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 | Miscellaneous | 97.95% |
| 2 | Consumer Discretionary | 0.55% |
| 3 | Technology | 0.41% |
| 4 | Healthcare | 0.23% |
| 5 | Financials | 0.21% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1101
CALL
10x Genomics
TXG
$8.16B
| $3.47M | ﹤0.01% |
278
-12
| -4% | -$1.26K |
|
1102
CALL
Revvity
RVTY
$14.5B
| $3.46M | ﹤0.01% |
276
+52
| +23% | +$5.98K |
|
1103
CALL
Tyson Foods
TSN
$18.1B
| $3.46M | ﹤0.01% |
581
-2,199
| -79% | -$136K |
|
1104
Ferrari
RACE
$72.1B
| $3.45M | ﹤0.01% |
18,753
+4,751
| +34% | +$884K |
|
1105
PUT
Intercontinental Exchange
ICE
$90.5B
| $3.45M | ﹤0.01% |
345
+160
| +86% | +$15.8K |
|
1106
CALL
Knight Transportation
KNX
$11.7B
| $3.45M | ﹤0.01% |
848
+219
| +35% | +$9.62K |
|
1107
iShares Core S&P Small-Cap ETF
IJR
$110B
| $3.44M | ﹤0.01% |
49,036
+45,405
| +1,250% | +$3.25M |
|
1108
PUT
FirstEnergy
FE
$27.1B
| $3.44M | ﹤0.01% |
1,199
+889
| +287% | +$27.9K |
|
1109
PUT
W.P. Carey
WPC
$16B
| $3.44M | ﹤0.01% |
539
-179
| -25% | -$12.1K |
|
1110
PUT
The Mosaic Company
MOS
$8.22B
| $3.42M | ﹤0.01% |
1,872
-503
| -21% | -$8.19K |
|
1111
ProShares Ultra S&P500
SSO
$9.11B
| $3.42M | ﹤0.01% |
186,248
+99,120
| +114% | +$1.78M |
|
1112
PUT
GameStop
GME
$8.6B
| $3.41M | ﹤0.01% |
13,388
+3,244
| +32% | +$4.69K |
|
1113
PUT
National Beverage
FIZZ
$3.02B
| $3.41M | ﹤0.01% |
1,002
+536
| +115% | +$18.8K |
|
1114
CALL
Lumentum
LITE
$79B
| $3.4M | ﹤0.01% |
453
+107
| +31% | +$8.87K |
|
1115
CALL
Danaher
DHR
$146B
| $3.4M | ﹤0.01% |
178
-248
| -58% | -$44.1K |
|
1116
CALL
Macy's
M
$6.06B
| $3.4M | ﹤0.01% |
5,962
-4,117
| -41% | -$27.4K |
|
|
GRMN
1117
PUT
Garmin
GRMN
$53.4B
| $3.4M | ﹤0.01% |
358
+135
| +61% | +$13.5K |
|
1118
iShares Select Dividend ETF
DVY
$23.9B
| $3.38M | ﹤0.01% |
41,471
+40,668
| +5,065% | +$3.39M |
|
|
PSTH
1119
PUT
DELISTED
Pershing Square Tontine Holdings, Ltd.
PSTH
| $3.38M | ﹤0.01% |
+1,527
| New | +$34.3K |
|
1120
CALL
WEX
WEX
$6.61B
| $3.38M | ﹤0.01% |
243
-9
| -4% | -$1.41K |
|
|
INFO
1121
CALL
DELISTED
IHS Markit Ltd. Common Shares
INFO
| $3.38M | ﹤0.01% |
430
-121
| -22% | -$9.64K |
|
|
ATH
1122
CALL
DELISTED
Athene Holding Ltd. Class A Common Shares
ATH
| $3.37M | ﹤0.01% |
990
+599
| +153% | +$20.6K |
|
1123
PUT
HubSpot
HUBS
$12.3B
| $3.36M | ﹤0.01% |
115
-103
| -47% | -$27K |
|
1124
ProShares UltraPro S&P 500
UPRO
$5.57B
| $3.36M | ﹤0.01% |
120,170
-200,446
| -63% | -$5.47M |
|
|
FTCH
1125
CALL
DELISTED
Farfetch Limited Class A Ordinary Shares
FTCH
| $3.35M | ﹤0.01% |
1,332
+192
| +17% | +$4.76K |
|
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 1,402 new, 3,135 increased, 3,121 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 Miscellaneous at 98% of assets, up from 98% a quarter earlier, followed by Consumer Discretionary and Technology.
- 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 1,402 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.