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 | |
|---|---|---|---|---|---|---|
3801
American Vanguard Corp
AVD
$74.1M
| $284K | ﹤0.01% |
13,103
+441
| +3% | +$9.83K |
|
3802
PUT
Mativ Holdings
MATV
$482M
| $284K | ﹤0.01% |
13,600
+2,000
| +17% | +$43.4K |
|
|
EGLE
3803
CALL
DELISTED
Eagle Bulk Shipping Inc.
EGLE
| $284K | ﹤0.01% |
5,700
+1,300
| +30% | +$65.2K |
|
|
CHMI
3804
CALL
Cherry Hill Mortgage Investment Corp
CHMI
$81.9M
| $283K | ﹤0.01% |
48,800
+44,000
| +917% | +$247K |
|
|
RC
3805
Ready Capital
RC
$261M
| $283K | ﹤0.01% |
25,441
+5,695
| +29% | +$68.5K |
|
3806
Visteon
VC
$2.85B
| $283K | ﹤0.01% |
2,165
+1,855
| +598% | +$247K |
|
3807
CALL
Howard Hughes
HHH
$4B
| $282K | ﹤0.01% |
3,881
-420
| -10% | -$26.7K |
|
|
VWE
3808
DELISTED
Vintage Wine Estates, Inc. Common Stock
VWE
| $282K | ﹤0.01% |
86,799
+74,374
| +599% | +$228K |
|
|
FORG
3809
PUT
DELISTED
ForgeRock, Inc.
FORG
| $282K | ﹤0.01% |
12,400
+7,600
| +158% | +$166K |
|
|
MRSH
3810
PUT
Marsh
MRSH
$91.7B
| $281K | ﹤0.01% |
1,700
+500
| +42% | +$81.8K |
|
|
SPTN
3811
CALL
DELISTED
SpartanNash
SPTN
| $281K | ﹤0.01% |
9,300
+2,100
| +29% | +$68.4K |
|
3812
CALL
System1
SST
$15M
| $281K | ﹤0.01% |
6,010
-25,470
| -81% | -$1.31M |
|
3813
XP
XP
$8.68B
| $281K | ﹤0.01% |
18,379
-32,755
| -64% | -$573K |
|
3814
CALL
Apple Hospitality REIT
APLE
$3.97B
| $280K | ﹤0.01% |
17,800
-25,400
| -59% | -$410K |
|
3815
Bloom Energy
BE
$47.5B
| $280K | ﹤0.01% |
14,656
-8,636
| -37% | -$170K |
|
3816
PUT
Destination XL Group
DXLG
$34.3M
| $280K | ﹤0.01% |
41,500
+35,900
| +641% | +$230K |
|
3817
CALL
Frontdoor
FTDR
$5.22B
| $280K | ﹤0.01% |
13,500
+13,400
| +13,400% | +$294K |
|
3818
CALL
ImmunityBio
IBRX
$7.3B
| $280K | ﹤0.01% |
55,400
-9,700
| -15% | -$53.3K |
|
3819
CALL
Woodward
WWD
$24.5B
| $280K | ﹤0.01% |
2,900
-8,600
| -75% | -$795K |
|
|
SLCA
3820
PUT
DELISTED
U.S. SILICA HOLDINGS, INC.
SLCA
| $280K | ﹤0.01% |
22,400
+16,600
| +286% | +$213K |
|
|
DCPH
3821
CALL
DELISTED
Deciphera Pharmaceuticals, Inc. Common Stock
DCPH
| $280K | ﹤0.01% |
17,100
-1,400
| -8% | -$22.8K |
|
|
CPUH
3822
PUT
DELISTED
Compute Health Acquisition Corp.
CPUH
| $280K | ﹤0.01% |
27,800
+9,700
| +54% | +$97K |
|
3823
PUT
WisdomTree US Total Dividend Fund
DTD
$1.66B
| $279K | ﹤0.01% |
4,800
-9,600
| -67% | -$576K |
|
3824
PUT
Lufax Holding
LU
$1.33B
| $279K | ﹤0.01% |
35,975
-55,150
| -61% | -$420K |
|
3825
PUT
Power Integrations
POWI
$3.3B
| $279K | ﹤0.01% |
3,900
+1,200
| +44% | +$85.6K |
|
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.