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 | |
|---|---|---|---|---|---|---|
326
PUT
Southwest Airlines
LUV
$23.3B
| $18.8M | 0.03% |
5,514
+3,363
| +156% | +$107K |
|
327
CALL
CME Group
CME
$90.1B
| $18.8M | 0.03% |
1,158
+563
| +95% | +$101K |
|
328
iShares 20+ Year Treasury Bond ETF
TLT
$42.2B
| $18.7M | 0.03% |
114,341
+76,441
| +202% | +$12.6M |
|
329
PUT
Las Vegas Sands
LVS
$30B
| $18.7M | 0.03% |
4,108
-1,509
| -27% | -$70.9K |
|
330
CALL
Lam Research
LRCX
$399B
| $18.7M | 0.03% |
5,780
-4,330
| -43% | -$118K |
|
331
PUT
Accenture
ACN
$85.7B
| $18.7M | 0.03% |
869
+173
| +25% | +$32.7K |
|
332
PUT
First Trust Natural Gas ETF
FCG
$636M
| $18.6M | 0.03% |
1,800
+583
| +48% | +$4.17K |
|
333
PUT
Blackstone
BX
$150B
| $18.6M | 0.03% |
3,286
-3,708
| -53% | -$195K |
|
334
CALL
BP
BP
$112B
| $18.5M | 0.03% |
7,954
+1,213
| +18% | +$29.1K |
|
335
CALL
Peloton Interactive
PTON
$2.71B
| $18.5M | 0.03% |
3,203
+731
| +30% | +$30.3K |
|
336
CALL
Lyft
LYFT
$5.57B
| $18.4M | 0.03% |
5,576
-3
| -0.1% | -$95 |
|
337
CALL
MongoDB
MDB
$24.5B
| $18.4M | 0.03% |
812
+175
| +27% | +$32.4K |
|
338
Starbucks
SBUX
$119B
| $18.4M | 0.03% |
+249,497
| New | +$18.8M |
|
339
PUT
Domino's
DPZ
$10.6B
| $18.3M | 0.03% |
496
+128
| +35% | +$47.2K |
|
340
CALL
ASML
ASML
$692B
| $18.2M | 0.03% |
495
+102
| +26% | +$32K |
|
341
CALL
Skyworks Solutions
SWKS
$9.5B
| $18.1M | 0.03% |
1,418
+382
| +37% | +$42.3K |
|
|
SHNY
342
CALL
DELISTED
Direxion Daily Silver Miners Index Bull 2X Shares
SHNY
| $18.1M | 0.03% |
15,557
+2,911
| +23% | +$3.39M |
|
343
Baidu
BIDU
$36.6B
| $18.1M | 0.03% |
151,024
+52,716
| +54% | +$5.64M |
|
344
Cisco
CSCO
$442B
| $18.1M | 0.03% |
387,234
+332,980
| +614% | +$14.6M |
|
345
CALL
NXP Semiconductors
NXPI
$70.4B
| $17.9M | 0.03% |
1,566
-215
| -12% | -$21.5K |
|
346
PUT
Air Products & Chemicals
APD
$66.1B
| $17.6M | 0.03% |
728
+447
| +159% | +$102K |
|
347
PUT
Snap
SNAP
$7.52B
| $17.5M | 0.03% |
7,451
+2,155
| +41% | +$38.3K |
|
|
TYNS
348
CALL
DELISTED
Direxion Daily 7-10 Year Treasury Bear 1X Shares
TYNS
| $17.5M | 0.03% |
5,546
+2,368
| +75% | +$7.46M |
|
349
CALL
Humana
HUM
$47.7B
| $17.4M | 0.03% |
449
+298
| +197% | +$111K |
|
350
CALL
Deere & Co
DE
$164B
| $17.3M | 0.03% |
1,098
+98
| +10% | +$14.2K |
|
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.