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 | |
|---|---|---|---|---|---|---|
426
PUT
Lumentum
LITE
$64.6B
| $12.7M | 0.02% |
1,556
+1,415
| +1,004% | +$108K |
|
427
PUT
Western Digital
WDC
$192B
| $12.7M | 0.02% |
3,794
-561
| -13% | -$18.2K |
|
428
CALL
Vanguard FTSE Europe ETF
VGK
$30.2B
| $12.7M | 0.02% |
3,089
+2,654
| +610% | +$125K |
|
429
CALL
Elevance Health
ELV
$84.4B
| $12.6M | 0.02% |
481
+111
| +30% | +$29.6K |
|
430
CALL
Dow Inc
DOW
$22.5B
| $12.6M | 0.02% |
3,095
+937
| +43% | +$34.3K |
|
|
VMW
431
CALL
DELISTED
VMware, Inc
VMW
| $12.6M | 0.02% |
812
+421
| +108% | +$57.9K |
|
432
PUT
Live Nation Entertainment
LYV
$41.4B
| $12.5M | 0.02% |
2,830
+536
| +23% | +$23.5K |
|
433
PUT
ConocoPhillips
COP
$145B
| $12.5M | 0.02% |
2,984
+34
| +1% | +$1.38K |
|
434
CALL
Sysco
SYY
$39.3B
| $12.5M | 0.02% |
2,290
+1,379
| +151% | +$72.5K |
|
435
CALL
Illumina
ILMN
$28.9B
| $12.5M | 0.02% |
346
-64
| -16% | -$20.6K |
|
|
ALXN
436
CALL
DELISTED
Alexion Pharmaceuticals
ALXN
| $12.4M | 0.02% |
1,107
-50
| -4% | -$5.31K |
|
437
CALL
Ferrari
RACE
$65.4B
| $12.4M | 0.02% |
724
+494
| +215% | +$79.6K |
|
438
Boeing
BA
$164B
| $12.3M | 0.02% |
67,309
+67,239
| +96,056% | +$10.3M |
|
439
CALL
Zillow
Z
$7.18B
| $12.3M | 0.02% |
2,138
-862
| -29% | -$42.8K |
|
440
CALL
Match Group
MTCH
$8.87B
| $12.2M | 0.02% |
1,144
-517
| -31% | -$43.2K |
|
441
PUT
MetLife
MET
$60B
| $12.2M | 0.02% |
3,350
+140
| +4% | +$4.87K |
|
442
Wynn Resorts
WYNN
$9.79B
| $12.2M | 0.02% |
164,250
+69,914
| +74% | +$5.6M |
|
443
CALL
US Bancorp Series B Preferred Stock
USB.PRH
$747M
| $12.2M | 0.02% |
3,318
+233
| +8% | +$4.58K |
|
444
iShares Russell 2000 ETF
IWM
$81.6B
| $12.2M | 0.02% |
85,178
-65,838
| -44% | -$8.64M |
|
445
CALL
Chewy
CHWY
$8.81B
| $12.2M | 0.02% |
2,719
+1,890
| +228% | +$82.5K |
|
446
PUT
NetEase
NTES
$77.6B
| $12.1M | 0.02% |
1,410
+915
| +185% | +$68.9K |
|
447
PUT
Ford
F
$57.5B
| $12.1M | 0.02% |
19,891
-223
| -1% | -$1.24K |
|
448
PUT
Tractor Supply
TSCO
$15.4B
| $12M | 0.02% |
4,570
+1,965
| +75% | +$43K |
|
449
PUT
Humana
HUM
$47.7B
| $12M | 0.02% |
310
+2
| +0.6% | +$748 |
|
|
B
450
Barrick Mining
B
$62.8B
| $12M | 0.02% |
+444,087
| New | +$11.1M |
|
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.