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 | |
|---|---|---|---|---|---|---|
276
CALL
Union Pacific
UNP
$174B
| $26.3M | 0.04% |
1,337
-196
| -13% | -$36.4K |
|
277
CALL
Occidental Petroleum
OXY
$57.1B
| $26.3M | 0.04% |
6,734
-8,330
| -55% | -$117K |
|
278
PUT
Accenture
ACN
$85.4B
| $26.2M | 0.04% |
1,161
+292
| +34% | +$66.9K |
|
279
CALL
Applied Materials
AMAT
$444B
| $25.6M | 0.03% |
+4,306
| New | +$266K |
|
|
280
Invesco QQQ Trust
QQQ
$470B
| $25.5M | 0.03% |
91,955
-293,366
| -76% | -$79.6M |
|
281
CALL
Simon Property Group
SPG
$73.5B
| $24.9M | 0.03% |
3,849
+1,069
| +38% | +$70.1K |
|
282
PUT
Workday
WDAY
$33B
| $24.8M | 0.03% |
1,152
+290
| +34% | +$57.4K |
|
283
CALL
Amgen
AMGN
$198B
| $24.4M | 0.03% |
961
-111
| -10% | -$27.5K |
|
284
CALL
3M
MMM
$89.1B
| $24.3M | 0.03% |
1,814
-907
| -33% | -$122K |
|
285
PUT
Clorox
CLX
$11.6B
| $24.3M | 0.03% |
1,154
-294
| -20% | -$65.5K |
|
286
PUT
Okta
OKTA
$24B
| $24.2M | 0.03% |
1,132
-410
| -27% | -$85.5K |
|
287
PUT
Take-Two Interactive
TTWO
$43.5B
| $24.1M | 0.03% |
1,459
+319
| +28% | +$51.8K |
|
288
CALL
Las Vegas Sands
LVS
$30.4B
| $24M | 0.03% |
5,147
+2,150
| +72% | +$103K |
|
289
CALL
Lam Research
LRCX
$401B
| $23.9M | 0.03% |
7,210
+1,430
| +25% | +$49.3K |
|
290
PUT
General Motors
GM
$74.6B
| $23.9M | 0.03% |
8,073
-1,304
| -14% | -$36.6K |
|
|
291
SPDR Gold Trust
GLD
$133B
| $23.8M | 0.03% |
134,301
-531,640
| -80% | -$95.5M |
|
292
PUT
Southwest Airlines
LUV
$23.4B
| $23.8M | 0.03% |
6,342
+828
| +15% | +$29.4K |
|
|
COUP
293
CALL
DELISTED
Coupa Software Incorporated
COUP
| $23.7M | 0.03% |
864
+134
| +18% | +$39.1K |
|
294
PUT
AutoZone
AZO
$48.5B
| $23.7M | 0.03% |
201
+32
| +19% | +$37.8K |
|
|
NKLA
295
CALL
DELISTED
Nikola Corporation Common Stock
NKLA
| $23.6M | 0.03% |
384
+36
| +10% | +$41.9K |
|
296
CALL
Capital One
COF
$124B
| $23.5M | 0.03% |
3,276
+1,784
| +120% | +$119K |
|
297
PUT
Eli Lilly
LLY
$1.04T
| $23.5M | 0.03% |
1,585
-461
| -23% | -$71.3K |
|
298
CALL
Atlassian
TEAM
$21.6B
| $23.3M | 0.03% |
1,282
+701
| +121% | +$125K |
|
299
CALL
Ulta Beauty
ULTA
$20.7B
| $23.2M | 0.03% |
1,035
-432
| -29% | -$92.9K |
|
300
iShares Silver Trust
SLV
$29B
| $23.1M | 0.03% |
1,069,136
+515,583
| +93% | +$11.7M |
|
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.