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 |
Amazon
AMZN
|
+$102M |
| 2 |
TSMC
TSM
|
+$27.8M |
| 3 |
JPMorgan Chase
JPM
|
+$22.4M |
| 4 |
Boeing
BA
|
+$19.4M |
| 5 |
ExxonMobil
XOM
|
+$14.7M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
SPDR Gold Trust
GLD
|
+$95.5M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$79.6M |
| 3 |
Tesla
TSLA
|
+$75.3M |
| 4 |
NVIDIA
NVDA
|
+$51.6M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
+$40.5M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Consumer Discretionary | 0.53% |
| 2 | Technology | 0.4% |
| 3 | Healthcare | 0.22% |
| 4 | Financials | 0.21% |
| 5 | Communication Services | 0.18% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
WCN
3676
CALL
Waste Connections
WCN
$42.7B
| $280K | ﹤0.01% |
27
-92
| -77% | -$9.2K |
|
|
VER
3677
PUT
DELISTED
VEREIT, Inc.
VER
| $280K | ﹤0.01% |
86
+65
| +310% | +$2.14K |
|
|
VISN
3678
PUT
Vistance Networks Inc
VISN
$2.67B
| $279K | ﹤0.01% |
310
+9
| +3% | +$85 |
|
|
KUST
3679
PUT
Kustom Entertainment Inc
KUST
$639K
| – | – |
0
| – | – |
|
|
GOOD
3680
PUT
Gladstone Commercial Corp
GOOD
$627M
| $279K | ﹤0.01% |
166
+98
| +144% | +$1.79K |
|
3681
PUT
Gray Television
GTN
$430M
| $279K | ﹤0.01% |
203
-166
| -45% | -$2.43K |
|
|
SPTN
3682
CALL
DELISTED
SpartanNash
SPTN
| $279K | ﹤0.01% |
171
-273
| -61% | -$5.45K |
|
3683
PUT
Yext
YEXT
$564M
| $279K | ﹤0.01% |
184
+60
| +48% | +$1.01K |
|
|
ADVM
3684
DELISTED
Adverum Biotechnologies
ADVM
| $278K | ﹤0.01% |
2,703
-5,819
| -68% | -$871K |
|
3685
CALL
Alkermes
ALKS
$8.42B
| $278K | ﹤0.01% |
168
+14
| +9% | +$254 |
|
3686
PUT
Columbia Sportswear
COLM
$3.3B
| $278K | ﹤0.01% |
32
+25
| +357% | +$2.07K |
|
|
MAXN
3687
CALL
DELISTED
Maxeon Solar Technologies
MAXN
| $278K | ﹤0.01% |
+2
| New | +$3.49K |
|
3688
CALL
Middleby
MIDD
$6.11B
| $278K | ﹤0.01% |
31
-118
| -79% | -$10.7K |
|
3689
PUT
Open Text
OTEX
$6.02B
| $278K | ﹤0.01% |
66
-35
| -35% | -$1.53K |
|
3690
CALL
Tyler Technologies
TYL
$13.7B
| $278K | ﹤0.01% |
8
-18
| -69% | -$6.22K |
|
3691
CALL
Carter's
CRI
$1.45B
| $277K | ﹤0.01% |
32
-25
| -44% | -$2.08K |
|
3692
CALL
Liberty Media Series A
FWONA
$23.3B
| $277K | ﹤0.01% |
85
-102
| -55% | -$3.31K |
|
3693
CALL
National Health Investors
NHI
$3.81B
| $277K | ﹤0.01% |
46
-366
| -89% | -$22.6K |
|
3694
PUT
Rayonier
RYN
$6.64B
| $277K | ﹤0.01% |
116
+79
| +214% | +$1.97K |
|
3695
CALL
Sabra Healthcare REIT
SBRA
$5.61B
| $277K | ﹤0.01% |
201
-106
| -35% | -$1.56K |
|
3696
CALL
STAAR Surgical
STAA
$1.13B
| $277K | ﹤0.01% |
49
-263
| -84% | -$14.2K |
|
3697
CALL
ArcBest
ARCB
$3.33B
| $276K | ﹤0.01% |
89
+85
| +2,125% | +$2.65K |
|
3698
DMC Global
BOOM
$112M
| $276K | ﹤0.01% |
+8,401
| New | +$265K |
|
3699
Deckers Outdoor
DECK
$14.2B
| $275K | ﹤0.01% |
7,512
+5,148
| +218% | +$178K |
|
3700
MarineMax
HZO
$782M
| $275K | ﹤0.01% |
10,741
-23,527
| -69% | -$647K |
|
Similar funds
Simplex Trading's Q3 2020 Portfolio in Review
As of Q3 2020, Simplex Trading held 9,056 positions worth $73.5B, up 17% from $62.7B the previous quarter. Its ten largest holdings account for 43% of the portfolio.
Simplex Trading's Q3 2020 filing shows 1,403 new, 3,135 increased, 3,122 reduced and 1,191 closed positions. Its largest new stake was Goldman Sachs: 60,397 shares worth $12.1M. The largest sale was SPDR Gold Trust, an estimated $95.5M.
By sector, the portfolio is most concentrated in Consumer Discretionary at 0.53% of assets, up from 0.47% a quarter earlier, followed by Technology and Healthcare.
- Simplex Trading's largest Q3 2020 buy was Goldman Sachs: 60,397 shares worth $12.1M.
- Simplex Trading added most to Amazon in Q3 2020, an estimated $102M increase.
- Simplex Trading's biggest Q3 2020 reduction was SPDR Gold Trust, cutting an estimated $95.5M.
- Simplex Trading fully exited iShares MSCI EAFE ETF in Q3 2020, selling an estimated $40.5M.
- Simplex Trading's ten largest holdings make up 43% of its $73.5B portfolio in Q3 2020.
- Simplex Trading opened 1,403 new positions and closed 1,191 in Q3 2020.
- Simplex Trading's portfolio value rose 17% quarter-over-quarter to $73.5B.
Based on Simplex Trading's 13F filing for Q3 2020, filed 14 Oct 2020.