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 | |
|---|---|---|---|---|---|---|
|
WMGI
3576
PUT
DELISTED
Wright Medical Group Inc
WMGI
| $288K | ﹤0.01% |
97
+26
| +37% | +$760 |
|
3577
3D Systems Corp
DDD
$430M
| $287K | ﹤0.01% |
41,098
-1,250
| -3% | -$9.35K |
|
3578
CALL
CNA Financial
CNA
$14.7B
| $286K | ﹤0.01% |
89
+46
| +107% | +$1.42K |
|
3579
Citi Trends
CTRN
$543M
| $286K | ﹤0.01% |
+14,187
| New | +$186K |
|
3580
CALL
Icahn Enterprises
IEP
$5.19B
| $286K | ﹤0.01% |
59
-11
| -16% | -$541 |
|
3581
PUT
Progress Software
PRGS
$1.59B
| $286K | ﹤0.01% |
74
+56
| +311% | +$2.13K |
|
3582
SiriusXM
SIRI
$10.5B
| $286K | ﹤0.01% |
4,885
-7,906
| -62% | -$443K |
|
3583
Upland Software
UPLD
$13.1M
| $286K | ﹤0.01% |
824
-1,365
| -62% | -$425K |
|
|
VNET
3584
PUT
VNET Group
VNET
$2.04B
| $286K | ﹤0.01% |
120
-97
| -45% | -$1.56K |
|
3585
Verisk Analytics
VRSK
$27.1B
| $286K | ﹤0.01% |
+1,683
| New | +$266K |
|
|
ZYNE
3586
CALL
DELISTED
Zynerba Pharmaceuticals, Inc
ZYNE
| $286K | ﹤0.01% |
850
+561
| +194% | +$2.65K |
|
3587
CALL
Artivion
AORT
$1.27B
| $285K | ﹤0.01% |
149
-108
| -42% | -$2.29K |
|
3588
Teucrium Soybean Fund
SOYB
$62.1M
| $285K | ﹤0.01% |
20,441
+10,044
| +97% | +$138K |
|
3589
Weis Markets
WMK
$1.85B
| $285K | ﹤0.01% |
+5,690
| New | +$285K |
|
|
CHUY
3590
CALL
DELISTED
Chuy's Holdings, Inc. Common Stock
CHUY
| $285K | ﹤0.01% |
192
+119
| +163% | +$1.78K |
|
3591
Invesco DB Oil Fund
DBO
$387M
| $284K | ﹤0.01% |
+40,706
| New | +$254K |
|
3592
Henry Schein
HSIC
$9.64B
| $284K | ﹤0.01% |
4,875
-5,501
| -53% | -$307K |
|
3593
ICU Medical
ICUI
$4.04B
| $284K | ﹤0.01% |
+1,542
| New | +$306K |
|
3594
PUT
Magnolia Oil & Gas
MGY
$5.53B
| $284K | ﹤0.01% |
469
+261
| +125% | +$1.43K |
|
3595
PUT
Omeros
OMER
$821M
| $284K | ﹤0.01% |
193
-316
| -62% | -$4.72K |
|
3596
CALL
PAR Technology
PAR
$682M
| $284K | ﹤0.01% |
95
+18
| +23% | +$394 |
|
|
TGNA
3597
PUT
DELISTED
TEGNA Inc
TGNA
| $284K | ﹤0.01% |
255
-105
| -29% | -$1.17K |
|
3598
PUT
Travere Therapeutics
TVTX
$5.27B
| $283K | ﹤0.01% |
139
-31
| -18% | -$494 |
|
|
UNIT
3599
CALL
Uniti Group
UNIT
$2.62B
| $283K | ﹤0.01% |
303
-1,938
| -86% | -$14.5K |
|
3600
EPAM Systems
EPAM
$4.92B
| $282K | ﹤0.01% |
+1,120
| New | +$246K |
|
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.