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 | |
|---|---|---|---|---|---|---|
2576
CALL
Royalty Pharma
RPRX
$26.1B
| $744K | ﹤0.01% |
177
+174
| +5,800% | +$7.47K |
|
|
DCH
2577
CALL
Dauch Corp
DCH
$1.3B
| $743K | ﹤0.01% |
1,289
-188
| -13% | -$1.34K |
|
2578
Kroger
KR
$34.8B
| $743K | ﹤0.01% |
+21,912
| New | +$757K |
|
2579
ProShares Short QQQ
PSQ
$694M
| $743K | ﹤0.01% |
8,981
+6,985
| +350% | +$601K |
|
2580
Yelp
YELP
$1.38B
| $743K | ﹤0.01% |
36,990
+17,973
| +95% | +$409K |
|
|
GTM
2581
ZoomInfo Technologies
GTM
$861M
| $742K | ﹤0.01% |
17,283
+17,083
| +8,542% | +$670K |
|
2582
CALL
H&R Block
HRB
$5.18B
| $741K | ﹤0.01% |
455
+205
| +82% | +$3.01K |
|
2583
PUT
Xerox
XRX
$337M
| $741K | ﹤0.01% |
395
-6
| -1% | -$105 |
|
2584
CALL
DaVita
DVA
$15.1B
| $736K | ﹤0.01% |
86
+31
| +56% | +$2.65K |
|
2585
OraSure Technologies
OSUR
$273M
| $736K | ﹤0.01% |
+60,484
| New | +$827K |
|
2586
CALL
InMode
INMD
$872M
| $734K | ﹤0.01% |
406
-284
| -41% | -$4.66K |
|
2587
CALL
Service Corp International
SCI
$11.4B
| $733K | ﹤0.01% |
174
-362
| -68% | -$15.4K |
|
2588
PUT
AutoNation
AN
$6.97B
| $730K | ﹤0.01% |
138
+27
| +24% | +$1.41K |
|
2589
Norfolk Southern
NSC
$78.8B
| $730K | ﹤0.01% |
3,414
+1,891
| +124% | +$380K |
|
2590
Roper Technologies
ROP
$36.3B
| $730K | ﹤0.01% |
+1,849
| New | +$769K |
|
2591
Cameco
CCJ
$38.3B
| $729K | ﹤0.01% |
72,179
-4,320
| -6% | -$46.8K |
|
2592
PUT
CNX Resources
CNX
$4.85B
| $729K | ﹤0.01% |
773
+526
| +213% | +$5.36K |
|
|
JWN
2593
DELISTED
Nordstrom
JWN
| $729K | ﹤0.01% |
61,205
+60,905
| +20,302% | +$913K |
|
|
MNTV
2594
CALL
DELISTED
Momentive Global Inc. Common Stock
MNTV
| $729K | ﹤0.01% |
330
+274
| +489% | +$6.36K |
|
2595
PUT
Knight Transportation
KNX
$11.8B
| $728K | ﹤0.01% |
179
-142
| -44% | -$6.24K |
|
2596
PUT
Goodyear
GT
$2.07B
| $727K | ﹤0.01% |
948
+58
| +7% | +$537 |
|
2597
Hyatt Hotels
H
$17.6B
| $727K | ﹤0.01% |
+13,626
| New | +$731K |
|
|
SRG
2598
CALL
Seritage Growth Properties
SRG
$130M
| $727K | ﹤0.01% |
541
-282
| -34% | -$3.45K |
|
|
2599
Xerox
XRX
$337M
| $725K | ﹤0.01% |
38,635
+20,717
| +116% | +$363K |
|
2600
CALL
Ameriprise Financial
AMP
$46.8B
| $724K | ﹤0.01% |
47
-3
| -6% | -$462 |
|
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.