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 | |
|---|---|---|---|---|---|---|
601
PUT
Seagate
STX
$207B
| $15.5M | 0.02% |
291,000
+105,500
| +57% | +$7.62M |
|
602
Linde
LIN
$234B
| $15.4M | 0.02% |
+57,291
| New | +$16.5M |
|
603
PUT
HP
HPQ
$22.4B
| $15.4M | 0.02% |
619,500
+306,700
| +98% | +$9.42M |
|
604
Cameco
CCJ
$38.9B
| $15.4M | 0.02% |
579,462
+245,515
| +74% | +$6.28M |
|
605
CALL
Philip Morris
PM
$298B
| $15.3M | 0.02% |
184,800
-121,400
| -40% | -$11.6M |
|
606
CALL
Emerson Electric
EMR
$81.2B
| $15.3M | 0.02% |
208,800
-49,000
| -19% | -$4.07M |
|
607
PUT
DexCom
DXCM
$27.2B
| $15.3M | 0.02% |
189,800
+72,000
| +61% | +$6.1M |
|
608
PUT
AutoNation
AN
$6.86B
| $15.3M | 0.02% |
149,900
+64,000
| +75% | +$7.51M |
|
609
State Street SPDR S&P Oil & Gas Exploration & Production ETF
XOP
$3.45B
| $15.3M | 0.02% |
122,331
-60,762
| -33% | -$8.02M |
|
610
CALL
Norwegian Cruise Line
NCLH
$8.59B
| $15.2M | 0.02% |
1,340,300
-359,100
| -21% | -$4.73M |
|
611
CALL
TJX Companies
TJX
$170B
| $15.2M | 0.02% |
245,000
-207,900
| -46% | -$13.1M |
|
612
PUT
Okta
OKTA
$23.7B
| $15.2M | 0.02% |
267,600
-49,500
| -16% | -$4.26M |
|
613
PUT
Bath & Body Works
BBWI
$3.9B
| $15.2M | 0.02% |
469,500
+58,100
| +14% | +$2.05M |
|
614
PUT
MetLife
MET
$59.5B
| $15.2M | 0.02% |
249,700
-60,600
| -20% | -$3.87M |
|
615
PUT
W.W. Grainger
GWW
$64.6B
| $15.2M | 0.02% |
31,000
+6,500
| +27% | +$3.42M |
|
616
CALL
AstraZeneca
AZN
$261B
| $15.1M | 0.02% |
137,450
+22,600
| +20% | +$2.87M |
|
617
Petrobras
PBR
$122B
| $15M | 0.02% |
1,214,530
+966,636
| +390% | +$12.8M |
|
618
CALL
Enovix
ENVX
$947M
| $15M | 0.02% |
933,486
+851,086
| +1,033% | +$12.6M |
|
619
CALL
S&P Global
SPGI
$124B
| $15M | 0.02% |
49,000
-209,400
| -81% | -$74.9M |
|
620
PUT
Mondelez International
MDLZ
$77.1B
| $15M | 0.02% |
272,800
-34,300
| -11% | -$2.13M |
|
621
PUT
MSCI
MSCI
$40.2B
| $14.8M | 0.02% |
35,100
+32,400
| +1,200% | +$14.8M |
|
|
BBBY
622
PUT
DELISTED
Bed Bath & Beyond Inc
BBBY
| $14.8M | 0.02% |
2,428,200
+1,969,300
| +429% | +$16M |
|
623
CALL
CF Industries
CF
$19.5B
| $14.8M | 0.02% |
153,500
+13,300
| +9% | +$1.3M |
|
624
CALL
Enterprise Products Partners
EPD
$83.9B
| $14.7M | 0.02% |
618,600
-45,400
| -7% | -$1.17M |
|
|
625
CALL
Linde
LIN
$234B
| $14.6M | 0.02% |
54,200
-9,600
| -15% | -$2.76M |
|
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.