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 | |
|---|---|---|---|---|---|---|
2726
Lyft
LYFT
$5.39B
| $768K | ﹤0.01% |
+69,758
| New | +$841K |
|
2727
PUT
Edgewell Personal Care
EPC
$1.27B
| $766K | ﹤0.01% |
19,900
-1,100
| -5% | -$43.7K |
|
2728
PUT
Hertz
HTZ
$572M
| $766K | ﹤0.01% |
137,600
-18,900
| -12% | -$318K |
|
2729
Moody's
MCO
$81.7B
| $765K | ﹤0.01% |
2,748
-9,737
| -78% | -$2.66M |
|
2730
PUT
Ardelyx
ARDX
$1.24B
| $763K | ﹤0.01% |
267,800
+138,800
| +108% | +$235K |
|
2731
PUT
Fortuna Silver Mines
FSM
$2.59B
| $763K | ﹤0.01% |
203,500
+6,900
| +4% | +$22.8K |
|
2732
CALL
NeoGenomics
NEO
$1.81B
| $762K | ﹤0.01% |
82,500
+64,600
| +361% | +$602K |
|
2733
Direxion Daily S&P 500 Bull 3x ETF
SPXL
$6.52B
| $762K | ﹤0.01% |
12,283
+11,929
| +3,370% | +$770K |
|
2734
iShares Core S&P Mid-Cap ETF
IJH
$123B
| $761K | ﹤0.01% |
15,750
-7,850
| -33% | -$379K |
|
2735
Navios Maritime Partners
NMM
$2.25B
| $760K | ﹤0.01% |
29,304
-8,589
| -23% | -$219K |
|
2736
ProShares UltraPro QQQ
TQQQ
$31.7B
| $759K | ﹤0.01% |
87,782
-4,460,254
| -98% | -$45.3M |
|
|
VTYX
2737
CALL
DELISTED
Ventyx Biosciences
VTYX
| $757K | ﹤0.01% |
23,100
+13,600
| +143% | +$403K |
|
2738
NCR Voyix
VYX
$1.06B
| $757K | ﹤0.01% |
52,732
+52,406
| +16,075% | +$697K |
|
|
DEN
2739
PUT
DELISTED
Denbury Inc.
DEN
| $757K | ﹤0.01% |
8,700
+8,500
| +4,250% | +$772K |
|
|
NOAH
2740
Noah Holdings
NOAH
$588M
| $756K | ﹤0.01% |
48,777
+31,661
| +185% | +$463K |
|
2741
PUT
Sigma Lithium
SGML
$1.08B
| $756K | ﹤0.01% |
26,800
+26,200
| +4,367% | +$842K |
|
2742
ACI Worldwide
ACIW
$5.72B
| $755K | ﹤0.01% |
32,856
+23,832
| +264% | +$513K |
|
2743
Community Health Systems
CYH
$385M
| $755K | ﹤0.01% |
174,808
-116,722
| -40% | -$359K |
|
2744
PUT
Incyte
INCY
$23.5B
| $755K | ﹤0.01% |
9,400
-3,900
| -29% | -$298K |
|
2745
PUT
Arthur J. Gallagher & Co
AJG
$63.7B
| $754K | ﹤0.01% |
4,000
-7,100
| -64% | -$1.33M |
|
2746
CALL
Honda
HMC
$36.5B
| $754K | ﹤0.01% |
33,000
-95,600
| -74% | -$2.21M |
|
2747
Direxion Daily Junior Gold Miners Index Bull 2X ETF
JNUG
$351M
| $754K | ﹤0.01% |
20,847
+2,846
| +16% | +$90.4K |
|
|
GOGL
2748
PUT
DELISTED
Golden Ocean Group
GOGL
| $753K | ﹤0.01% |
86,700
+5,800
| +7% | +$50.4K |
|
|
AMJ
2749
DELISTED
JP Morgan Alerian MLP Index ETN 5/24/24
AMJ
| $753K | ﹤0.01% |
+34,658
| New | +$761K |
|
2750
CALL
Anavex Life Sciences
AVXL
$222M
| $751K | ﹤0.01% |
81,200
-26,100
| -24% | -$279K |
|
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.