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 | |
|---|---|---|---|---|---|---|
|
BGFV
3376
CALL
DELISTED
Big 5 Sporting Goods
BGFV
| $411K | ﹤0.01% |
46,600
-121,700
| -72% | -$1.4M |
|
3377
Capri Holdings
CPRI
$1.85B
| $411K | ﹤0.01% |
+7,172
| New | +$362K |
|
3378
CALL
WisdomTree US Total Dividend Fund
DTD
$1.66B
| $411K | ﹤0.01% |
11,000
-5,200
| -32% | -$312K |
|
3379
PUT
Getty Images
GETY
$170M
| $411K | ﹤0.01% |
74,100
-70,400
| -49% | -$394K |
|
3380
Sprouts Farmers Market
SFM
$7.34B
| $411K | ﹤0.01% |
+12,709
| New | +$396K |
|
|
AY
3381
PUT
DELISTED
Atlantica Sustainable Infrastructure plc Ordinary Shares
AY
| $411K | ﹤0.01% |
15,900
+9,300
| +141% | +$251K |
|
3382
CALL
AppFolio
APPF
$6.41B
| $410K | ﹤0.01% |
3,900
+2,800
| +255% | +$311K |
|
|
ARR
3383
Armour Residential REIT
ARR
$2.01B
| $410K | ﹤0.01% |
14,596
-3,071
| -17% | -$83.8K |
|
3384
PUT
Garrett Motion
GTX
$5.6B
| $410K | ﹤0.01% |
53,900
-3,800
| -7% | -$26.7K |
|
3385
Toyota
TM
$220B
| $410K | ﹤0.01% |
3,006
-475
| -14% | -$66.2K |
|
3386
CALL
UDR
UDR
$12.9B
| $410K | ﹤0.01% |
10,600
-10,000
| -49% | -$395K |
|
|
SRNE
3387
CALL
DELISTED
Sorrento Therapeutics, Inc.
SRNE
| $409K | ﹤0.01% |
462,200
+50,300
| +12% | +$66.7K |
|
|
EBIX
3388
DELISTED
Ebix Inc
EBIX
| $409K | ﹤0.01% |
20,518
-61,240
| -75% | -$1.18M |
|
3389
CALL
ABM Industries
ABM
$2.91B
| $408K | ﹤0.01% |
9,200
+6,900
| +300% | +$303K |
|
|
ORGN
3390
CALL
DELISTED
Origin Materials
ORGN
| $406K | ﹤0.01% |
2,937
-833
| -22% | -$133K |
|
|
LOGC
3391
CALL
DELISTED
ContextLogic
LOGC
| $406K | ﹤0.01% |
27,783
-16,827
| -38% | -$346K |
|
3392
CALL
Invesco CurrencyShares Swiss Franc Trust
FXF
$409M
| $405K | ﹤0.01% |
4,200
+2,900
| +223% | +$269K |
|
3393
Markel Group
MKL
$25.6B
| $405K | ﹤0.01% |
+308
| New | +$381K |
|
3394
CALL
News Corp Class B
NWS
$17.3B
| $405K | ﹤0.01% |
22,300
+17,900
| +407% | +$315K |
|
|
VNET
3395
PUT
VNET Group
VNET
$1.9B
| $405K | ﹤0.01% |
71,600
+14,200
| +25% | +$73.1K |
|
|
SJI
3396
CALL
DELISTED
South Jersey Industries, Inc.
SJI
| $405K | ﹤0.01% |
11,400
+9,800
| +613% | +$339K |
|
3397
CALL
Ocugen
OCGN
$416M
| $404K | ﹤0.01% |
311,200
-82,900
| -21% | -$129K |
|
3398
PUT
State Street Multi-Asset Real Return ETF
RLY
$1.26B
| $404K | ﹤0.01% |
9,900
-57,100
| -85% | -$1.6M |
|
3399
CALL
Aemetis
AMTX
$103M
| $403K | ﹤0.01% |
101,900
+17,100
| +20% | +$97.1K |
|
3400
iShares S&P GSCI Commodity-Indexed Trust
GSG
$978M
| $403K | ﹤0.01% |
19,025
+9,318
| +96% | +$200K |
|
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.