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 | |
|---|---|---|---|---|---|---|
3751
Paychex
PAYX
$42.3B
| $295K | ﹤0.01% |
2,556
-143,398
| -98% | -$16.8M |
|
3752
Petrobras Class A
PBR.A
$104B
| $295K | ﹤0.01% |
31,771
+7,410
| +30% | +$79.5K |
|
|
TBCH
3753
Turtle Beach Corp
TBCH
$258M
| $295K | ﹤0.01% |
41,259
+41,226
| +124,927% | +$323K |
|
3754
CALL
ARKO Corp
ARKO
$901M
| $294K | ﹤0.01% |
34,000
+30,500
| +871% | +$283K |
|
3755
PUT
Braze
BRZE
$2.83B
| $294K | ﹤0.01% |
10,800
+3,200
| +42% | +$89.3K |
|
|
HIVE
3756
CALL
HIVE Digital Technologies
HIVE
$760M
| $294K | ﹤0.01% |
204,300
-79,300
| -28% | -$202K |
|
3757
CALL
Option Care Health
OPCH
$3.53B
| $294K | ﹤0.01% |
9,800
+7,900
| +416% | +$245K |
|
|
VTLE
3758
PUT
DELISTED
Vital Energy
VTLE
| $294K | ﹤0.01% |
48,300
-22,700
| -32% | -$1.4M |
|
|
SILV
3759
DELISTED
SilverCrest Metals Inc. Common Shares
SILV
| $294K | ﹤0.01% |
49,128
-11,747
| -19% | -$70.1K |
|
3760
Algonquin Power & Utilities
AQN
$4.68B
| $293K | ﹤0.01% |
44,979
+12,118
| +37% | +$108K |
|
|
AGNT
3761
AGNT Inc
AGNT
$661M
| $293K | ﹤0.01% |
26,519
+24,721
| +1,375% | +$300K |
|
3762
CALL
Lindsay Corp
LNN
$1.17B
| $293K | ﹤0.01% |
1,800
+1,700
| +1,700% | +$280K |
|
|
ORGN
3763
DELISTED
Origin Materials
ORGN
| $293K | ﹤0.01% |
2,124
-402
| -16% | -$64K |
|
3764
ProShares UltraPro Short S&P 500
SPXU
$416M
| $293K | ﹤0.01% |
+870
| New | +$302K |
|
|
BREZ
3765
DELISTED
Breeze Holdings Acquisition Corp. Common Stock
BREZ
| $293K | ﹤0.01% |
28,126
-3,170
| -10% | -$32.9K |
|
3766
BGC Group
BGC
$5.73B
| $292K | ﹤0.01% |
77,583
-287,799
| -79% | -$1.14M |
|
3767
PUT
i3 Verticals
IIIV
$420M
| $292K | ﹤0.01% |
12,000
+100
| +0.8% | +$2.26K |
|
|
NGD
3768
CALL
DELISTED
New Gold Inc
NGD
| $292K | ﹤0.01% |
298,700
+108,300
| +57% | +$109K |
|
3769
AerSale
ASLE
$307M
| $291K | ﹤0.01% |
17,990
+6,875
| +62% | +$119K |
|
3770
Brookfield Renewable
BEP
$9.7B
| $291K | ﹤0.01% |
+11,520
| New | +$329K |
|
3771
Camping World
CWH
$399M
| $291K | ﹤0.01% |
13,063
-37,170
| -74% | -$964K |
|
3772
PUT
Fulgent Genetics
FLGT
$558M
| $291K | ﹤0.01% |
9,800
-10,900
| -53% | -$390K |
|
3773
CALL
ResMed
RMD
$30.3B
| $291K | ﹤0.01% |
1,400
-14,200
| -91% | -$3.12M |
|
|
PYCR
3774
DELISTED
Paycor HCM, Inc. Common Stock
PYCR
| $291K | ﹤0.01% |
+11,916
| New | +$330K |
|
|
BLDP
3775
Ballard Power Systems
BLDP
$808M
| $290K | ﹤0.01% |
60,700
+57,740
| +1,951% | +$328K |
|
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.