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
|
+$170M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$71.3M |
| 3 |
AT&T
T
|
+$44.2M |
| 4 |
Meta Platforms (Facebook)
META
|
+$37.1M |
| 5 |
iShares MSCI Emerging Markets ETF
EEM
|
+$34.4M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Microsoft
MSFT
|
+$94.3M |
| 2 |
JPMorgan Chase
JPM
|
+$68.2M |
| 3 |
Citigroup
C
|
+$62.8M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
+$50.9M |
| 5 |
SPDR Gold Trust
GLD
|
+$46.3M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Consumer Discretionary | 0.38% |
| 2 | Technology | 0.35% |
| 3 | Communication Services | 0.24% |
| 4 | Healthcare | 0.2% |
| 5 | Consumer Staples | 0.13% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1501
TG Therapeutics
TGTX
$8.58B
| $3.26M | ﹤0.01% |
275,784
+148,756
| +117% | +$1.08M |
|
1502
PUT
Yum China
YUMC
$14.9B
| $3.26M | ﹤0.01% |
59,600
+45,900
| +335% | +$2.33M |
|
1503
PUT
Regions Financial
RF
$26.3B
| $3.25M | ﹤0.01% |
150,800
+30,600
| +25% | +$664K |
|
1504
CALL
Kinross Gold
KGC
$28.5B
| $3.25M | ﹤0.01% |
932,000
+280,200
| +43% | +$1.11M |
|
1505
CALL
Canadian Pacific Kansas City
CP
$82B
| $3.24M | ﹤0.01% |
43,500
-16,900
| -28% | -$1.27M |
|
1506
CALL
JB Hunt Transport Services
JBHT
$27.1B
| $3.24M | ﹤0.01% |
18,600
+6,000
| +48% | +$1.05M |
|
1507
CALL
Elastic
ESTC
$6.1B
| $3.24M | ﹤0.01% |
62,900
+18,400
| +41% | +$1.1M |
|
1508
PUT
First Horizon
FHN
$12.1B
| $3.23M | ﹤0.01% |
131,900
+54,000
| +69% | +$1.31M |
|
1509
PUT
Raymond James Financial
RJF
$32.5B
| $3.23M | ﹤0.01% |
30,200
-25,000
| -45% | -$2.81M |
|
1510
CALL
Edison International
EIX
$30.7B
| $3.23M | ﹤0.01% |
50,700
+29,200
| +136% | +$1.79M |
|
1511
CALL
Capri Holdings
CPRI
$1.77B
| $3.22M | ﹤0.01% |
56,200
-51,300
| -48% | -$2.59M |
|
1512
Vodafone
VOD
$34.9B
| $3.21M | ﹤0.01% |
+317,513
| New | +$3.56M |
|
|
MDC
1513
PUT
DELISTED
M.D.C. Holdings, Inc.
MDC
| $3.21M | ﹤0.01% |
101,500
+95,800
| +1,681% | +$2.96M |
|
1514
Capital One
COF
$124B
| $3.21M | ﹤0.01% |
+34,484
| New | +$3.39M |
|
1515
PUT
H&R Block
HRB
$5.18B
| $3.2M | ﹤0.01% |
87,700
-27,100
| -24% | -$1.1M |
|
1516
CALL
DigitalBridge
DBRG
$2.94B
| $3.2M | ﹤0.01% |
292,400
+6,200
| +2% | +$80.6K |
|
|
APLS
1517
PUT
DELISTED
Apellis Pharmaceuticals
APLS
| $3.19M | ﹤0.01% |
61,800
-3,900
| -6% | -$207K |
|
1518
CALL
Harley-Davidson
HOG
$2.68B
| $3.19M | ﹤0.01% |
76,800
+54,200
| +240% | +$2.31M |
|
1519
CALL
Xenon Pharmaceuticals
XENE
$6.32B
| $3.19M | ﹤0.01% |
81,000
+79,800
| +6,650% | +$2.91M |
|
1520
Booking.com
BKNG
$138B
| $3.17M | ﹤0.01% |
+39,375
| New | +$2.99M |
|
|
CIVI
1521
PUT
DELISTED
Civitas Resources
CIVI
| $3.17M | ﹤0.01% |
54,800
+24,400
| +80% | +$1.57M |
|
1522
PUT
TripAdvisor
TRIP
$1.59B
| $3.17M | ﹤0.01% |
176,500
+26,000
| +17% | +$543K |
|
1523
PUT
Nice
NICE
$5.29B
| $3.17M | ﹤0.01% |
16,500
-5,500
| -25% | -$1.06M |
|
1524
PUT
Signet Jewelers
SIG
$3.55B
| $3.17M | ﹤0.01% |
46,600
+27,600
| +145% | +$1.76M |
|
1525
PUT
Coherent
COHR
$55.2B
| $3.16M | ﹤0.01% |
90,000
+8,400
| +10% | +$292K |
|
Similar funds
Simplex Trading's Q4 2022 Portfolio in Review
As of Q4 2022, Simplex Trading held 11,206 positions worth $91.9B, up 3.9% from $88.5B the previous quarter. Its ten largest holdings account for 34% of the portfolio.
Simplex Trading's Q4 2022 filing shows 1,219 new, 3,365 increased, 4,370 reduced and 1,942 closed positions. Its largest new stake was iShares MSCI Emerging Markets ETF: 932,756 shares worth $35.4M. The largest sale was Microsoft, an estimated $94.3M.
By sector, the portfolio is most concentrated in Consumer Discretionary at 0.38% of assets, up from 0.3% a quarter earlier, followed by Technology and Communication Services.
- Simplex Trading's largest Q4 2022 buy was iShares MSCI Emerging Markets ETF: 932,756 shares worth $35.4M.
- Simplex Trading added most to Amazon in Q4 2022, an estimated $170M increase.
- Simplex Trading's biggest Q4 2022 reduction was Microsoft, cutting an estimated $94.3M.
- Simplex Trading fully exited JPMorgan Chase in Q4 2022, selling an estimated $68.2M.
- Simplex Trading's ten largest holdings make up 34% of its $91.9B portfolio in Q4 2022.
- Simplex Trading opened 1,219 new positions and closed 1,942 in Q4 2022.
- Simplex Trading's portfolio value rose 3.9% quarter-over-quarter to $91.9B.
Based on Simplex Trading's 13F filing for Q4 2022, filed 2 Feb 2023.