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 | |
|---|---|---|---|---|---|---|
|
WWE
2801
CALL
DELISTED
World Wrestling Entertainment
WWE
| $538K | ﹤0.01% |
124
-658
| -84% | -$28.2K |
|
2802
PUT
Compugen
CGEN
$216M
| $537K | ﹤0.01% |
358
-15
| -4% | -$202 |
|
2803
CALL
Oshkosh
OSK
$9.67B
| $537K | ﹤0.01% |
75
-35
| -32% | -$2.39K |
|
|
EQC
2804
PUT
DELISTED
Equity Commonwealth
EQC
| $537K | ﹤0.01% |
167
+38
| +29% | +$1.25K |
|
|
PRVB
2805
PUT
DELISTED
Provention Bio, Inc. Common Stock
PRVB
| $537K | ﹤0.01% |
381
+159
| +72% | +$2.01K |
|
|
BBBY
2806
CALL
Bed Bath & Beyond
BBBY
$473M
| $536K | ﹤0.01% |
208
+18
| +9% | +$264 |
|
2807
Galicia Financial Group
GGAL
$7.92B
| $536K | ﹤0.01% |
55,311
+25,168
| +83% | +$215K |
|
2808
ProShares Ultra Russell2000
UWM
$255M
| $536K | ﹤0.01% |
22,070
-5,190
| -19% | -$109K |
|
2809
PUT
Coherus Oncology
CHRS
$217M
| $535K | ﹤0.01% |
300
+292
| +3,650% | +$4.94K |
|
|
ARNA
2810
PUT
DELISTED
Arena Pharmaceuticals Inc
ARNA
| $535K | ﹤0.01% |
85
+61
| +254% | +$3.36K |
|
2811
CALL
Celldex Therapeutics
CLDX
$2.77B
| $534K | ﹤0.01% |
411
-319
| -44% | -$1.41K |
|
2812
CALL
SLM Corp
SLM
$4.57B
| $534K | ﹤0.01% |
760
+632
| +494% | +$4.72K |
|
2813
Waters Corp
WAT
$36.8B
| $534K | ﹤0.01% |
+2,963
| New | +$560K |
|
2814
CALL
BioNTech
BNTX
$22.6B
| $533K | ﹤0.01% |
+80
| New | +$4K |
|
2815
PUT
Carrier Global
CARR
$57.2B
| $533K | ﹤0.01% |
+240
| New | +$4.46K |
|
2816
Itaú Unibanco
ITUB
$91.3B
| $533K | ﹤0.01% |
+156,322
| New | +$507K |
|
2817
Bank OZK
OZK
$5.49B
| $533K | ﹤0.01% |
22,731
+7,938
| +54% | +$170K |
|
2818
PUT
Fidelity National Financial
FNF
$13.9B
| $532K | ﹤0.01% |
181
+167
| +1,193% | +$4.59K |
|
2819
CALL
TechnipFMC
FTI
$30.6B
| $532K | ﹤0.01% |
1,047
+524
| +100% | +$3.05K |
|
2820
PUT
GrafTech
EAF
$194M
| $531K | ﹤0.01% |
67
+47
| +235% | +$3.53K |
|
2821
CALL
Gold Fields
GFI
$29.2B
| $531K | ﹤0.01% |
565
+360
| +176% | +$2.73K |
|
2822
PUT
Iridium Communications
IRDM
$4.85B
| $531K | ﹤0.01% |
209
-1,666
| -89% | -$39.1K |
|
2823
PagerDuty
PD
$700M
| $531K | ﹤0.01% |
18,554
+11,157
| +151% | +$269K |
|
|
DNKN
2824
DELISTED
Dunkin' Brands Group, Inc.
DNKN
| $531K | ﹤0.01% |
+8,143
| New | +$507K |
|
2825
CALL
GoPro
GPRO
$116M
| $530K | ﹤0.01% |
1,114
+407
| +58% | +$1.54K |
|
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.