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 | Miscellaneous | 97.74% |
| 2 | Technology | 0.49% |
| 3 | Consumer Discretionary | 0.48% |
| 4 | Communication Services | 0.35% |
| 5 | Healthcare | 0.27% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
401
CALL
Invesco DB US Dollar Index Bullish Fund
UUP
$300M
| $13.8M | 0.02% |
5,254
-1,980
| -27% | -$53K |
|
|
ALXN
402
PUT
DELISTED
Alexion Pharmaceuticals
ALXN
| $13.7M | 0.02% |
1,224
-624
| -34% | -$66.2K |
|
403
PUT
Dollar General
DG
$29.4B
| $13.7M | 0.02% |
720
-42
| -6% | -$7.6K |
|
404
CALL
Las Vegas Sands
LVS
$28.7B
| $13.6M | 0.02% |
2,997
-2,519
| -46% | -$118K |
|
405
CALL
Carvana
CVNA
$53.7B
| $13.6M | 0.02% |
5,655
+2,395
| +73% | +$44.9K |
|
406
CALL
TJX Companies
TJX
$145B
| $13.5M | 0.02% |
2,679
+688
| +35% | +$34.6K |
|
407
PUT
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
$26.5B
| $13.5M | 0.02% |
417
+318
| +321% | +$96.4K |
|
408
PUT
Darden Restaurants
DRI
$24.6B
| $13.5M | 0.02% |
1,780
-254
| -12% | -$18K |
|
|
AYX
409
PUT
DELISTED
Alteryx Inc
AYX
| $13.4M | 0.02% |
816
+38
| +5% | +$4.92K |
|
410
PUT
General Mills
GIS
$20.5B
| $13.4M | 0.02% |
2,172
+283
| +15% | +$17.1K |
|
411
PUT
Waste Management
WM
$87.5B
| $13.4M | 0.02% |
1,264
+675
| +115% | +$68.2K |
|
412
PUT
EOG Resources
EOG
$76.2B
| $13.2M | 0.02% |
2,611
+856
| +49% | +$41.5K |
|
413
CALL
TAL Education Group
TAL
$6.88B
| $13.2M | 0.02% |
1,931
+1,185
| +159% | +$67.8K |
|
|
FISV
414
PUT
Fiserv Inc
FISV
$28.2B
| $13.2M | 0.02% |
1,352
+629
| +87% | +$63.3K |
|
415
PUT
Universal Display
OLED
$3.78B
| $13.1M | 0.02% |
875
+42
| +5% | +$6.16K |
|
416
NextEra Energy
NEE
$174B
| $13M | 0.02% |
216,508
+53,828
| +33% | +$3.22M |
|
417
CALL
Take-Two Interactive
TTWO
$40.1B
| $13M | 0.02% |
930
+21
| +2% | +$2.75K |
|
|
WORK
418
DELISTED
Slack Technologies, Inc.
WORK
| $12.9M | 0.02% |
416,527
+190,689
| +84% | +$5.73M |
|
419
CALL
United Rentals
URI
$62.9B
| $12.9M | 0.02% |
866
+215
| +33% | +$27.3K |
|
|
VMRK
420
CALL
Vivmark Residential
VMRK
$50.6B
| $12.9M | 0.02% |
2,192
+1,707
| +352% | +$106K |
|
421
PUT
Teva Pharmaceuticals
TEVA
$42.4B
| $12.9M | 0.02% |
10,450
-1,170
| -10% | -$13.2K |
|
422
CALL
Palo Alto Networks
PANW
$272B
| $12.9M | 0.02% |
3,360
+1,122
| +50% | +$39.5K |
|
423
ProShares UltraPro QQQ
TQQQ
$35.9B
| $12.8M | 0.02% |
1,046,296
+751,736
| +255% | +$7.06M |
|
424
CALL
Marvell Technology
MRVL
$201B
| $12.8M | 0.02% |
3,642
+300
| +9% | +$8.78K |
|
425
CALL
Veeva Systems
VEEV
$44.5B
| $12.7M | 0.02% |
542
+82
| +18% | +$16.3K |
|
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 1,291 new, 3,426 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 Miscellaneous at 98% of assets, down from 98% a quarter earlier, followed by Technology and Consumer Discretionary.
- 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 1,291 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.