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 | |
|---|---|---|---|---|---|---|
2276
CALL
Rackspace Technology
RXT
$1B
| $952K | ﹤0.01% |
+494
| New | +$9.04K |
|
|
AZUL
2277
CALL
DELISTED
Azul
AZUL
| $950K | ﹤0.01% |
722
-1,019
| -59% | -$13.1K |
|
2278
CALL
Takeda Pharmaceutical
TAK
$55.1B
| $950K | ﹤0.01% |
533
+114
| +27% | +$2.08K |
|
2279
PUT
Invesco CurrencyShares Australian Dollar Trust
FXA
$96.8M
| $949K | ﹤0.01% |
133
-527
| -80% | -$37.6K |
|
2280
State Street Energy Select Sector SPDR ETF
XLE
$39.5B
| $948K | ﹤0.01% |
63,310
-560,344
| -90% | -$9.95M |
|
2281
PUT
Children's Place
PLCE
$53.6M
| $946K | ﹤0.01% |
334
+103
| +45% | +$2.83K |
|
|
MRTX
2282
PUT
DELISTED
Mirati Therapeutics, Inc. Common Stock
MRTX
| $946K | ﹤0.01% |
57
-145
| -72% | -$19.8K |
|
2283
Albemarle
ALB
$13.5B
| $945K | ﹤0.01% |
+10,590
| New | +$938K |
|
2284
Roundhill Sports Betting & iGaming ETF
BETZ
$49.7M
| $945K | ﹤0.01% |
44,067
+42,371
| +2,498% | +$766K |
|
2285
PUT
Gold Fields
GFI
$29.2B
| $945K | ﹤0.01% |
769
+63
| +9% | +$774 |
|
2286
PUT
Vanguard ESG US Corporate Bond ETF
VCEB
$1.18B
| $945K | ﹤0.01% |
+51
| New | +$3.81K |
|
|
QIWI
2287
DELISTED
QIWI PLC
QIWI
| $945K | ﹤0.01% |
54,502
+31,093
| +133% | +$561K |
|
2288
CALL
First Horizon
FHN
$12.1B
| $944K | ﹤0.01% |
1,002
+247
| +33% | +$2.32K |
|
2289
CALL
Canadian Pacific Kansas City
CP
$82B
| $943K | ﹤0.01% |
155
+20
| +15% | +$1.14K |
|
2290
Welltower
WELL
$178B
| $943K | ﹤0.01% |
17,126
-17,155
| -50% | -$942K |
|
2291
PUT
Dillards
DDS
$8.87B
| $942K | ﹤0.01% |
258
-45
| -15% | -$1.26K |
|
2292
Dynatrace
DT
$12.1B
| $942K | ﹤0.01% |
22,982
+17,791
| +343% | +$728K |
|
2293
CALL
Ares Capital
ARCC
$13.5B
| $938K | ﹤0.01% |
673
-474
| -41% | -$6.74K |
|
2294
Kimco Realty
KIM
$17.6B
| $937K | ﹤0.01% |
83,235
+63,010
| +312% | +$744K |
|
2295
CALL
Rambus
RMBS
$10.4B
| $937K | ﹤0.01% |
685
-440
| -39% | -$6.25K |
|
2296
Revvity
RVTY
$12.3B
| $937K | ﹤0.01% |
+7,471
| New | +$859K |
|
|
MRNS
2297
PUT
DELISTED
Marinus Pharmaceuticals, Inc
MRNS
| $937K | ﹤0.01% |
730
+711
| +3,742% | +$6.14K |
|
2298
PUT
Canadian Natural Resources
CNQ
$96.9B
| $936K | ﹤0.01% |
1,195
-710
| -37% | -$6.39K |
|
2299
iShares MSCI Japan ETF
EWJ
$21.7B
| $936K | ﹤0.01% |
15,851
-21,886
| -58% | -$1.25M |
|
|
HOME
2300
PUT
DELISTED
At Home Group Inc.
HOME
| $936K | ﹤0.01% |
630
+433
| +220% | +$5.72K |
|
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.