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 | |
|---|---|---|---|---|---|---|
|
BZUN
2176
Baozun
BZUN
$144M
| $1.05M | ﹤0.01% |
+32,402
| New | +$1.29M |
|
|
HES
2177
DELISTED
Hess
HES
| $1.05M | ﹤0.01% |
+25,703
| New | +$1.22M |
|
2178
PUT
Kulicke & Soffa
KLIC
$5.3B
| $1.05M | ﹤0.01% |
470
+196
| +72% | +$4.63K |
|
|
MDC
2179
PUT
DELISTED
M.D.C. Holdings, Inc.
MDC
| $1.05M | ﹤0.01% |
241
+233
| +2,913% | +$9.29K |
|
|
2180
NVIDIA
NVDA
$5.01T
| $1.05M | ﹤0.01% |
77,400
-4,437,720
| -98% | -$51.6M |
|
2181
Direxion Daily Junior Gold Miners Index Bull 2X ETF
JNUG
$351M
| $1.05M | ﹤0.01% |
8,112
-17,350
| -68% | -$2.52M |
|
2182
CALL
Quanta Services
PWR
$93.9B
| $1.05M | ﹤0.01% |
198
-172
| -46% | -$8K |
|
|
SAFE
2183
PUT
Safehold
SAFE
$1.19B
| $1.04M | ﹤0.01% |
182
+59
| +48% | +$3.48K |
|
|
BLDP
2184
PUT
Ballard Power Systems
BLDP
$874M
| $1.04M | ﹤0.01% |
691
-384
| -36% | -$6.18K |
|
2185
CALL
Crocs
CROX
$6.69B
| $1.04M | ﹤0.01% |
244
-42
| -15% | -$1.62K |
|
2186
Seres Therapeutics
MCRB
$48M
| $1.04M | ﹤0.01% |
+1,841
| New | +$612K |
|
2187
CALL
Bank OZK
OZK
$5.49B
| $1.04M | ﹤0.01% |
489
+452
| +1,222% | +$10.5K |
|
|
IBTX
2188
CALL
DELISTED
Independent Bank Group, Inc.
IBTX
| $1.04M | ﹤0.01% |
236
+196
| +490% | +$8.67K |
|
2189
CALL
Elanco Animal Health
ELAN
$12.4B
| $1.04M | ﹤0.01% |
373
-328
| -47% | -$8.31K |
|
2190
CALL
Dillards
DDS
$8.87B
| $1.04M | ﹤0.01% |
285
-3
| -1% | -$84 |
|
2191
CALL
Sociedad Química y Minera de Chile
SQM
$19.6B
| $1.04M | ﹤0.01% |
321
+71
| +28% | +$2.21K |
|
2192
CALL
United Therapeutics
UTHR
$26.3B
| $1.04M | ﹤0.01% |
103
+48
| +87% | +$5.27K |
|
|
BHVN
2193
DELISTED
Biohaven Pharmaceutical Holding Company Ltd.
BHVN
| $1.04M | ﹤0.01% |
+15,992
| New | +$1.05M |
|
2194
PUT
Banco Bradesco
BBD
$38.1B
| $1.04M | ﹤0.01% |
3,551
+1,385
| +64% | +$4.54K |
|
2195
PUT
Cerence
CRNC
$382M
| $1.04M | ﹤0.01% |
212
-556
| -72% | -$26.7K |
|
2196
Popular Inc
BPOP
$11B
| $1.03M | ﹤0.01% |
28,536
+27,890
| +4,317% | +$1.03M |
|
2197
Louisiana-Pacific
LPX
$5.2B
| $1.03M | ﹤0.01% |
35,079
+19,368
| +123% | +$595K |
|
2198
CALL
VICI Properties
VICI
$29.4B
| $1.03M | ﹤0.01% |
443
+15
| +4% | +$337 |
|
2199
CALL
AMN Healthcare
AMN
$1.28B
| $1.03M | ﹤0.01% |
177
-622
| -78% | -$32.7K |
|
2200
CALL
Mohawk Industries
MHK
$6.9B
| $1.03M | ﹤0.01% |
106
+61
| +136% | +$5.49K |
|
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.