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 | |
|---|---|---|---|---|---|---|
1626
CALL
Five Below
FIVE
$11.2B
| $2.96M | ﹤0.01% |
21,500
-37,800
| -64% | -$4.96M |
|
1627
CALL
AdaptHealth
AHCO
$1.46B
| $2.96M | ﹤0.01% |
157,500
+148,800
| +1,710% | +$3.06M |
|
1628
CALL
ZipRecruiter
ZIP
$318M
| $2.96M | ﹤0.01% |
179,100
-140,800
| -44% | -$2.45M |
|
1629
PUT
DuPont de Nemours
DD
$18.6B
| $2.95M | ﹤0.01% |
46,605
-91,696
| -66% | -$6.54M |
|
1630
CALL
United States Gasoline Fund
UGA
$142M
| $2.95M | ﹤0.01% |
55,900
+32,800
| +142% | +$1.91M |
|
1631
CALL
Dutch Bros
BROS
$8.78B
| $2.95M | ﹤0.01% |
94,600
+14,900
| +19% | +$561K |
|
1632
PUT
TechnipFMC
FTI
$30.6B
| $2.94M | ﹤0.01% |
347,900
+85,500
| +33% | +$674K |
|
1633
PUT
Zevra Therapeutics
ZVRA
$563M
| $2.94M | ﹤0.01% |
470,900
+107,800
| +30% | +$610K |
|
1634
Zoom
ZM
$25.8B
| $2.94M | ﹤0.01% |
39,896
-102,214
| -72% | -$9.73M |
|
1635
CALL
CoStar Group
CSGP
$11.3B
| $2.93M | ﹤0.01% |
42,100
-8,700
| -17% | -$604K |
|
1636
CALL
Takeda Pharmaceutical
TAK
$55.1B
| $2.93M | ﹤0.01% |
226,000
+7,900
| +4% | +$110K |
|
1637
PUT
Owens Corning
OC
$11.5B
| $2.92M | ﹤0.01% |
37,200
+30,800
| +481% | +$2.59M |
|
1638
PUT
Casella Waste Systems
CWST
$5.69B
| $2.92M | ﹤0.01% |
38,200
+38,100
| +38,100% | +$3.05M |
|
1639
CALL
TG Therapeutics
TGTX
$8.58B
| $2.92M | ﹤0.01% |
492,400
+46,200
| +10% | +$303K |
|
1640
PUT
Camping World
CWH
$363M
| $2.91M | ﹤0.01% |
115,100
+27,800
| +32% | +$773K |
|
1641
PUT
Restaurant Brands International
QSR
$25.1B
| $2.91M | ﹤0.01% |
54,800
+500
| +0.9% | +$28.2K |
|
1642
Ralph Lauren
RL
$22.2B
| $2.91M | ﹤0.01% |
+34,309
| New | +$3.23M |
|
1643
PUT
Truist Financial
TFC
$63.2B
| $2.91M | ﹤0.01% |
66,900
+300
| +0.5% | +$14.4K |
|
1644
CALL
Teekay Tankers
TNK
$2.63B
| $2.9M | ﹤0.01% |
105,500
+57,400
| +119% | +$1.36M |
|
1645
PUT
Landstar System
LSTR
$6.8B
| $2.9M | ﹤0.01% |
20,100
+20,000
| +20,000% | +$2.98M |
|
1646
PUT
Kornit Digital
KRNT
$706M
| $2.9M | ﹤0.01% |
109,000
+108,000
| +10,800% | +$3.11M |
|
1647
CALL
UBS Group
UBS
$170B
| $2.9M | ﹤0.01% |
199,900
+96,700
| +94% | +$1.55M |
|
1648
PUT
Floor & Decor
FND
$5.81B
| $2.89M | ﹤0.01% |
41,200
+25,000
| +154% | +$2.01M |
|
1649
PUT
Lattice Semiconductor
LSCC
$17.6B
| $2.89M | ﹤0.01% |
58,800
+14,500
| +33% | +$803K |
|
1650
PUT
TD Synnex
SNX
$19.4B
| $2.89M | ﹤0.01% |
35,600
+29,100
| +448% | +$2.78M |
|
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.