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 | |
|---|---|---|---|---|---|---|
3026
CALL
Americold
COLD
$4.17B
| $569K | ﹤0.01% |
20,100
-13,200
| -40% | -$355K |
|
|
APEN
3027
CALL
DELISTED
Apollo Endosurgery, Inc.
APEN
| $567K | ﹤0.01% |
56,900
+38,900
| +216% | +$290K |
|
|
AUY
3028
DELISTED
Yamana Gold, Inc.
AUY
| $567K | ﹤0.01% |
102,295
-77,667
| -43% | -$392K |
|
|
DNB
3029
CALL
DELISTED
Dun & Bradstreet
DNB
| $566K | ﹤0.01% |
46,200
+300
| +0.7% | +$3.85K |
|
3030
ZIM Integrated Shipping Services
ZIM
$2.96B
| $566K | ﹤0.01% |
+32,969
| New | +$733K |
|
|
VMW
3031
DELISTED
VMware, Inc
VMW
| $566K | ﹤0.01% |
4,617
+4,479
| +3,246% | +$516K |
|
3032
PUT
Marriott Vacations Worldwide
VAC
$3.4B
| $565K | ﹤0.01% |
4,200
+900
| +27% | +$125K |
|
3033
CALL
Alto Ingredients
ALTO
$349M
| $564K | ﹤0.01% |
196,100
+10,600
| +6% | +$37.7K |
|
3034
Cintas
CTAS
$84.4B
| $564K | ﹤0.01% |
+5,000
| New | +$541K |
|
|
HBI
3035
DELISTED
Hanesbrands
HBI
| $564K | ﹤0.01% |
88,775
+58,011
| +189% | +$399K |
|
|
JOAN
3036
PUT
DELISTED
JOANN, Inc. Common Stock
JOAN
| $564K | ﹤0.01% |
198,100
+188,000
| +1,861% | +$888K |
|
|
ASRT
3037
CALL
DELISTED
Assertio
ASRT
| $563K | ﹤0.01% |
8,740
-4,280
| -33% | -$188K |
|
|
GRMN
3038
Garmin
GRMN
$46.8B
| $563K | ﹤0.01% |
6,101
-17,002
| -74% | -$1.5M |
|
3039
PUT
MSC Industrial Direct
MSM
$7.07B
| $563K | ﹤0.01% |
6,900
+3,500
| +103% | +$285K |
|
3040
CALL
Relmada Therapeutics
RLMD
$546M
| $563K | ﹤0.01% |
161,600
+42,600
| +36% | +$374K |
|
|
DOC
3041
CALL
DELISTED
PHYSICIANS REALTY TRUST
DOC
| $562K | ﹤0.01% |
38,900
-21,100
| -35% | -$306K |
|
3042
iShares US Medical Devices ETF
IHI
$3.06B
| $561K | ﹤0.01% |
10,680
-15,349
| -59% | -$779K |
|
3043
PUT
UBS Group
UBS
$172B
| $561K | ﹤0.01% |
30,100
-5,900
| -16% | -$100K |
|
|
VZIO
3044
CALL
DELISTED
VIZIO Holding Corp.
VZIO
| $561K | ﹤0.01% |
75,800
-72,400
| -49% | -$701K |
|
3045
PUT
LegalZoom.com
LZ
$1.3B
| $560K | ﹤0.01% |
72,400
+42,700
| +144% | +$371K |
|
|
JNPR
3046
PUT
DELISTED
Juniper Networks
JNPR
| $559K | ﹤0.01% |
17,500
+1,600
| +10% | +$48.5K |
|
3047
CALL
Amplify Energy
AMPY
$155M
| $557K | ﹤0.01% |
63,400
+14,600
| +30% | +$124K |
|
3048
CALL
Moody's
MCO
$84.2B
| $557K | ﹤0.01% |
2,000
+500
| +33% | +$137K |
|
|
OBE
3049
CALL
Obsidian Energy
OBE
$660M
| $557K | ﹤0.01% |
83,900
+45,700
| +120% | +$355K |
|
3050
CALL
PRA Group
PRAA
$683M
| $557K | ﹤0.01% |
16,500
+13,000
| +371% | +$428K |
|
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.