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 | |
|---|---|---|---|---|---|---|
3051
PUT
Dynatrace
DT
$12.1B
| $442K | ﹤0.01% |
109
+82
| +304% | +$2.7K |
|
|
THS
3052
PUT
DELISTED
Treehouse Foods
THS
| $442K | ﹤0.01% |
101
+87
| +621% | +$4.24K |
|
|
EVBG
3053
PUT
DELISTED
Everbridge, Inc. Common Stock
EVBG
| $442K | ﹤0.01% |
32
-10
| -24% | -$1.3K |
|
|
WPX
3054
PUT
DELISTED
WPX Energy, Inc.
WPX
| $442K | ﹤0.01% |
693
-2,070
| -75% | -$11.7K |
|
3055
Sabesp
SBS
$19.7B
| $441K | ﹤0.01% |
216,791
-30,552
| -12% | -$51.2K |
|
3056
CALL
Schwab US Broad Market ETF
SCHB
$42.8B
| $441K | ﹤0.01% |
534
-36
| -6% | -$415 |
|
3057
United States Natural Gas Fund
UNG
$470M
| $441K | ﹤0.01% |
10,763
-50,266
| -82% | -$2.39M |
|
|
TCO
3058
CALL
DELISTED
Taubman Centers Inc.
TCO
| $441K | ﹤0.01% |
117
-64
| -35% | -$2.62K |
|
3059
PUT
TE Connectivity
TEL
$58.8B
| $440K | ﹤0.01% |
54
+5
| +10% | +$377 |
|
3060
ProShares Ultra Bloomberg Crude Oil
UCO
$443M
| $440K | ﹤0.01% |
+61,500
| New | +$431K |
|
|
PS
3061
CALL
DELISTED
Pluralsight, Inc. Class A Common Stock
PS
| $440K | ﹤0.01% |
244
-18
| -7% | -$305 |
|
3062
PUT
Aegon
AEG
$13.5B
| $439K | ﹤0.01% |
1,619
-333
| -17% | -$818 |
|
3063
PUT
Allegion
ALLE
$13B
| $439K | ﹤0.01% |
43
+31
| +258% | +$3.06K |
|
3064
CALL
CONMED
CNMD
$1.29B
| $439K | ﹤0.01% |
61
+4
| +7% | +$278 |
|
|
DX
3065
CALL
Dynex Capital
DX
$2.99B
| $439K | ﹤0.01% |
+307
| New | +$4.11K |
|
|
KYNB
3066
Kyntra Bio
KYNB
$28.5M
| $439K | ﹤0.01% |
434
-924
| -68% | -$858K |
|
3067
PUT
Marcus Corp
MCS
$732M
| $439K | ﹤0.01% |
331
-193
| -37% | -$2.59K |
|
3068
CALL
NNN REIT
NNN
$9.39B
| $439K | ﹤0.01% |
124
+120
| +3,000% | +$3.92K |
|
3069
Perrigo
PRGO
$1.4B
| $439K | ﹤0.01% |
7,950
-11,862
| -60% | -$625K |
|
3070
Tractor Supply
TSCO
$16.3B
| $439K | ﹤0.01% |
+16,660
| New | +$364K |
|
3071
Yelp
YELP
$1.38B
| $439K | ﹤0.01% |
19,017
+15,189
| +397% | +$331K |
|
|
GNMK
3072
PUT
DELISTED
GenMark Diagnostics, Inc
GNMK
| $439K | ﹤0.01% |
299
-198
| -40% | -$2.01K |
|
|
AHRT
3073
PUT
AH Realty Trust
AHRT
$534M
| $437K | ﹤0.01% |
440
+424
| +2,650% | +$3.84K |
|
3074
CALL
CoreCivic
CXW
$3.1B
| $437K | ﹤0.01% |
467
-72
| -13% | -$821 |
|
3075
AllianceBernstein
AB
$3.47B
| $436K | ﹤0.01% |
16,041
-53,589
| -77% | -$1.24M |
|
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.