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 | |
|---|---|---|---|---|---|---|
|
HAPN
3101
CALL
Happen Inc
HAPN
$2.16B
| $529K | ﹤0.01% |
60,200
-19,500
| -24% | -$201K |
|
|
VRN
3102
DELISTED
Veren
VRN
| $529K | ﹤0.01% |
74,083
-134,744
| -65% | -$1M |
|
|
WE
3103
CALL
DELISTED
WeWork Inc.
WE
| $528K | ﹤0.01% |
9,238
-2,635
| -22% | -$247K |
|
3104
PUT
Henry Schein
HSIC
$9.64B
| $527K | ﹤0.01% |
6,600
+4,500
| +214% | +$341K |
|
3105
PUT
Regal Rexnord
RRX
$14B
| $527K | ﹤0.01% |
+4,400
| New | +$577K |
|
3106
CALL
Clover Health Investments
CLOV
$2.25B
| $526K | ﹤0.01% |
566,900
+48,000
| +9% | +$64.1K |
|
|
SGEN
3107
PUT
DELISTED
Seagen Inc. Common Stock
SGEN
| $526K | ﹤0.01% |
4,100
-6,900
| -63% | -$891K |
|
3108
CALL
Performance Food Group
PFGC
$18B
| $525K | ﹤0.01% |
9,000
-3,600
| -29% | -$196K |
|
|
PPL
3109
PUT
PPL Corp
PPL
$27.1B
| $525K | ﹤0.01% |
18,000
+2,100
| +13% | +$57.7K |
|
3110
JFrog
FROG
$9.84B
| $523K | ﹤0.01% |
24,533
+2,724
| +12% | +$61.9K |
|
3111
CALL
Kimco Realty
KIM
$17.8B
| $523K | ﹤0.01% |
24,700
+900
| +4% | +$18.9K |
|
3112
PUT
Watsco Inc
WSO
$15B
| $523K | ﹤0.01% |
2,100
-10,800
| -84% | -$2.84M |
|
3113
1-800-Flowers.com
FLWS
$245M
| $522K | ﹤0.01% |
54,634
+45,467
| +496% | +$361K |
|
3114
CALL
Infosys
INFY
$47.4B
| $522K | ﹤0.01% |
29,000
-4,100
| -12% | -$76.3K |
|
|
VVNT
3115
CALL
DELISTED
Vivint Smart Home, Inc. Class A Common Stock
VVNT
| $522K | ﹤0.01% |
43,900
+40,500
| +1,191% | +$365K |
|
3116
Bentley Systems
BSY
$10.2B
| $521K | ﹤0.01% |
14,108
-13,293
| -49% | -$482K |
|
3117
Ecolab
ECL
$76.4B
| $521K | ﹤0.01% |
+3,582
| New | +$526K |
|
3118
CALL
Vertical Aerospace
EVTL
$181M
| $521K | ﹤0.01% |
15,390
-6,240
| -29% | -$332K |
|
|
PRVB
3119
DELISTED
Provention Bio, Inc. Common Stock
PRVB
| $521K | ﹤0.01% |
49,380
+13,447
| +37% | +$109K |
|
3120
CALL
BOK Financial
BOKF
$8.58B
| $518K | ﹤0.01% |
+5,000
| New | +$507K |
|
|
JMIA
3121
CALL
Jumia Technologies
JMIA
$752M
| $517K | ﹤0.01% |
161,200
-244,900
| -60% | -$1.1M |
|
3122
CALL
Gran Tierra Energy
GTE
$238M
| $516K | ﹤0.01% |
52,130
+5,160
| +11% | +$60.7K |
|
3123
The GEO Group
GEO
$4.13B
| $515K | ﹤0.01% |
47,099
-16,690
| -26% | -$162K |
|
|
SNV
3124
CALL
DELISTED
Synovus
SNV
| $514K | ﹤0.01% |
13,700
-60,500
| -82% | -$2.4M |
|
|
ITCI
3125
CALL
DELISTED
Intra-Cellular Therapies Inc.
ITCI
| $513K | ﹤0.01% |
9,700
-11,200
| -54% | -$561K |
|
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.