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 | |
|---|---|---|---|---|---|---|
2526
PUT
Yum! Brands
YUM
$40.7B
| $1.13M | ﹤0.01% |
10,600
-7,900
| -43% | -$917K |
|
2527
Vanguard High Dividend Yield ETF
VYM
$81.3B
| $1.13M | ﹤0.01% |
+11,859
| New | +$1.23M |
|
2528
DoorDash
DASH
$80.3B
| $1.12M | ﹤0.01% |
22,743
-49,738
| -69% | -$3.32M |
|
2529
PUT
Gogo Inc
GOGO
$540M
| $1.12M | ﹤0.01% |
92,800
+21,300
| +30% | +$324K |
|
2530
Carlisle Companies
CSL
$13.8B
| $1.12M | ﹤0.01% |
4,005
+3,504
| +699% | +$1M |
|
2531
PUT
Bread Financial
BFH
$4.29B
| $1.12M | ﹤0.01% |
32,200
+18,000
| +127% | +$705K |
|
2532
CALL
Bakkt Inc
BKKT
$338M
| $1.12M | ﹤0.01% |
19,656
+3,656
| +23% | +$245K |
|
2533
Sabesp
SBS
$19.9B
| $1.12M | ﹤0.01% |
634,226
+147,925
| +30% | +$251K |
|
2534
PUT
Hertz
HTZ
$632M
| $1.12M | ﹤0.01% |
156,500
+4,400
| +3% | +$82.5K |
|
2535
CALL
Sweetgreen
SG
$733M
| $1.12M | ﹤0.01% |
60,500
+27,600
| +84% | +$470K |
|
|
JPGE
2536
PUT
DELISTED
JPMorgan Diversified Return Global Equity ETF
JPGE
| $1.12M | ﹤0.01% |
22,000
+3,700
| +20% | +$188K |
|
2537
PUT
Digital Turbine
APPS
$1.04B
| $1.12M | ﹤0.01% |
77,600
-73,700
| -49% | -$1.41M |
|
|
HBI
2538
PUT
DELISTED
Hanesbrands
HBI
| $1.12M | ﹤0.01% |
160,700
+113,500
| +240% | +$1.11M |
|
|
ARNC
2539
PUT
DELISTED
Arconic Corporation
ARNC
| $1.11M | ﹤0.01% |
65,300
-6,300
| -9% | -$163K |
|
2540
Peabody Energy
BTU
$2.81B
| $1.11M | ﹤0.01% |
44,735
-128,258
| -74% | -$2.88M |
|
2541
CALL
W.P. Carey
WPC
$17B
| $1.11M | ﹤0.01% |
16,234
-6,636
| -29% | -$543K |
|
2542
CALL
Anavex Life Sciences
AVXL
$232M
| $1.11M | ﹤0.01% |
107,300
-6,800
| -6% | -$71.8K |
|
2543
CALL
Tenet Healthcare
THC
$21B
| $1.1M | ﹤0.01% |
21,400
+3,700
| +21% | +$220K |
|
2544
Par Pacific Holdings
PARR
$3.94B
| $1.1M | ﹤0.01% |
67,181
+55,112
| +457% | +$935K |
|
2545
CALL
PetMed Express
PETS
$42.1M
| $1.1M | ﹤0.01% |
56,500
-9,800
| -15% | -$208K |
|
|
KRTX
2546
PUT
DELISTED
Karuna Therapeutics, Inc. Common Stock
KRTX
| $1.1M | ﹤0.01% |
4,900
-13,500
| -73% | -$2.73M |
|
2547
CALL
Hecla Mining
HL
$10.2B
| $1.1M | ﹤0.01% |
279,500
+11,000
| +4% | +$44.8K |
|
2548
Bath & Body Works
BBWI
$4.13B
| $1.1M | ﹤0.01% |
33,737
+5,057
| +18% | +$178K |
|
|
PIPP
2549
CALL
DELISTED
Pine Island Acquisition Corp.
PIPP
| $1.1M | ﹤0.01% |
110,100
-110,500
| -50% | -$1.1M |
|
|
AMED
2550
CALL
DELISTED
Amedisys
AMED
| $1.09M | ﹤0.01% |
11,300
-13,400
| -54% | -$1.6M |
|
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.