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 | |
|---|---|---|---|---|---|---|
2201
PUT
Movado Group
MOV
$812M
| $1.03M | ﹤0.01% |
1,040
+681
| +190% | +$7.29K |
|
2202
abrdn Physical Gold Shares ETF
SGOL
$6.92B
| $1.03M | ﹤0.01% |
56,885
+36,888
| +184% | +$679K |
|
|
DM
2203
PUT
DELISTED
Desktop Metal, Inc.
DM
| $1.03M | ﹤0.01% |
+96
| New | +$10.4K |
|
2204
CALL
Zumiez
ZUMZ
$320M
| $1.03M | ﹤0.01% |
370
+359
| +3,264% | +$9.39K |
|
2205
CALL
Warner Music
WMG
$13.8B
| $1.03M | ﹤0.01% |
358
+149
| +71% | +$4.34K |
|
2206
State Street Materials Select Sector SPDR ETF
XLB
$8.51B
| $1.03M | ﹤0.01% |
32,282
-138,910
| -81% | -$4.32M |
|
2207
CALL
Omeros
OMER
$709M
| $1.02M | ﹤0.01% |
1,013
+720
| +246% | +$9.27K |
|
|
AMRN
2208
Amarin Corp
AMRN
$284M
| $1.02M | ﹤0.01% |
12,128
+1,644
| +16% | +$197K |
|
|
CODX
2209
PUT
Co-Diagnostics
CODX
$7.74M
| $1.02M | ﹤0.01% |
25
+8
| +47% | +$4.11K |
|
2210
CALL
Unilever
UL
$131B
| $1.02M | ﹤0.01% |
147
-556
| -79% | -$37.1K |
|
2211
Diamondback Energy
FANG
$57.6B
| $1.02M | ﹤0.01% |
33,758
+23,603
| +232% | +$899K |
|
2212
CALL
CGI
GIB
$13.9B
| $1.02M | ﹤0.01% |
150
+143
| +2,043% | +$9.74K |
|
|
GAN
2213
CALL
DELISTED
GAN Ltd
GAN
| $1.01M | ﹤0.01% |
601
+418
| +228% | +$8.86K |
|
2214
PUT
NovaGold Resources
NG
$2.6B
| $1.01M | ﹤0.01% |
854
-40
| -4% | -$390 |
|
2215
PUT
Schwab US Broad Market ETF
SCHB
$42.8B
| $1.01M | ﹤0.01% |
1,050
-18
| -2% | -$237 |
|
2216
PUT
Xcel Energy
XEL
$51B
| $1.01M | ﹤0.01% |
147
-182
| -55% | -$12.4K |
|
2217
PUT
Air Products & Chemicals
APD
$66.3B
| $1.01M | ﹤0.01% |
34
-694
| -95% | -$200K |
|
2218
CALL
Goodyear
GT
$2.07B
| $1.01M | ﹤0.01% |
1,320
+380
| +40% | +$3.52K |
|
2219
CALL
WisdomTree US Total Dividend Fund
DTD
$1.65B
| $1.01M | ﹤0.01% |
764
+456
| +148% | +$21.4K |
|
2220
PUT
GoDaddy
GDDY
$12.3B
| $1.01M | ﹤0.01% |
133
+12
| +10% | +$905 |
|
2221
PUT
AerCap
AER
$23.9B
| $1.01M | ﹤0.01% |
400
-339
| -46% | -$9.82K |
|
2222
Cintas
CTAS
$82.4B
| $1.01M | ﹤0.01% |
12,112
-13,492
| -53% | -$1.04M |
|
|
DRNA
2223
PUT
DELISTED
Dicerna Pharmaceuticals, Inc.
DRNA
| $1.01M | ﹤0.01% |
560
+559
| +55,900% | +$11.6K |
|
|
SRG
2224
PUT
Seritage Growth Properties
SRG
$130M
| $1M | ﹤0.01% |
747
-66
| -8% | -$808 |
|
2225
ProShares Ultra Silver
AGQ
$1.16B
| $1M | ﹤0.01% |
24,026
-4,395
| -15% | -$218K |
|
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.