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 | |
|---|---|---|---|---|---|---|
2851
CALL
Sprouts Farmers Market
SFM
$7.31B
| $843K | ﹤0.01% |
30,400
-5,900
| -16% | -$168K |
|
2852
CALL
Bionano Genomics
BNGO
$12.5M
| $841K | ﹤0.01% |
767
+47
| +7% | +$62.1K |
|
2853
PUT
Western Union
WU
$2.62B
| $841K | ﹤0.01% |
62,300
-29,800
| -32% | -$467K |
|
2854
Lightspeed Commerce
LSPD
$1.4B
| $840K | ﹤0.01% |
47,828
+2,533
| +6% | +$50.6K |
|
2855
CALL
Sabra Healthcare REIT
SBRA
$5.65B
| $840K | ﹤0.01% |
64,100
+44,500
| +227% | +$657K |
|
|
SIX
2856
PUT
DELISTED
Six Flags Entertainment Corp.
SIX
| $840K | ﹤0.01% |
47,500
+23,700
| +100% | +$535K |
|
2857
Bentley Systems
BSY
$10.9B
| $838K | ﹤0.01% |
27,401
+26,303
| +2,396% | +$962K |
|
|
RIDE
2858
CALL
DELISTED
Lordstown Motors Corp. Class A Common Stock
RIDE
| $834K | ﹤0.01% |
30,387
+21,760
| +252% | +$693K |
|
2859
Methanex
MEOH
$4.12B
| $833K | ﹤0.01% |
+26,140
| New | +$948K |
|
2860
CALL
PVH
PVH
$3.99B
| $833K | ﹤0.01% |
18,600
+3,300
| +22% | +$196K |
|
|
ARNC
2861
DELISTED
Arconic Corporation
ARNC
| $832K | ﹤0.01% |
48,830
+14,950
| +44% | +$388K |
|
2862
Tencent Music
TME
$15.5B
| $831K | ﹤0.01% |
204,913
+645
| +0.3% | +$2.93K |
|
2863
PUT
Invesco DB Base Metals Fund
DBB
$305M
| $830K | ﹤0.01% |
44,400
-93,200
| -68% | -$1.77M |
|
2864
RTX Corp
RTX
$293B
| $830K | ﹤0.01% |
+10,141
| New | +$918K |
|
2865
PUT
UGI
UGI
$7.98B
| $830K | ﹤0.01% |
25,700
+22,900
| +818% | +$904K |
|
|
LFG
2866
CALL
DELISTED
Archaea Energy Inc.
LFG
| $830K | ﹤0.01% |
46,100
+41,500
| +902% | +$730K |
|
2867
CALL
Ambev
ABEV
$48.7B
| $829K | ﹤0.01% |
293,100
+3,500
| +1% | +$9.93K |
|
2868
PUT
Shift4
FOUR
$4.28B
| $829K | ﹤0.01% |
18,600
-25,100
| -57% | -$1.05M |
|
2869
PUT
Extreme Networks
EXTR
$3.89B
| $827K | ﹤0.01% |
+63,300
| New | +$798K |
|
|
ETRN
2870
CALL
DELISTED
Equitrans Midstream Corporation Common Stock
ETRN
| $827K | ﹤0.01% |
110,600
+51,500
| +87% | +$431K |
|
2871
CALL
Annexon
ANNX
$827M
| $826K | ﹤0.01% |
133,700
-132,300
| -50% | -$715K |
|
2872
CALL
GoPro
GPRO
$121M
| $825K | ﹤0.01% |
167,500
+18,300
| +12% | +$109K |
|
|
EMBJ
2873
Embraer S.A. ADS
EMBJ
$12.3B
| $824K | ﹤0.01% |
95,837
-48,965
| -34% | -$486K |
|
2874
PUT
Cheesecake Factory
CAKE
$4.35B
| $822K | ﹤0.01% |
28,100
-19,100
| -40% | -$580K |
|
|
MYOV
2875
PUT
DELISTED
Myovant Sciences Ltd.
MYOV
| $822K | ﹤0.01% |
45,800
+19,600
| +75% | +$313K |
|
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.