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 | |
|---|---|---|---|---|---|---|
3276
CALL
Popular Inc
BPOP
$10.9B
| $444K | ﹤0.01% |
6,700
+2,300
| +52% | +$160K |
|
3277
Nutrien
NTR
$32.4B
| $444K | ﹤0.01% |
6,090
-54,979
| -90% | -$4.34M |
|
|
HA
3278
CALL
DELISTED
Hawaiian Holdings, Inc.
HA
| $444K | ﹤0.01% |
43,300
-100
| -0.2% | -$1.34K |
|
|
SAFE
3279
DELISTED
Safehold Inc.
SAFE
| $444K | ﹤0.01% |
15,520
+627
| +4% | +$17.9K |
|
3280
PUT
CenterPoint Energy
CNP
$28.8B
| $443K | ﹤0.01% |
14,800
| – | – |
|
3281
CALL
First Horizon
FHN
$12.1B
| $443K | ﹤0.01% |
18,100
-9,200
| -34% | -$223K |
|
3282
SSR Mining
SSRM
$5.45B
| $443K | ﹤0.01% |
28,281
-8,907
| -24% | -$131K |
|
|
ICPT
3283
CALL
DELISTED
Intercept Pharmaceuticals, Inc.
ICPT
| $442K | ﹤0.01% |
35,800
-115,800
| -76% | -$1.64M |
|
3284
PUT
United States Brent Oil Fund
BNO
$755M
| $441K | ﹤0.01% |
15,600
-18,300
| -54% | -$529K |
|
3285
CALL
CleanSpark
CLSK
$3.6B
| $441K | ﹤0.01% |
216,200
-106,900
| -33% | -$277K |
|
3286
Carlisle Companies
CSL
$13.8B
| $441K | ﹤0.01% |
1,874
-2,131
| -53% | -$548K |
|
3287
PUT
Hillman Solutions
HLMN
$1.58B
| $441K | ﹤0.01% |
61,200
+800
| +1% | +$6.02K |
|
3288
PUT
Quanta Services
PWR
$93.1B
| $441K | ﹤0.01% |
3,100
-53,000
| -94% | -$7.53M |
|
3289
CALL
Vuzix
VUZI
$193M
| $441K | ﹤0.01% |
121,400
+11,300
| +10% | +$51.7K |
|
|
CONX
3290
CALL
DELISTED
CONX Corp. Class A Common Stock
CONX
| $441K | ﹤0.01% |
44,400
-71,500
| -62% | -$717K |
|
|
CHS
3291
CALL
DELISTED
Chicos FAS, Inc.
CHS
| $441K | ﹤0.01% |
89,700
-97,900
| -52% | -$551K |
|
3292
State Street SPDR Bloomberg 1-3 Month T-Bill ETF
BIL
$47.1B
| $440K | ﹤0.01% |
4,820
-26,300
| -85% | -$2.41M |
|
3293
Gerdau
GGB
$9.48B
| $440K | ﹤0.01% |
100,208
+14,828
| +17% | +$63.8K |
|
3294
CALL
Gaotu Techedu
GOTU
$374M
| $440K | ﹤0.01% |
186,800
-153,100
| -45% | -$221K |
|
|
MOMO
3295
PUT
Hello Group
MOMO
$869M
| $440K | ﹤0.01% |
49,100
-62,500
| -56% | -$371K |
|
3296
CALL
NexGen Energy
NXE
$6.17B
| $440K | ﹤0.01% |
99,500
+30,100
| +43% | +$126K |
|
3297
CALL
SkinHealth Systems
SKIN
$96.9M
| $440K | ﹤0.01% |
48,400
-31,100
| -39% | -$336K |
|
3298
CALL
Upwork
UPWK
$1.14B
| $440K | ﹤0.01% |
42,200
-13,800
| -25% | -$170K |
|
3299
PUT
Vanguard ESG US Corporate Bond ETF
VCEB
$1.18B
| $440K | ﹤0.01% |
5,100
+800
| +19% | +$48.2K |
|
|
RETA
3300
PUT
DELISTED
Reata Pharmaceuticals, Inc. Class A Common Stock
RETA
| $440K | ﹤0.01% |
11,600
-174,800
| -94% | -$6.02M |
|
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.