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 | |
|---|---|---|---|---|---|---|
3576
PUT
VirnetX Holding Corp
VHC
$53.1M
| $307K | ﹤0.01% |
29
+17
| +142% | +$1.82K |
|
3577
Fiverr
FVRR
$421M
| $306K | ﹤0.01% |
2,203
-1,087
| -33% | -$117K |
|
|
SAND
3578
DELISTED
Sandstorm Gold
SAND
| $306K | ﹤0.01% |
+36,309
| New | +$336K |
|
3579
Truist Financial
TFC
$64.6B
| $306K | ﹤0.01% |
+8,062
| New | +$304K |
|
|
AXNX
3580
CALL
DELISTED
Axonics, Inc. Common Stock
AXNX
| $306K | ﹤0.01% |
60
+37
| +161% | +$1.54K |
|
3581
PUT
Lear
LEA
$7.49B
| $305K | ﹤0.01% |
28
-174
| -86% | -$19.8K |
|
|
TRHC
3582
PUT
DELISTED
Tabula Rasa HealthCare, Inc. Common Stock
TRHC
| $305K | ﹤0.01% |
75
-39
| -34% | -$1.94K |
|
3583
CALL
American Water Works
AWK
$27.2B
| $304K | ﹤0.01% |
21
-141
| -87% | -$20K |
|
3584
Invesco CurrencyShares Australian Dollar Trust
FXA
$96.6M
| $304K | ﹤0.01% |
4,263
-28,934
| -87% | -$2.07M |
|
3585
CALL
Energy Recovery
ERII
$436M
| $303K | ﹤0.01% |
370
+329
| +802% | +$2.64K |
|
3586
PUT
MasTec
MTZ
$24.8B
| $303K | ﹤0.01% |
72
+23
| +47% | +$989 |
|
3587
Brookfield Infrastructure Partners
BIP
$19B
| $302K | ﹤0.01% |
+9,530
| New | +$280K |
|
3588
PUT
Calix
CALX
$2.38B
| $302K | ﹤0.01% |
170
+163
| +2,329% | +$3.08K |
|
3589
CALL
CEMIG Preferred Shares
CIG
$6.24B
| $302K | ﹤0.01% |
3,088
+2,743
| +795% | +$3.02K |
|
3590
PUT
TriNet
TNET
$3.13B
| $302K | ﹤0.01% |
51
+47
| +1,175% | +$3.02K |
|
3591
CALL
CleanSpark
CLSK
$3.47B
| $301K | ﹤0.01% |
+241
| New | +$2.04K |
|
3592
PUT
SiriusXM
SIRI
$10.7B
| $301K | ﹤0.01% |
56
-10
| -15% | -$573 |
|
|
EGOV
3593
CALL
DELISTED
NIC Inc
EGOV
| $301K | ﹤0.01% |
153
+95
| +164% | +$2.05K |
|
|
EGOV
3594
PUT
DELISTED
NIC Inc
EGOV
| $301K | ﹤0.01% |
153
+43
| +39% | +$929 |
|
3595
PUT
Cardiff Oncology
CRDF
$63.3M
| $300K | ﹤0.01% |
+212
| New | +$1.4K |
|
3596
CALL
FuelCell Energy
FCEL
$1.62B
| $300K | ﹤0.01% |
47
-4
| -8% | -$319 |
|
3597
iShares Core MSCI EAFE ETF
IEFA
$188B
| $300K | ﹤0.01% |
4,991
+2,598
| +109% | +$157K |
|
|
OPLN
3598
Openlane
OPLN
$4.27B
| $300K | ﹤0.01% |
+20,896
| New | +$326K |
|
3599
CALL
Banco Santander
SAN
$199B
| $300K | ﹤0.01% |
1,697
-54
| -3% | -$116 |
|
3600
PUT
ATI
ATI
$25.2B
| $299K | ﹤0.01% |
344
+118
| +52% | +$1.09K |
|
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.