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 | |
|---|---|---|---|---|---|---|
|
MAG
2326
PUT
DELISTED
MAG Silver
MAG
| $822K | ﹤0.01% |
583
+123
| +27% | +$1.41K |
|
|
CLVS
2327
CALL
DELISTED
Clovis Oncology, Inc.
CLVS
| $822K | ﹤0.01% |
1,219
-4,115
| -77% | -$31.2K |
|
2328
EOG Resources
EOG
$78B
| $821K | ﹤0.01% |
16,208
-16,432
| -50% | -$796K |
|
2329
PUT
OSI Systems
OSIS
$3.57B
| $821K | ﹤0.01% |
110
+11
| +11% | +$804 |
|
2330
PUT
Fluor
FLR
$7.29B
| $820K | ﹤0.01% |
679
-96
| -12% | -$1.01K |
|
2331
PUT
NovaGold Resources
NG
$2.6B
| $820K | ﹤0.01% |
894
+510
| +133% | +$5.17K |
|
2332
EPR Properties
EPR
$4.86B
| $819K | ﹤0.01% |
+24,731
| New | +$734K |
|
2333
CALL
Molina Healthcare
MOH
$10.3B
| $818K | ﹤0.01% |
46
+10
| +28% | +$1.7K |
|
2334
CALL
HEICO Corp Class A
HEI.A
$35.4B
| $817K | ﹤0.01% |
82
-38
| -32% | -$2.95K |
|
2335
PUT
Henry Schein
HSIC
$9.74B
| $817K | ﹤0.01% |
140
-72
| -34% | -$4.02K |
|
2336
CALL
Leggett & Platt
LEG
$1.52B
| $815K | ﹤0.01% |
232
+181
| +355% | +$5.61K |
|
2337
Mattel
MAT
$4.17B
| $815K | ﹤0.01% |
84,360
-74,843
| -47% | -$679K |
|
2338
CALL
Meritage Homes
MTH
$4.87B
| $814K | ﹤0.01% |
214
+192
| +873% | +$5.67K |
|
2339
PUT
Pricesmart
PSMT
$5.75B
| $814K | ﹤0.01% |
135
+115
| +575% | +$6.63K |
|
2340
Celldex Therapeutics
CLDX
$2.77B
| $813K | ﹤0.01% |
+62,592
| New | +$277K |
|
2341
CALL
Brinker International
EAT
$8.02B
| $811K | ﹤0.01% |
338
+55
| +19% | +$1.18K |
|
|
HBI
2342
PUT
DELISTED
Hanesbrands
HBI
| $811K | ﹤0.01% |
719
+72
| +11% | +$720 |
|
2343
Caesars Entertainment
CZR
$6.1B
| $810K | ﹤0.01% |
+20,239
| New | +$561K |
|
2344
Huazhu Hotels Group
HTHT
$12.4B
| $805K | ﹤0.01% |
+22,989
| New | +$764K |
|
2345
CALL
Synaptics
SYNA
$4.41B
| $805K | ﹤0.01% |
134
-49
| -27% | -$3.07K |
|
2346
CALL
EQT Corp
EQT
$33.2B
| $804K | ﹤0.01% |
676
+324
| +92% | +$4.25K |
|
2347
CALL
Gogo Inc
GOGO
$515M
| $804K | ﹤0.01% |
2,546
+1,104
| +77% | +$2.37K |
|
|
HOLI
2348
PUT
DELISTED
Hollsys Automation Technologies INTERNATIONAL, LTD. COMMON (British Virgin Island)
HOLI
| $804K | ﹤0.01% |
605
+528
| +686% | +$7.17K |
|
|
DESP
2349
CALL
DELISTED
Despegar.com
DESP
| $803K | ﹤0.01% |
1,119
+1,074
| +2,387% | +$7.46K |
|
|
CALY
2350
CALL
Callaway Golf Company
CALY
$3.26B
| $803K | ﹤0.01% |
459
+287
| +167% | +$3.99K |
|
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.