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 | |
|---|---|---|---|---|---|---|
2101
PUT
Editas Medicine
EDIT
$399M
| $1.13M | ﹤0.01% |
404
-1
| -0.2% | -$33 |
|
2102
CALL
Louisiana-Pacific
LPX
$5.2B
| $1.13M | ﹤0.01% |
384
+242
| +170% | +$7.43K |
|
2103
CALL
NovaGold Resources
NG
$2.6B
| $1.13M | ﹤0.01% |
952
+468
| +97% | +$4.56K |
|
2104
PUT
ZTO Express
ZTO
$18.2B
| $1.13M | ﹤0.01% |
378
+30
| +9% | +$1.02K |
|
2105
PUT
Sunoco
SUN
$14.2B
| $1.13M | ﹤0.01% |
463
+49
| +12% | +$1.23K |
|
2106
Estee Lauder
EL
$29B
| $1.13M | ﹤0.01% |
+5,160
| New | +$1.06M |
|
2107
Sonos
SONO
$1.75B
| $1.13M | ﹤0.01% |
74,204
-55,353
| -43% | -$815K |
|
2108
CALL
Brighthouse Financial
BHF
$3.63B
| $1.12M | ﹤0.01% |
418
-351
| -46% | -$10.2K |
|
|
WW
2109
CALL
DELISTED
WW International
WW
| $1.12M | ﹤0.01% |
596
-253
| -30% | -$5.96K |
|
2110
PUT
Valvoline
VVV
$4.97B
| $1.12M | ﹤0.01% |
590
+69
| +13% | +$1.43K |
|
|
KYNB
2111
CALL
Kyntra Bio
KYNB
$28.5M
| $1.12M | ﹤0.01% |
11
+6
| +120% | +$6.46K |
|
|
SPWR
2112
CALL
DELISTED
SunPower Corporation Common Stock
SPWR
| $1.12M | ﹤0.01% |
1,847
-547
| -23% | -$4.61K |
|
2113
CALL
HEICO Corp Class A
HEI.A
$35.4B
| $1.12M | ﹤0.01% |
107
+25
| +30% | +$2.11K |
|
2114
CALL
Monro
MNRO
$525M
| $1.12M | ﹤0.01% |
276
+105
| +61% | +$5.36K |
|
|
PTR
2115
PUT
DELISTED
PETROCHINA COMPANY LIMITED ADS (REP 100 H SHARES)
PTR
| $1.12M | ﹤0.01% |
380
-141
| -27% | -$4.82K |
|
|
GES
2116
PUT
DELISTED
Guess Inc
GES
| $1.12M | ﹤0.01% |
962
+603
| +168% | +$6.94K |
|
2117
CALL
Melco Resorts & Entertainment
MLCO
$2.1B
| $1.12M | ﹤0.01% |
671
-51
| -7% | -$904 |
|
2118
AXIS Capital
AXS
$8.59B
| $1.12M | ﹤0.01% |
25,362
+17,011
| +204% | +$741K |
|
2119
PUT
Compañía de Minas Buenaventura
BVN
$7.85B
| $1.11M | ﹤0.01% |
912
+854
| +1,472% | +$10.2K |
|
2120
PUT
Mid-America Apartment Communities
MAA
$15.6B
| $1.11M | ﹤0.01% |
96
-121
| -56% | -$13.9K |
|
|
UFS
2121
CALL
DELISTED
DOMTAR CORPORATION (New)
UFS
| $1.11M | ﹤0.01% |
423
+368
| +669% | +$9.32K |
|
|
OTRK
2122
CALL
DELISTED
Ontrak
OTRK
| $1.11M | ﹤0.01% |
2
+1
| +100% | +$4.63K |
|
2123
CALL
Tenaris
TS
$29.1B
| $1.11M | ﹤0.01% |
1,127
-275
| -20% | -$3.25K |
|
2124
PUT
Floor & Decor
FND
$5.81B
| $1.11M | ﹤0.01% |
148
+43
| +41% | +$2.95K |
|
2125
CALL
Wabtec
WAB
$51.1B
| $1.11M | ﹤0.01% |
179
+91
| +103% | +$5.84K |
|
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.