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 | |
|---|---|---|---|---|---|---|
5601
CALL
Mativ Holdings
MATV
$481M
| $62K | ﹤0.01% |
3,000
-21,100
| -88% | -$457K |
|
|
MTA
5602
CALL
Metalla Royalty & Streaming
MTA
$688M
| $62K | ﹤0.01% |
12,700
-1,800
| -12% | -$8.63K |
|
5603
PUT
O-I Glass
OI
$1.1B
| $62K | ﹤0.01% |
3,800
-18,900
| -83% | -$304K |
|
5604
PUT
Photronics
PLAB
$1.79B
| $62K | ﹤0.01% |
3,700
-29,300
| -89% | -$499K |
|
5605
CALL
Rollins
ROL
$18.3B
| $62K | ﹤0.01% |
1,700
+1,300
| +325% | +$50.5K |
|
5606
Texas Roadhouse
TXRH
$13.5B
| $62K | ﹤0.01% |
687
-8,533
| -93% | -$820K |
|
5607
ProShares VIX Short-Term Futures ETF
VIXY
$201M
| $62K | ﹤0.01% |
+277
| New | +$76.7K |
|
|
UCB
5608
United Community Banks
UCB
$4.24B
| $62K | ﹤0.01% |
+1,843
| New | +$66.9K |
|
|
OMGA
5609
DELISTED
Omega Therapeutics, Inc. Common Stock
OMGA
| $62K | ﹤0.01% |
10,921
-2,050
| -16% | -$11.5K |
|
|
RBT
5610
CALL
DELISTED
Rubicon Technologies, Inc.
RBT
| $62K | ﹤0.01% |
4,375
-13
| -0.3% | -$205 |
|
|
ELVT
5611
PUT
DELISTED
Elevate Credit, Inc.
ELVT
| $62K | ﹤0.01% |
35,800
+33,800
| +1,690% | +$46.9K |
|
|
CEI
5612
PUT
DELISTED
Camber Energy, Inc
CEI
| $62K | ﹤0.01% |
30,800
+29,846
| +3,129% | +$188K |
|
5613
PUT
Amphastar Pharmaceuticals
AMPH
$879M
| $61K | ﹤0.01% |
2,200
| – | – |
|
5614
PUT
BridgeBio Pharma
BBIO
$15.7B
| $61K | ﹤0.01% |
8,100
-16,700
| -67% | -$160K |
|
5615
PUT
Cognex
CGNX
$10.9B
| $61K | ﹤0.01% |
1,300
-38,700
| -97% | -$1.81M |
|
5616
CALL
CRA International
CRAI
$1.16B
| $61K | ﹤0.01% |
500
-1,800
| -78% | -$198K |
|
5617
CRH
CRH
$63.2B
| $61K | ﹤0.01% |
1,546
+1,515
| +4,887% | +$56.7K |
|
5618
Sprinklr
CXM
$1.49B
| $61K | ﹤0.01% |
7,582
+6,039
| +391% | +$52.3K |
|
5619
PUT
Heartland Express
HTLD
$948M
| $61K | ﹤0.01% |
4,000
+3,700
| +1,233% | +$57.1K |
|
5620
CALL
Jack in the Box
JACK
$312M
| $61K | ﹤0.01% |
900
-4,000
| -82% | -$307K |
|
5621
CALL
JPMorgan Inflation Managed Bond ETF
JCPI
$869M
| $61K | ﹤0.01% |
+1,500
| New | +$69.4K |
|
5622
CALL
Fidelity Nasdaq Composite Index ETF
ONEQ
$10.4B
| $61K | ﹤0.01% |
1,500
-6,300
| -81% | -$269K |
|
5623
PUT
Sportradar
SRAD
$4.3B
| $61K | ﹤0.01% |
6,200
-9,100
| -59% | -$88.8K |
|
5624
CALL
Taysha Gene Therapies
TSHA
$1.68B
| $61K | ﹤0.01% |
27,200
+25,800
| +1,843% | +$52.2K |
|
5625
PUT
Valley National Bancorp
VLY
$7.9B
| $61K | ﹤0.01% |
5,400
+4,500
| +500% | +$53K |
|
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.