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 | |
|---|---|---|---|---|---|---|
|
MAXR
2726
PUT
DELISTED
Maxar Technologies Inc. Common Stock
MAXR
| $581K | ﹤0.01% |
324
+115
| +55% | +$1.49K |
|
2727
CALL
G-III Apparel Group
GIII
$1.47B
| $580K | ﹤0.01% |
437
+389
| +810% | +$4.29K |
|
2728
CALL
Mattel
MAT
$4.17B
| $580K | ﹤0.01% |
600
+180
| +43% | +$1.63K |
|
2729
NovoCure
NVCR
$2.04B
| $580K | ﹤0.01% |
9,791
+9,591
| +4,796% | +$631K |
|
2730
PUT
Wintrust Financial
WTFC
$10.7B
| $580K | ﹤0.01% |
133
+105
| +375% | +$4.19K |
|
2731
CALL
Park Hotels & Resorts
PK
$2.97B
| $579K | ﹤0.01% |
586
-1,633
| -74% | -$15.2K |
|
2732
Anterix
ATEX
$1.83B
| $578K | ﹤0.01% |
12,749
+11,455
| +885% | +$585K |
|
|
AVYA
2733
DELISTED
Avaya Holdings Corp. Common Stock
AVYA
| $578K | ﹤0.01% |
46,786
+46,118
| +6,904% | +$531K |
|
2734
CALL
The Greenbrier Companies
GBX
$1.61B
| $577K | ﹤0.01% |
254
+80
| +46% | +$1.56K |
|
2735
PUT
Ryanair
RYAAY
$29.5B
| $577K | ﹤0.01% |
218
+173
| +384% | +$4.38K |
|
2736
PUT
Toro Company
TTC
$8.93B
| $577K | ﹤0.01% |
+87
| New | +$5.71K |
|
2737
CALL
Lattice Semiconductor
LSCC
$17.6B
| $576K | ﹤0.01% |
203
+112
| +123% | +$2.62K |
|
2738
CALL
United States Gasoline Fund
UGA
$142M
| $576K | ﹤0.01% |
304
+217
| +249% | +$3.33K |
|
2739
CALL
Cameco
CCJ
$38.3B
| $575K | ﹤0.01% |
561
-3,695
| -87% | -$36.9K |
|
|
HOLX
2740
CALL
DELISTED
Hologic
HOLX
| $575K | ﹤0.01% |
101
-890
| -90% | -$43.7K |
|
|
SGMO
2741
DELISTED
SANGAMO THERAPEUTICS INC
SGMO
| $575K | ﹤0.01% |
64,240
+40,558
| +171% | +$376K |
|
2742
CALL
Sonoco
SON
$5.76B
| $575K | ﹤0.01% |
110
+32
| +41% | +$1.58K |
|
|
NUVA
2743
CALL
DELISTED
NuVasive, Inc.
NUVA
| $573K | ﹤0.01% |
103
+102
| +10,200% | +$5.9K |
|
2744
PUT
Icahn Enterprises
IEP
$5.17B
| $572K | ﹤0.01% |
118
+18
| +18% | +$885 |
|
2745
Kraft Heinz
KHC
$30.4B
| $572K | ﹤0.01% |
17,951
-215,049
| -92% | -$6.46M |
|
2746
PUT
W.R. Berkley
WRB
$28B
| $572K | ﹤0.01% |
225
+34
| +18% | +$834 |
|
2747
PUT
Takeda Pharmaceutical
TAK
$55.1B
| $571K | ﹤0.01% |
319
+10
| +3% | +$180 |
|
2748
PUT
Jack Henry & Associates
JKHY
$10.7B
| $570K | ﹤0.01% |
31
+23
| +288% | +$4.01K |
|
2749
PUT
Kulicke & Soffa
KLIC
$5.3B
| $570K | ﹤0.01% |
274
+91
| +50% | +$2.06K |
|
2750
Aecom
ACM
$9.07B
| $569K | ﹤0.01% |
15,142
-10,122
| -40% | -$363K |
|
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.