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 | |
|---|---|---|---|---|---|---|
|
CHGX
1751
PUT
DELISTED
AXS Change Finance ESG ETF
CHGX
| $2.53M | ﹤0.01% |
48,900
+44,800
| +1,093% | +$1.24M |
|
1752
PUT
Jack in the Box
JACK
$278M
| $2.53M | ﹤0.01% |
34,200
+32,000
| +1,455% | +$2.43M |
|
1753
PUT
Blackstone Mortgage Trust
BXMT
$2.82B
| $2.53M | ﹤0.01% |
108,500
+78,400
| +260% | +$2.27M |
|
1754
CALL
DoubleVerify
DV
$1.62B
| $2.53M | ﹤0.01% |
92,600
+92,400
| +46,200% | +$2.38M |
|
1755
Fomento Económico Mexicano
FMX
$43.3B
| $2.53M | ﹤0.01% |
40,287
+33,854
| +526% | +$2.13M |
|
1756
CALL
Liquidia Corp
LQDA
$7.67B
| $2.52M | ﹤0.01% |
464,300
+451,500
| +3,527% | +$2.53M |
|
|
DFTX
1757
CALL
Definium Therapeutics
DFTX
$5.73B
| $2.52M | ﹤0.01% |
721,500
+691,260
| +2,286% | +$6.64M |
|
1758
PUT
Schwab US Broad Market ETF
SCHB
$42.8B
| $2.52M | ﹤0.01% |
122,400
+21,600
| +21% | +$336K |
|
1759
PUT
Vulcan Materials
VMC
$36.3B
| $2.52M | ﹤0.01% |
16,000
+10,100
| +171% | +$1.64M |
|
|
EXE
1760
Expand Energy Corp
EXE
$21.9B
| $2.51M | ﹤0.01% |
+26,677
| New | +$2.51M |
|
1761
Invesco DB US Dollar Index Bearish Fund
UDN
$107M
| $2.51M | ﹤0.01% |
146,842
+122,559
| +505% | +$2.18M |
|
1762
CALL
Zions Bancorporation
ZION
$10.1B
| $2.51M | ﹤0.01% |
49,400
+4,600
| +10% | +$252K |
|
1763
CALL
Ferguson
FERG
$44.7B
| $2.51M | ﹤0.01% |
24,400
-3,600
| -13% | -$420K |
|
1764
CALL
Griffon
GFF
$4.16B
| $2.51M | ﹤0.01% |
85,000
+84,800
| +42,400% | +$2.58M |
|
1765
PUT
Phillips Edison & Co
PECO
$5.48B
| $2.51M | ﹤0.01% |
89,400
+77,700
| +664% | +$2.55M |
|
1766
PUT
Diageo
DEO
$46.2B
| $2.5M | ﹤0.01% |
14,700
-57,200
| -80% | -$10.3M |
|
1767
CALL
Lightspeed Commerce
LSPD
$1.3B
| $2.49M | ﹤0.01% |
141,900
+46,800
| +49% | +$934K |
|
1768
PUT
Public Storage
PSA
$60.2B
| $2.49M | ﹤0.01% |
8,500
-700
| -8% | -$228K |
|
1769
CALL
Energy Fuels
UUUU
$2.82B
| $2.48M | ﹤0.01% |
405,900
+195,900
| +93% | +$1.25M |
|
1770
PUT
Lemonade
LMND
$4.62B
| $2.48M | ﹤0.01% |
117,200
+1,600
| +1% | +$36.4K |
|
1771
CALL
Under Armour Class C
UA
$2.92B
| $2.48M | ﹤0.01% |
386,900
-518,500
| -57% | -$4.06M |
|
1772
Sibanye-Stillwater
SBSW
$5.92B
| $2.47M | ﹤0.01% |
265,222
+81,063
| +44% | +$770K |
|
1773
CALL
Valvoline
VVV
$4.97B
| $2.47M | ﹤0.01% |
97,400
+83,600
| +606% | +$2.45M |
|
|
BIG
1774
CALL
DELISTED
Big Lots, Inc.
BIG
| $2.47M | ﹤0.01% |
158,000
+18,000
| +13% | +$387K |
|
1775
PUT
Nu Holdings
NU
$68.1B
| $2.46M | ﹤0.01% |
560,300
+278,900
| +99% | +$1.28M |
|
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.