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 | |
|---|---|---|---|---|---|---|
2401
CALL
Coeur Mining
CDE
$15.6B
| $860K | ﹤0.01% |
1,166
-214
| -16% | -$1.61K |
|
2402
CALL
FS KKR Capital
FSK
$2.98B
| $859K | ﹤0.01% |
542
+518
| +2,158% | +$8.08K |
|
2403
HealthEquity
HQY
$7.91B
| $856K | ﹤0.01% |
+16,670
| New | +$916K |
|
2404
PUT
MillerKnoll
MLKN
$1.5B
| $856K | ﹤0.01% |
284
+208
| +274% | +$5.15K |
|
2405
CALL
Ollie's Bargain Outlet
OLLI
$4.01B
| $856K | ﹤0.01% |
98
+18
| +23% | +$1.76K |
|
2406
CALL
Radian Group
RDN
$5.14B
| $856K | ﹤0.01% |
586
+19
| +3% | +$283 |
|
2407
CALL
CNX Resources
CNX
$4.85B
| $854K | ﹤0.01% |
906
+145
| +19% | +$1.48K |
|
2408
CALL
Synaptics
SYNA
$4.41B
| $852K | ﹤0.01% |
106
-28
| -21% | -$2.21K |
|
|
P
2409
PUT
Everpure Inc
P
$24.8B
| $851K | ﹤0.01% |
553
+311
| +129% | +$5.08K |
|
2410
Suburban Propane Partners
SPH
$1.23B
| $851K | ﹤0.01% |
+52,307
| New | +$717K |
|
|
BLDP
2411
CALL
Ballard Power Systems
BLDP
$874M
| $850K | ﹤0.01% |
563
-165
| -23% | -$2.66K |
|
|
MASI
2412
CALL
DELISTED
Masimo
MASI
| $849K | ﹤0.01% |
36
-46
| -56% | -$10.3K |
|
2413
PUT
Hecla Mining
HL
$10.2B
| $848K | ﹤0.01% |
1,670
+767
| +85% | +$4.05K |
|
|
HOUS
2414
CALL
DELISTED
Anywhere Real Estate
HOUS
| $848K | ﹤0.01% |
899
+641
| +248% | +$6.16K |
|
2415
CALL
AeroVironment
AVAV
$7.57B
| $846K | ﹤0.01% |
141
-476
| -77% | -$35.3K |
|
2416
CALL
Cardlytics
CDLX
$21M
| $846K | ﹤0.01% |
12
+1
| +9% | +$727 |
|
2417
Alcon
ALC
$33.1B
| $845K | ﹤0.01% |
14,847
+10,713
| +259% | +$630K |
|
2418
PUT
Highwoods Properties
HIW
$3.71B
| $845K | ﹤0.01% |
252
+240
| +2,000% | +$8.84K |
|
|
BBL
2419
CALL
DELISTED
BHP Group Plc American Depositary Shares (Each representing two Ordinary Shares)
BBL
| $844K | ﹤0.01% |
198
-85
| -30% | -$3.79K |
|
2420
Alcoa
AA
$11.7B
| $843K | ﹤0.01% |
+72,505
| New | +$973K |
|
2421
CALL
ManpowerGroup
MAN
$2.39B
| $843K | ﹤0.01% |
+115
| New | +$8.26K |
|
2422
PUT
Talos Energy
TALO
$2.49B
| $843K | ﹤0.01% |
1,307
+571
| +78% | +$4.19K |
|
2423
CALL
Madrigal Pharmaceuticals
MDGL
$12.6B
| $842K | ﹤0.01% |
71
+56
| +373% | +$6.08K |
|
|
APHA
2424
DELISTED
Aphria Inc. Common Shares
APHA
| $842K | ﹤0.01% |
190,202
-32,491
| -15% | -$152K |
|
2425
Hyliion Holdings
HYLN
$663M
| $841K | ﹤0.01% |
+16,896
| New | +$553K |
|
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.