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 | |
|---|---|---|---|---|---|---|
1426
CALL
Riot Platforms
RIOT
$8.52B
| $3.63M | ﹤0.01% |
1,072,400
-476,300
| -31% | -$2.46M |
|
1427
PUT
M&T Bank
MTB
$36.2B
| $3.63M | ﹤0.01% |
25,000
-16,900
| -40% | -$2.78M |
|
1428
PUT
Fomento Económico Mexicano
FMX
$43.3B
| $3.62M | ﹤0.01% |
46,400
-6,600
| -12% | -$485K |
|
1429
CALL
Consolidated Edison
ED
$41.6B
| $3.62M | ﹤0.01% |
38,000
+1,500
| +4% | +$136K |
|
1430
PUT
Halozyme
HALO
$9.72B
| $3.62M | ﹤0.01% |
63,600
+47,400
| +293% | +$2.43M |
|
1431
PUT
Concentrix
CNXC
$1.36B
| $3.61M | ﹤0.01% |
27,100
+6,400
| +31% | +$778K |
|
1432
Infosys
INFY
$45B
| $3.6M | ﹤0.01% |
199,881
+22,835
| +13% | +$425K |
|
1433
CALL
Paycom
PAYC
$6.78B
| $3.6M | ﹤0.01% |
11,600
-9,200
| -44% | -$2.97M |
|
1434
PUT
New Fortress Energy
NFE
$101M
| $3.59M | ﹤0.01% |
84,600
+41,100
| +94% | +$1.99M |
|
1435
PUT
PBF Energy
PBF
$7.29B
| $3.58M | ﹤0.01% |
87,900
+27,300
| +45% | +$1.13M |
|
1436
PUT
TG Therapeutics
TGTX
$8.58B
| $3.58M | ﹤0.01% |
302,500
+163,900
| +118% | +$1.19M |
|
1437
PUT
Navios Maritime Partners
NMM
$2.25B
| $3.58M | ﹤0.01% |
137,800
-34,300
| -20% | -$873K |
|
1438
PNC Financial Services
PNC
$100B
| $3.58M | ﹤0.01% |
22,654
+17,790
| +366% | +$2.8M |
|
1439
PUT
BRC Group Holdings
RILY
$277M
| $3.57M | ﹤0.01% |
104,500
+99,300
| +1,910% | +$4.16M |
|
1440
CALL
Wabtec
WAB
$51.1B
| $3.57M | ﹤0.01% |
35,800
-37,300
| -51% | -$3.56M |
|
|
OSH
1441
PUT
DELISTED
Oak Street Health, Inc.
OSH
| $3.56M | ﹤0.01% |
165,700
+26,800
| +19% | +$561K |
|
1442
CALL
Rithm Capital
RITM
$5.09B
| $3.56M | ﹤0.01% |
435,800
+169,000
| +63% | +$1.41M |
|
1443
CALL
KeyCorp
KEY
$24.3B
| $3.55M | ﹤0.01% |
203,600
+51,700
| +34% | +$909K |
|
1444
CALL
PVH
PVH
$3.71B
| $3.54M | ﹤0.01% |
50,200
+31,600
| +170% | +$1.88M |
|
1445
PUT
Oneok
OKE
$58.7B
| $3.54M | ﹤0.01% |
53,900
-4,800
| -8% | -$295K |
|
1446
PUT
GXO Logistics
GXO
$6.06B
| $3.54M | ﹤0.01% |
82,900
+7,100
| +9% | +$285K |
|
1447
PUT
Canadian National Railway
CNI
$78.5B
| $3.53M | ﹤0.01% |
29,700
-3,900
| -12% | -$466K |
|
1448
PUT
Rocket Companies
RKT
$36.9B
| $3.52M | ﹤0.01% |
503,000
-153,300
| -23% | -$1.12M |
|
1449
PUT
MP Materials
MP
$7.35B
| $3.52M | ﹤0.01% |
144,900
+19,400
| +15% | +$588K |
|
1450
Invesco DB Commodity Index Tracking Fund
DBC
$1.73B
| $3.51M | ﹤0.01% |
142,540
+72,958
| +105% | +$1.83M |
|
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.