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 |
Microsoft
MSFT
|
+$114M |
| 2 |
NVIDIA
NVDA
|
+$85.9M |
| 3 |
Citigroup
C
|
+$61.5M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
+$45.5M |
| 5 |
Pfizer
PFE
|
+$41.6M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$467M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$71.2M |
| 3 |
Meta Platforms (Facebook)
META
|
+$47.6M |
| 4 |
Intel
INTC
|
+$41.9M |
| 5 |
TSMC
TSM
|
+$35.9M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.51% |
| 2 | Financials | 0.35% |
| 3 | Consumer Discretionary | 0.3% |
| 4 | Healthcare | 0.25% |
| 5 | Industrials | 0.18% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
SAND
4051
PUT
DELISTED
Sandstorm Gold
SAND
| $308K | ﹤0.01% |
59,600
+35,800
| +150% | +$209K |
|
|
VIEW
4052
CALL
DELISTED
View, Inc. Class A Common Stock
VIEW
| $308K | ﹤0.01% |
3,833
-2,280
| -37% | -$259K |
|
4053
PUT
California Resources
CRC
$4.67B
| $307K | ﹤0.01% |
8,000
+7,600
| +1,900% | +$330K |
|
4054
Knight Transportation
KNX
$11.3B
| $307K | ﹤0.01% |
6,281
+1,284
| +26% | +$65.8K |
|
4055
Natera
NTRA
$38.3B
| $307K | ﹤0.01% |
+7,012
| New | +$334K |
|
4056
CALL
Redwire
RDW
$2.06B
| $307K | ﹤0.01% |
129,200
+8,200
| +7% | +$25.3K |
|
4057
CALL
Consumer Portfolio Services
CPSS
$202M
| $306K | ﹤0.01% |
42,200
-3,500
| -8% | -$40.2K |
|
4058
Gerdau
GGB
$9.74B
| $306K | ﹤0.01% |
85,380
-150,531
| -64% | -$547K |
|
4059
PUT
Kodak
KODK
$822M
| $306K | ﹤0.01% |
66,800
+32,800
| +96% | +$179K |
|
4060
Under Armour Class C
UA
$2.77B
| $306K | ﹤0.01% |
51,410
+23,054
| +81% | +$180K |
|
4061
CALL
Chemed
CHE
$7.07B
| $305K | ﹤0.01% |
700
-1,700
| -71% | -$818K |
|
4062
PUT
Tootsie Roll Industries
TR
$2.93B
| $305K | ﹤0.01% |
10,318
-13,131
| -56% | -$410K |
|
4063
CALL
D-Wave Quantum Inc. Common Stock
QBTS
$6.7B
| $304K | ﹤0.01% |
+38,700
| New | +$310K |
|
|
EXPR
4064
CALL
DELISTED
Express, Inc.
EXPR
| $303K | ﹤0.01% |
13,900
+2,770
| +25% | +$94.6K |
|
4065
Ingersoll Rand
IR
$32.6B
| $302K | ﹤0.01% |
+6,987
| New | +$329K |
|
4066
Louisiana-Pacific
LPX
$5.06B
| $302K | ﹤0.01% |
+5,905
| New | +$336K |
|
4067
PUT
Manchester United
MANU
$3.97B
| $302K | ﹤0.01% |
22,800
-61,500
| -73% | -$770K |
|
4068
CALL
PennantPark Floating Rate Capital
PFLT
$689M
| $302K | ﹤0.01% |
31,500
+4,200
| +15% | +$50.5K |
|
|
HYZN
4069
PUT
DELISTED
Hyzon Motors Inc. Class A Common Stock
HYZN
| $302K | ﹤0.01% |
3,556
+2,948
| +485% | +$387K |
|
4070
CALL
Capricor Therapeutics
CAPR
$223M
| $301K | ﹤0.01% |
50,300
+28,400
| +130% | +$145K |
|
|
CPRX
4071
CALL
DELISTED
Catalyst Pharmaceutical
CPRX
| $301K | ﹤0.01% |
23,500
+19,000
| +422% | +$225K |
|
4072
PUT
abrdn Physical Silver Shares ETF
SIVR
$4.02B
| $301K | ﹤0.01% |
16,500
+14,700
| +817% | +$272K |
|
4073
CALL
Champion Homes
SKY
$4.37B
| $301K | ﹤0.01% |
5,700
+1,400
| +33% | +$81.6K |
|
4074
Ambev
ABEV
$48.1B
| $300K | ﹤0.01% |
106,352
+25,563
| +32% | +$72.5K |
|
4075
Teucrium Sugar Fund
CANE
$74.6M
| $300K | ﹤0.01% |
34,656
-13,101
| -27% | -$117K |
|
Similar funds
Simplex Trading's Q3 2022 Portfolio in Review
As of Q3 2022, Simplex Trading held 11,570 positions worth $88.5B, down 6% from $94.1B the previous quarter. Its ten largest holdings account for 38% of the portfolio.
Simplex Trading's Q3 2022 filing shows 1,564 new, 4,281 increased, 3,851 reduced and 1,575 closed positions. Its largest new stake was Microsoft: 432,062 shares worth $101M. The largest sale was Apple, an estimated $467M.
By sector, the portfolio is most concentrated in Technology at 0.51% of assets, down from 0.84% a quarter earlier, followed by Financials and Consumer Discretionary.
- Simplex Trading's largest Q3 2022 buy was Microsoft: 432,062 shares worth $101M.
- Simplex Trading added most to NVIDIA in Q3 2022, an estimated $85.9M increase.
- Simplex Trading's biggest Q3 2022 reduction was Apple, cutting an estimated $467M.
- Simplex Trading fully exited iShares Core S&P 500 ETF in Q3 2022, selling an estimated $34.3M.
- Simplex Trading's ten largest holdings make up 38% of its $88.5B portfolio in Q3 2022.
- Simplex Trading opened 1,564 new positions and closed 1,575 in Q3 2022.
- Simplex Trading's portfolio value fell 6% quarter-over-quarter to $88.5B.
Based on Simplex Trading's 13F filing for Q3 2022, filed 4 Nov 2022.