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 |
Amazon
AMZN
|
+$170M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$71.3M |
| 3 |
AT&T
T
|
+$44.2M |
| 4 |
Meta Platforms (Facebook)
META
|
+$37.1M |
| 5 |
iShares MSCI Emerging Markets ETF
EEM
|
+$34.4M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Microsoft
MSFT
|
+$94.3M |
| 2 |
JPMorgan Chase
JPM
|
+$68.2M |
| 3 |
Citigroup
C
|
+$62.8M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
+$50.9M |
| 5 |
SPDR Gold Trust
GLD
|
+$46.3M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Consumer Discretionary | 0.38% |
| 2 | Technology | 0.35% |
| 3 | Communication Services | 0.24% |
| 4 | Healthcare | 0.2% |
| 5 | Consumer Staples | 0.13% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1476
Intrepid Potash
IPI
$460M
| $3.38M | ﹤0.01% |
116,970
+96,257
| +465% | +$3.57M |
|
1477
CALL
Liberty Media Series A
FWONA
$22.3B
| $3.37M | ﹤0.01% |
90,242
+17,756
| +24% | +$903K |
|
1478
PUT
Axos Financial
AX
$5.45B
| $3.37M | ﹤0.01% |
88,100
-159,900
| -64% | -$6.09M |
|
1479
CALL
Cognex
CGNX
$10.3B
| $3.36M | ﹤0.01% |
71,300
-10,200
| -13% | -$478K |
|
1480
VanEck Gold Miners ETF
GDX
$23B
| $3.35M | ﹤0.01% |
116,801
-906,776
| -89% | -$24.2M |
|
1481
CALL
Hartford Financial Services
HIG
$38.5B
| $3.34M | ﹤0.01% |
44,000
-5,400
| -11% | -$389K |
|
1482
CALL
Penske Automotive Group
PAG
$14.3B
| $3.33M | ﹤0.01% |
29,000
-47,500
| -62% | -$5.42M |
|
1483
Twilio
TWLO
$29.1B
| $3.32M | ﹤0.01% |
+67,826
| New | +$3.86M |
|
1484
PUT
Riot Platforms
RIOT
$8.52B
| $3.31M | ﹤0.01% |
977,700
+700
| +0.1% | +$3.61K |
|
1485
PUT
InMode
INMD
$872M
| $3.31M | ﹤0.01% |
92,800
-60,400
| -39% | -$2.1M |
|
1486
Transocean
RIG
$5.92B
| $3.31M | ﹤0.01% |
726,192
+19,597
| +3% | +$75.6K |
|
1487
PUT
DaVita
DVA
$15.1B
| $3.31M | ﹤0.01% |
44,300
-17,500
| -28% | -$1.36M |
|
1488
CALL
Nice
NICE
$5.29B
| $3.31M | ﹤0.01% |
17,200
+2,100
| +14% | +$404K |
|
1489
PUT
Cullen/Frost Bankers
CFR
$10.3B
| $3.3M | ﹤0.01% |
24,700
+19,900
| +415% | +$2.83M |
|
1490
CALL
Reliance Steel & Aluminium
RS
$20.8B
| $3.3M | ﹤0.01% |
16,300
+12,700
| +353% | +$2.53M |
|
1491
CALL
Carrier Global
CARR
$57.2B
| $3.29M | ﹤0.01% |
79,900
-38,700
| -33% | -$1.57M |
|
1492
Philip Morris
PM
$301B
| $3.29M | ﹤0.01% |
32,532
+15,609
| +92% | +$1.47M |
|
|
FRC
1493
PUT
DELISTED
First Republic Bank
FRC
| $3.29M | ﹤0.01% |
27,000
-28,300
| -51% | -$3.45M |
|
1494
CALL
Keurig Dr Pepper
KDP
$40.4B
| $3.28M | ﹤0.01% |
91,900
-110,500
| -55% | -$4.14M |
|
1495
CALL
AGCO
AGCO
$8.78B
| $3.27M | ﹤0.01% |
23,600
-3,100
| -12% | -$382K |
|
1496
PUT
Barclays
BCS
$94.1B
| $3.27M | ﹤0.01% |
419,700
-75,900
| -15% | -$553K |
|
|
CGC
1497
CALL
Canopy Growth
CGC
$375M
| $3.27M | ﹤0.01% |
141,700
+19,950
| +16% | +$615K |
|
1498
CALL
Motorola Solutions
MSI
$69.4B
| $3.27M | ﹤0.01% |
12,700
+5,400
| +74% | +$1.35M |
|
1499
CALL
Check Point Software Technologies
CHKP
$13.3B
| $3.27M | ﹤0.01% |
25,900
+4,500
| +21% | +$562K |
|
1500
CALL
Asbury Automotive
ABG
$4.19B
| $3.26M | ﹤0.01% |
18,200
+17,900
| +5,967% | +$2.99M |
|
Similar funds
Simplex Trading's Q4 2022 Portfolio in Review
As of Q4 2022, Simplex Trading held 11,206 positions worth $91.9B, up 3.9% from $88.5B the previous quarter. Its ten largest holdings account for 34% of the portfolio.
Simplex Trading's Q4 2022 filing shows 1,219 new, 3,365 increased, 4,370 reduced and 1,942 closed positions. Its largest new stake was iShares MSCI Emerging Markets ETF: 932,756 shares worth $35.4M. The largest sale was Microsoft, an estimated $94.3M.
By sector, the portfolio is most concentrated in Consumer Discretionary at 0.38% of assets, up from 0.3% a quarter earlier, followed by Technology and Communication Services.
- Simplex Trading's largest Q4 2022 buy was iShares MSCI Emerging Markets ETF: 932,756 shares worth $35.4M.
- Simplex Trading added most to Amazon in Q4 2022, an estimated $170M increase.
- Simplex Trading's biggest Q4 2022 reduction was Microsoft, cutting an estimated $94.3M.
- Simplex Trading fully exited JPMorgan Chase in Q4 2022, selling an estimated $68.2M.
- Simplex Trading's ten largest holdings make up 34% of its $91.9B portfolio in Q4 2022.
- Simplex Trading opened 1,219 new positions and closed 1,942 in Q4 2022.
- Simplex Trading's portfolio value rose 3.9% quarter-over-quarter to $91.9B.
Based on Simplex Trading's 13F filing for Q4 2022, filed 2 Feb 2023.