
$2.68B
| $905K | ﹤0.01% |
399
+22
| +6% | +$489 |
|
2337
PUT
Manulife Financial
MFC
$72.6B
| $904K | ﹤0.01% |
650
+366
| +129% | +$5.24K |
|
2338
CALL
Tradeweb Markets
TW
$21.3B
| $904K | ﹤0.01% |
156
+56
| +56% | +$3.08K |
|
|
VG
2339
DELISTED
Vonage Holdings Corporation
VG
| $904K | ﹤0.01% |
88,375
+78,039
| +755% | +$866K |
|
2340
CALL
Hubbell
HUBB
$25.7B
| $903K | ﹤0.01% |
+66
| New | +$9.09K |
|
|
AMAG
2341
CALL
DELISTED
AMAG Pharmaceuticals
AMAG
| $903K | ﹤0.01% |
961
+676
| +237% | +$6.42K |
|
2342
PUT
Range Resources
RRC
$9.11B
| $902K | ﹤0.01% |
1,363
+750
| +122% | +$5.43K |
|
2343
CALL
Fabrinet
FN
$17.1B
| $901K | ﹤0.01% |
143
+62
| +77% | +$4.17K |
|
2344
PUT
WEC Energy
WEC
$37.7B
| $901K | ﹤0.01% |
93
-95
| -51% | -$8.85K |
|
2345
CALL
Abercrombie & Fitch
ANF
$4.17B
| $899K | ﹤0.01% |
646
+43
| +7% | +$502 |
|
2346
PUT
Comstock Resources
CRK
$3.97B
| $899K | ﹤0.01% |
2,054
+94
| +5% | +$498 |
|
2347
Lumen
LUMN
$6.53B
| $896K | ﹤0.01% |
+88,897
| New | +$924K |
|
|
2348
XPeng
XPEV
$11.8B
| $896K | ﹤0.01% |
+44,670
| New | +$873K |
|
|
STOR
2349
PUT
DELISTED
STORE Capital Corporation
STOR
| $896K | ﹤0.01% |
327
+168
| +106% | +$4.27K |
|
|
SWCH
2350
CALL
DELISTED
Switch, Inc. Class A Common Stock
SWCH
| $896K | ﹤0.01% |
574
+219
| +62% | +$3.73K |
|
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.