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 | |
|---|---|---|---|---|---|---|
301
PUT
Oracle
ORCL
$362B
| $23.1M | 0.03% |
3,866
-486
| -11% | -$27.6K |
|
|
SPLK
302
PUT
DELISTED
Splunk Inc
SPLK
| $23M | 0.03% |
1,221
-184
| -13% | -$36.7K |
|
303
AutoZone
AZO
$48.5B
| $22.8M | 0.03% |
19,374
+1,449
| +8% | +$1.71M |
|
304
CALL
Altria Group
MO
$121B
| $22.8M | 0.03% |
5,899
+280
| +5% | +$11.7K |
|
305
PUT
Las Vegas Sands
LVS
$30.4B
| $22.6M | 0.03% |
4,850
+742
| +18% | +$35.5K |
|
306
CALL
General Motors
GM
$74.6B
| $22.6M | 0.03% |
7,628
+1,862
| +32% | +$52.3K |
|
307
PUT
WIX.com
WIX
$2.05B
| $22.4M | 0.03% |
879
+36
| +4% | +$9.93K |
|
308
PUT
Charter Communications
CHTR
$15.9B
| $22.3M | 0.03% |
357
-113
| -24% | -$66.7K |
|
309
CALL
American Tower
AMT
$77.6B
| $22.1M | 0.03% |
916
+34
| +4% | +$8.62K |
|
310
PUT
Intuitive Surgical
ISRG
$121B
| $22.1M | 0.03% |
936
+375
| +67% | +$84.2K |
|
311
PUT
American International
AIG
$41.4B
| $22M | 0.03% |
8,007
+3,272
| +69% | +$97.5K |
|
312
CALL
RH
RH
$3.35B
| $22M | 0.03% |
574
-205
| -26% | -$64.7K |
|
313
Meta Platforms (Facebook)
META
$1.59T
| $21.9M | 0.03% |
83,714
-11,160
| -12% | -$2.88M |
|
314
CALL
Palo Alto Networks
PANW
$274B
| $21.9M | 0.03% |
5,370
+2,010
| +60% | +$83.6K |
|
315
CALL
Workday
WDAY
$33B
| $21.6M | 0.03% |
1,006
-162
| -14% | -$32K |
|
316
CALL
Carvana
CVNA
$45.5B
| $21.5M | 0.03% |
4,830
-825
| -15% | -$29.3K |
|
317
PUT
Enphase Energy
ENPH
$5.28B
| $21.5M | 0.03% |
2,607
-2,767
| -51% | -$185K |
|
318
PUT
VanEck Durable High Dividend ETF
DURA
$38.4M
| $21.5M | 0.03% |
2,296
-1,993
| -46% | -$53.1K |
|
319
CALL
Twilio
TWLO
$27.9B
| $21.5M | 0.03% |
870
-618
| -42% | -$152K |
|
320
PUT
DraftKings
DKNG
$11.4B
| $21.4M | 0.03% |
3,645
+989
| +37% | +$38.5K |
|
321
CALL
Dollar Tree
DLTR
$23.5B
| $21.2M | 0.03% |
2,316
+1,554
| +204% | +$146K |
|
322
PUT
Simon Property Group
SPG
$73.5B
| $21.1M | 0.03% |
3,270
-562
| -15% | -$36.8K |
|
323
PUT
Union Pacific
UNP
$174B
| $21.1M | 0.03% |
1,074
+174
| +19% | +$32.3K |
|
324
CALL
Novavax
NVAX
$1.31B
| $21M | 0.03% |
1,934
+535
| +38% | +$65.2K |
|
325
CALL
CME Group
CME
$90.9B
| $20.9M | 0.03% |
1,252
+94
| +8% | +$15.8K |
|
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.