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 |
Alibaba
BABA
|
+$39.9M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$39M |
| 3 |
Mastercard
MA
|
+$31.3M |
| 4 |
Apple
AAPL
|
+$25.3M |
| 5 |
Alphabet (Google) Class C
GOOG
|
+$25.1M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
JPMorgan Chase
JPM
|
+$52.8M |
| 2 |
TSMC
TSM
|
+$43M |
| 3 |
Amazon
AMZN
|
+$24.7M |
| 4 |
iShares Silver Trust
SLV
|
+$24.2M |
| 5 |
Netflix
NFLX
|
+$21.1M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Consumer Discretionary | 0.65% |
| 2 | Technology | 0.37% |
| 3 | Healthcare | 0.33% |
| 4 | Industrials | 0.21% |
| 5 | Communication Services | 0.19% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1451
PUT
Skillsoft
SKIL
$56.9M
| $2.8M | ﹤0.01% |
+135
| New | +$27.4K |
|
1452
CALL
Jabil
JBL
$32.8B
| $2.8M | ﹤0.01% |
658
-191
| -22% | -$7.24K |
|
1453
TAL Education Group
TAL
$5.71B
| $2.8M | ﹤0.01% |
+39,113
| New | +$2.82M |
|
1454
PUT
CF Industries
CF
$19.2B
| $2.79M | ﹤0.01% |
722
-694
| -49% | -$22.9K |
|
1455
CALL
Williams Companies
WMB
$90.5B
| $2.79M | ﹤0.01% |
1,391
+474
| +52% | +$9.61K |
|
1456
PUT
J.M. Smucker
SJM
$12.6B
| $2.79M | ﹤0.01% |
241
+1
| +0.4% | +$116 |
|
1457
CALL
Raymond James Financial
RJF
$32.5B
| $2.78M | ﹤0.01% |
437
+339
| +346% | +$19.4K |
|
1458
Five Below
FIVE
$11.2B
| $2.78M | ﹤0.01% |
+15,876
| New | +$2.35M |
|
1459
Lemonade
LMND
$4.62B
| $2.77M | ﹤0.01% |
22,656
+19,859
| +710% | +$1.46M |
|
1460
PUT
Energy Transfer Partners
ET
$70.1B
| $2.77M | ﹤0.01% |
4,479
+250
| +6% | +$1.51K |
|
1461
PUT
BJs Wholesale Club
BJ
$11.9B
| $2.76M | ﹤0.01% |
740
-685
| -48% | -$27.4K |
|
1462
ConocoPhillips
COP
$147B
| $2.76M | ﹤0.01% |
68,927
+2,354
| +4% | +$86.8K |
|
1463
Hyatt Hotels
H
$17.6B
| $2.75M | ﹤0.01% |
37,066
+23,440
| +172% | +$1.53M |
|
1464
CALL
Kodak
KODK
$806M
| $2.75M | ﹤0.01% |
3,381
-3,324
| -50% | -$27.7K |
|
1465
Amplify Cybersecurity ETF
HACK
$2.63B
| $2.75M | ﹤0.01% |
47,784
+45,666
| +2,156% | +$2.31M |
|
1466
CALL
Newell Brands
NWL
$2.16B
| $2.75M | ﹤0.01% |
1,294
+224
| +21% | +$4.37K |
|
1467
UWM Holdings
UWMC
$621M
| $2.75M | ﹤0.01% |
+209,086
| New | +$2.19M |
|
1468
CALL
Boston Properties
BXP
$11B
| $2.74M | ﹤0.01% |
290
-264
| -48% | -$23.6K |
|
1469
Pultegroup
PHM
$24.5B
| $2.73M | ﹤0.01% |
+63,435
| New | +$2.81M |
|
1470
CALL
NRG Energy
NRG
$29.8B
| $2.73M | ﹤0.01% |
727
-324
| -31% | -$10.7K |
|
1471
CALL
Eastman Chemical
EMN
$7.8B
| $2.73M | ﹤0.01% |
272
-151
| -36% | -$14K |
|
1472
Mercado Libre
MELI
$91.3B
| $2.72M | ﹤0.01% |
1,624
-4,518
| -74% | -$6.37M |
|
1473
FuboTV Inc
FUBO
$245M
| $2.71M | ﹤0.01% |
+8,058
| New | +$2.21M |
|
|
1474
Skillsoft
SKIL
$56.9M
| $2.7M | ﹤0.01% |
+13,026
| New | +$2.64M |
|
1475
CALL
Perion Network
PERI
$367M
| $2.69M | ﹤0.01% |
2,117
+2,087
| +6,957% | +$18.4K |
|
Similar funds
Simplex Trading's Q4 2020 Portfolio in Review
As of Q4 2020, Simplex Trading held 9,568 positions worth $77.2B, up 5% from $73.5B the previous quarter. Its ten largest holdings account for 42% of the portfolio.
Simplex Trading's Q4 2020 filing shows 1,711 new, 3,402 increased, 3,106 reduced and 1,157 closed positions. Its largest new stake was Alibaba: 143,630 shares worth $33.4M. The largest sale was JPMorgan Chase, an estimated $52.8M.
By sector, the portfolio is most concentrated in Consumer Discretionary at 0.65% of assets, up from 0.53% a quarter earlier, followed by Technology and Healthcare.
- Simplex Trading's largest Q4 2020 buy was Alibaba: 143,630 shares worth $33.4M.
- Simplex Trading added most to Invesco QQQ Trust in Q4 2020, an estimated $39M increase.
- Simplex Trading's biggest Q4 2020 reduction was JPMorgan Chase, cutting an estimated $52.8M.
- Simplex Trading fully exited Target in Q4 2020, selling an estimated $14.3M.
- Simplex Trading's ten largest holdings make up 42% of its $77.2B portfolio in Q4 2020.
- Simplex Trading opened 1,711 new positions and closed 1,157 in Q4 2020.
- Simplex Trading's portfolio value rose 5% quarter-over-quarter to $77.2B.
Based on Simplex Trading's 13F filing for Q4 2020, filed 2 Feb 2021.