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 |
Invesco QQQ Trust
QQQ
|
+$77.3M |
| 2 |
SPDR Gold Trust
GLD
|
+$73.2M |
| 3 |
iShares MSCI EAFE ETF
EFA
|
+$38.5M |
| 4 |
Netflix
NFLX
|
+$38.4M |
| 5 |
NVIDIA
NVDA
|
+$36.3M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$55.9M |
| 2 |
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
|
+$28.3M |
| 3 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$23.1M |
| 4 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$23.1M |
| 5 |
Adobe
ADBE
|
+$22M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.49% |
| 2 | Consumer Discretionary | 0.47% |
| 3 | Communication Services | 0.34% |
| 4 | Healthcare | 0.26% |
| 5 | Financials | 0.23% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
376
CALL
Freeport-McMoran
FCX
$93.4B
| $15M | 0.02% |
12,973
+3,195
| +33% | +$29.3K |
|
377
PUT
Chewy
CHWY
$8.81B
| $15M | 0.02% |
3,358
+724
| +27% | +$31.6K |
|
378
PUT
Crown Castle
CCI
$33.8B
| $14.9M | 0.02% |
891
+386
| +76% | +$62.2K |
|
379
United States Oil Fund
USO
$2.36B
| $14.9M | 0.02% |
530,080
+446,818
| +537% | +$12.2M |
|
380
PUT
American International
AIG
$41.5B
| $14.8M | 0.02% |
4,735
+2,728
| +136% | +$76.6K |
|
381
CALL
Autodesk
ADSK
$43B
| $14.7M | 0.02% |
616
-179
| -23% | -$35.2K |
|
382
CALL
SLB Ltd
SLB
$71.3B
| $14.7M | 0.02% |
8,011
-650
| -8% | -$11.4K |
|
383
PUT
SolarEdge
SEDG
$2.91B
| $14.7M | 0.02% |
1,058
+604
| +133% | +$73.9K |
|
384
CALL
ProShares Ultra Bloomberg Natural Gas
BOIL
$422M
| $14.6M | 0.02% |
+26
| New | +$209K |
|
385
CALL
General Motors
GM
$74.1B
| $14.6M | 0.02% |
5,766
+15
| +0.3% | +$365 |
|
386
CALL
NextEra Energy
NEE
$186B
| $14.4M | 0.02% |
2,404
-2,212
| -48% | -$132K |
|
387
CALL
Colgate-Palmolive
CL
$73.3B
| $14.3M | 0.02% |
1,956
-405
| -17% | -$28.8K |
|
388
CALL
Novartis
NVS
$292B
| $14.3M | 0.02% |
1,649
+450
| +38% | +$38.8K |
|
389
CALL
Electronic Arts
EA
$52.4B
| $14.2M | 0.02% |
1,078
+622
| +136% | +$73.5K |
|
390
PUT
QuidelOrtho
QDEL
$1.14B
| $14.2M | 0.02% |
636
+542
| +577% | +$84.9K |
|
391
PUT
PENN Entertainment
PENN
$2.8B
| $14.2M | 0.02% |
4,643
+3,113
| +203% | +$71.3K |
|
392
Alphabet (Google) Class A
GOOGL
$4.17T
| $14.1M | 0.02% |
+199,220
| New | +$13.4M |
|
|
393
CALL
Crown Castle
CCI
$33.8B
| $14M | 0.02% |
839
+156
| +23% | +$25.1K |
|
394
PUT
Boston Scientific
BSX
$63.9B
| $14M | 0.02% |
3,995
+1,923
| +93% | +$69.3K |
|
395
PUT
Intuit
INTU
$77.8B
| $14M | 0.02% |
473
-743
| -61% | -$204K |
|
396
CALL
GE Aerospace
GE
$354B
| $13.9M | 0.02% |
4,092
-1,382
| -25% | -$46.6K |
|
397
Pfizer
PFE
$141B
| $13.9M | 0.02% |
+448,297
| New | +$15.2M |
|
398
Berkshire Hathaway Class B
BRK.B
$1.06T
| $13.9M | 0.02% |
77,667
+77,167
| +15,433% | +$14.1M |
|
399
CALL
Etsy
ETSY
$7.64B
| $13.9M | 0.02% |
1,304
+543
| +71% | +$40.2K |
|
400
CALL
Philip Morris
PM
$303B
| $13.8M | 0.02% |
1,969
-55
| -3% | -$4.01K |
|
Similar funds
Simplex Trading's Q2 2020 Portfolio in Review
As of Q2 2020, Simplex Trading held 8,917 positions worth $62.7B, up 11% from $56.7B the previous quarter. Its ten largest holdings account for 44% of the portfolio.
Simplex Trading's Q2 2020 filing shows 1,290 new, 3,427 increased, 2,723 reduced and 1,278 closed positions. Its largest new stake was iShares MSCI EAFE ETF: 665,841 shares worth $40.5M. The largest sale was Apple, an estimated $55.9M.
By sector, the portfolio is most concentrated in Technology at 0.49% of assets, up from 0.49% a quarter earlier, followed by Consumer Discretionary and Communication Services.
- Simplex Trading's largest Q2 2020 buy was iShares MSCI EAFE ETF: 665,841 shares worth $40.5M.
- Simplex Trading added most to Invesco QQQ Trust in Q2 2020, an estimated $77.3M increase.
- Simplex Trading's biggest Q2 2020 reduction was Apple, cutting an estimated $55.9M.
- Simplex Trading fully exited Adobe in Q2 2020, selling an estimated $22M.
- Simplex Trading's ten largest holdings make up 44% of its $62.7B portfolio in Q2 2020.
- Simplex Trading opened 1,290 new positions and closed 1,278 in Q2 2020.
- Simplex Trading's portfolio value rose 11% quarter-over-quarter to $62.7B.
Based on Simplex Trading's 13F filing for Q2 2020, filed 13 Jul 2020.