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 | |
|---|---|---|---|---|---|---|
1401
CALL
Republic Services
RSG
$66.7B
| $2.33M | ﹤0.01% |
250
+114
| +84% | +$10.2K |
|
1402
CALL
Zions Bancorporation
ZION
$10.1B
| $2.33M | ﹤0.01% |
798
+639
| +402% | +$20.6K |
|
1403
PUT
Zoetis
ZTS
$31.6B
| $2.33M | ﹤0.01% |
141
-468
| -77% | -$71.9K |
|
1404
PUT
BJ's Restaurants
BJRI
$1.41B
| $2.33M | ﹤0.01% |
791
+148
| +23% | +$3.81K |
|
|
MOMO
1405
CALL
Hello Group
MOMO
$869M
| $2.33M | ﹤0.01% |
1,690
-135
| -7% | -$2.46K |
|
1406
Direxion Daily Gold Miners Index Bull 2X ETF
NUGT
$863M
| $2.32M | ﹤0.01% |
27,406
-41,723
| -60% | -$3.94M |
|
|
JWN
1407
CALL
DELISTED
Nordstrom
JWN
| $2.32M | ﹤0.01% |
1,946
-553
| -22% | -$8.29K |
|
1408
CALL
Cheniere Energy
LNG
$56.5B
| $2.32M | ﹤0.01% |
501
+127
| +34% | +$6.44K |
|
|
MAXR
1409
CALL
DELISTED
Maxar Technologies Inc. Common Stock
MAXR
| $2.32M | ﹤0.01% |
929
-373
| -29% | -$8.26K |
|
1410
Enphase Energy
ENPH
$4.84B
| $2.31M | ﹤0.01% |
28,023
-82,283
| -75% | -$5.51M |
|
1411
PUT
VeriSign
VRSN
$25.5B
| $2.31M | ﹤0.01% |
113
-162
| -59% | -$33.5K |
|
|
JOYY
1412
CALL
JOYY Inc
JOYY
$3.73B
| $2.31M | ﹤0.01% |
286
-384
| -57% | -$31.5K |
|
1413
CALL
Owens Corning
OC
$11.5B
| $2.31M | ﹤0.01% |
335
+224
| +202% | +$14.4K |
|
|
RP
1414
PUT
DELISTED
RealPage, Inc.
RP
| $2.31M | ﹤0.01% |
400
-241
| -38% | -$14.9K |
|
1415
Viatris
VTRS
$20.1B
| $2.3M | ﹤0.01% |
155,114
+129,788
| +512% | +$2.07M |
|
1416
CALL
BioNTech
BNTX
$22.6B
| $2.3M | ﹤0.01% |
332
+252
| +315% | +$18.1K |
|
|
GRMN
1417
CALL
Garmin
GRMN
$46.9B
| $2.29M | ﹤0.01% |
242
-269
| -53% | -$26.9K |
|
|
BZUN
1418
CALL
Baozun
BZUN
$144M
| $2.29M | ﹤0.01% |
706
-108
| -13% | -$4.29K |
|
1419
PUT
Energy Transfer Partners
ET
$70.1B
| $2.29M | ﹤0.01% |
4,229
+541
| +15% | +$3.43K |
|
1420
Simon Property Group
SPG
$74.5B
| $2.29M | ﹤0.01% |
+35,421
| New | +$2.32M |
|
1421
CALL
Parker-Hannifin
PH
$125B
| $2.29M | ﹤0.01% |
113
-2
| -2% | -$393 |
|
1422
WIX.com
WIX
$2.15B
| $2.28M | ﹤0.01% |
+8,961
| New | +$2.47M |
|
1423
PUT
PagerDuty
PD
$700M
| $2.28M | ﹤0.01% |
842
+141
| +20% | +$3.96K |
|
1424
CALL
Bread Financial
BFH
$4.21B
| $2.28M | ﹤0.01% |
680
+234
| +52% | +$8.32K |
|
1425
Vanguard Dividend Appreciation ETF
VIG
$111B
| $2.27M | ﹤0.01% |
17,673
+5,442
| +44% | +$685K |
|
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.