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 | |
|---|---|---|---|---|---|---|
|
SNV
2776
CALL
DELISTED
Synovus
SNV
| $603K | ﹤0.01% |
285
-92
| -24% | -$1.92K |
|
2777
CALL
Amcor
AMCR
$20.6B
| $602K | ﹤0.01% |
109
+92
| +541% | +$5.01K |
|
2778
PUT
Corcept Therapeutics
CORT
$10.2B
| $602K | ﹤0.01% |
346
+113
| +48% | +$1.8K |
|
2779
PUT
Factset
FDS
$9.05B
| $602K | ﹤0.01% |
18
+14
| +350% | +$4.84K |
|
2780
CALL
The Greenbrier Companies
GBX
$1.61B
| $602K | ﹤0.01% |
205
-49
| -19% | -$1.32K |
|
2781
PUT
Murphy USA
MUSA
$11.3B
| $602K | ﹤0.01% |
47
+40
| +571% | +$5.29K |
|
2782
PUT
Penumbra
PEN
$12.5B
| $602K | ﹤0.01% |
31
-48
| -61% | -$10.1K |
|
2783
Synaptics
SYNA
$4.41B
| $602K | ﹤0.01% |
7,486
+7,144
| +2,089% | +$565K |
|
2784
PUT
Monster Beverage
MNST
$91.4B
| $601K | ﹤0.01% |
150
+26
| +21% | +$1.03K |
|
2785
CALL
Intellia Therapeutics
NTLA
$1.5B
| $600K | ﹤0.01% |
302
+232
| +331% | +$4.84K |
|
2786
CALL
Brookfield
BN
$102B
| $597K | ﹤0.01% |
262
-183
| -41% | -$3.27K |
|
|
XLRN
2787
CALL
DELISTED
Acceleron Pharma
XLRN
| $596K | ﹤0.01% |
53
-284
| -84% | -$28.3K |
|
2788
PUT
OraSure Technologies
OSUR
$273M
| $595K | ﹤0.01% |
489
+388
| +384% | +$5.3K |
|
2789
PUT
AGCO
AGCO
$8.78B
| $594K | ﹤0.01% |
80
+70
| +700% | +$4.78K |
|
|
TGNA
2790
PUT
DELISTED
TEGNA Inc
TGNA
| $594K | ﹤0.01% |
506
+251
| +98% | +$2.98K |
|
2791
PUT
Veeco
VECO
$3.15B
| $594K | ﹤0.01% |
509
-115
| -18% | -$1.47K |
|
2792
CALL
Banco Bradesco
BBD
$38.1B
| $593K | ﹤0.01% |
2,095
+1,725
| +466% | +$5.65K |
|
2793
CALL
CarGurus
CARG
$3.01B
| $592K | ﹤0.01% |
274
+102
| +59% | +$2.61K |
|
2794
Moody's
MCO
$81.7B
| $592K | ﹤0.01% |
2,045
-2,268
| -53% | -$647K |
|
|
EGIO
2795
DELISTED
Edgio, Inc. Common Stock
EGIO
| $592K | ﹤0.01% |
2,570
+1,843
| +254% | +$461K |
|
2796
CALL
Crane NXT
CXT
$3.04B
| $591K | ﹤0.01% |
340
+170
| +100% | +$3.36K |
|
2797
Microsoft
MSFT
$2.84T
| $591K | ﹤0.01% |
2,812
-161,536
| -98% | -$33.9M |
|
2798
PUT
abrdn Physical Gold Shares ETF
SGOL
$6.92B
| $589K | ﹤0.01% |
325
+309
| +1,931% | +$5.69K |
|
2799
CALL
CenterPoint Energy
CNP
$29.1B
| $588K | ﹤0.01% |
304
-107
| -26% | -$2.1K |
|
2800
CALL
Village Farms International
VFF
$235M
| $588K | ﹤0.01% |
1,285
+786
| +158% | +$4.32K |
|
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.