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 | |
|---|---|---|---|---|---|---|
2201
CALL
Theravance Biopharma
TBPH
$874M
| $1.33M | ﹤0.01% |
118,700
+27,300
| +30% | +$287K |
|
|
SVC
2202
CALL
Service Properties Trust
SVC
$1.1B
| $1.33M | ﹤0.01% |
36,440
-39,140
| -52% | -$1.44M |
|
2203
PUT
Teradata
TDC
$2.68B
| $1.33M | ﹤0.01% |
39,400
-5,900
| -13% | -$190K |
|
2204
CALL
ADMA Biologics
ADMA
$1.92B
| $1.32M | ﹤0.01% |
341,600
+72,800
| +27% | +$225K |
|
|
GLOP
2205
PUT
DELISTED
GASLOG PARTNERS LP
GLOP
| $1.32M | ﹤0.01% |
198,900
+79,300
| +66% | +$583K |
|
2206
CALL
HF Sinclair
DINO
$15.9B
| $1.32M | ﹤0.01% |
25,500
-27,400
| -52% | -$1.58M |
|
2207
CALL
NOV
NOV
$7.45B
| $1.32M | ﹤0.01% |
63,300
+13,400
| +27% | +$281K |
|
|
HCP
2208
DELISTED
HashiCorp, Inc. Class A Common Stock
HCP
| $1.32M | ﹤0.01% |
48,353
+40,845
| +544% | +$1.16M |
|
2209
PUT
Buckle
BKE
$2.19B
| $1.32M | ﹤0.01% |
29,100
+20,500
| +238% | +$828K |
|
2210
CALL
Krispy Kreme
DNUT
$543M
| $1.32M | ﹤0.01% |
127,800
+118,700
| +1,304% | +$1.62M |
|
2211
CALL
Public Storage
PSA
$60.2B
| $1.32M | ﹤0.01% |
4,700
-23,900
| -84% | -$6.97M |
|
2212
PUT
Taylor Morrison
TMHC
| $1.31M | ﹤0.01% |
43,300
+13,300
| +44% | +$371K |
|
2213
PUT
Aramark
ARMK
$15B
| $1.31M | ﹤0.01% |
43,905
+12,050
| +38% | +$332K |
|
2214
PUT
Arrowhead Research
ARWR
$12.1B
| $1.31M | ﹤0.01% |
32,300
+25,900
| +405% | +$858K |
|
|
AKRO
2215
CALL
DELISTED
Akero Therapeutics
AKRO
| $1.31M | ﹤0.01% |
23,900
-5,600
| -19% | -$240K |
|
2216
Healthcare Realty
HR
$7.42B
| $1.31M | ﹤0.01% |
67,884
-18,231
| -21% | -$358K |
|
2217
PUT
Alaska Air
ALK
$5.15B
| $1.3M | ﹤0.01% |
30,400
-4,800
| -14% | -$211K |
|
2218
PUT
Omnicom Group
OMC
$22.7B
| $1.3M | ﹤0.01% |
16,000
-12,800
| -44% | -$950K |
|
|
FYBR
2219
CALL
DELISTED
Frontier Communications
FYBR
| $1.3M | ﹤0.01% |
51,100
-146,300
| -74% | -$3.51M |
|
2220
Newmont
NEM
$98.2B
| $1.3M | ﹤0.01% |
27,575
-37,963
| -58% | -$1.69M |
|
|
ICPT
2221
PUT
DELISTED
Intercept Pharmaceuticals, Inc.
ICPT
| $1.3M | ﹤0.01% |
105,100
-9,400
| -8% | -$133K |
|
2222
CALL
Aecom
ACM
$9.07B
| $1.3M | ﹤0.01% |
15,300
-9,800
| -39% | -$770K |
|
2223
ReNew
RNW
$2.24B
| $1.3M | ﹤0.01% |
+236,177
| New | +$1.38M |
|
2224
PUT
Levi Strauss
LEVI
$9.44B
| $1.3M | ﹤0.01% |
83,600
-13,100
| -14% | -$204K |
|
|
SKX
2225
PUT
DELISTED
Skechers
SKX
| $1.3M | ﹤0.01% |
30,900
-500
| -2% | -$19.2K |
|
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.