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 | |
|---|---|---|---|---|---|---|
3401
CALL
Pinnacle West Capital
PNW
$13.1B
| $403K | ﹤0.01% |
5,300
-100
| -2% | -$7.15K |
|
3402
CALL
Smith & Nephew
SNN
$13.6B
| $403K | ﹤0.01% |
15,000
-123,000
| -89% | -$3.09M |
|
3403
CALL
Loews
L
$24.8B
| $402K | ﹤0.01% |
6,900
+3,100
| +82% | +$173K |
|
3404
Banco Bradesco
BBD
$38.6B
| $401K | ﹤0.01% |
139,297
-138,473
| -50% | -$449K |
|
3405
CALL
East-West Bancorp
EWBC
$17.9B
| $401K | ﹤0.01% |
6,100
+4,300
| +239% | +$294K |
|
|
LTC
3406
PUT
LTC Properties
LTC
$2.17B
| $401K | ﹤0.01% |
11,300
+7,800
| +223% | +$297K |
|
3407
PUT
Entegris
ENTG
$18B
| $400K | ﹤0.01% |
6,100
-35,800
| -85% | -$2.64M |
|
3408
PUT
Honda
HMC
$39.1B
| $400K | ﹤0.01% |
17,500
-11,700
| -40% | -$271K |
|
|
JBGS
3409
PUT
JBG SMITH
JBGS
$835M
| $400K | ﹤0.01% |
+21,100
| New | +$408K |
|
|
CYBR
3410
DELISTED
CyberArk
CYBR
| $399K | ﹤0.01% |
3,083
-3,093
| -50% | -$447K |
|
3411
PUT
Teledyne Technologies
TDY
$29.8B
| $399K | ﹤0.01% |
1,000
+900
| +900% | +$351K |
|
3412
PUT
Pilgrim's Pride
PPC
$7.24B
| $398K | ﹤0.01% |
16,800
+11,000
| +190% | +$262K |
|
|
BERY
3413
CALL
DELISTED
Berry Global Group, Inc.
BERY
| $398K | ﹤0.01% |
7,187
-3,485
| -33% | -$171K |
|
3414
CALL
Insperity
NSP
$2B
| $397K | ﹤0.01% |
3,500
+1,000
| +40% | +$113K |
|
|
RENT
3415
Rent the Runway
RENT
$110M
| $397K | ﹤0.01% |
6,514
+5,498
| +541% | +$223K |
|
3416
CALL
Banco Santander
SAN
$198B
| $397K | ﹤0.01% |
134,900
-2,400
| -2% | -$6.55K |
|
3417
Cracker Barrel
CBRL
$1.15B
| $396K | ﹤0.01% |
+4,187
| New | +$436K |
|
|
MACK
3418
CALL
DELISTED
Merrimack Pharmaceuticals, Inc.
MACK
| $396K | ﹤0.01% |
34,600
+21,700
| +168% | +$179K |
|
|
NTR
3419
CALL
DELISTED
NEW YORK MORTGAGE TRUST INC
NTR
| $396K | ﹤0.01% |
154,800
-1,000
| -0.6% | -$2.56K |
|
3420
CALL
Clearway Energy Class C
CWEN
$4.83B
| $395K | ﹤0.01% |
12,500
-77,600
| -86% | -$2.62M |
|
3421
Kinross Gold
KGC
$27.7B
| $395K | ﹤0.01% |
96,683
-115,621
| -54% | -$457K |
|
3422
PUT
Lloyds Banking Group
LYG
$86.5B
| $395K | ﹤0.01% |
179,600
-26,100
| -13% | -$53.7K |
|
|
ETRN
3423
DELISTED
Equitrans Midstream Corporation Common Stock
ETRN
| $395K | ﹤0.01% |
59,027
-4,138
| -7% | -$32.1K |
|
|
SGFY
3424
PUT
DELISTED
Signify Health, Inc.
SGFY
| $395K | ﹤0.01% |
13,800
-20,600
| -60% | -$595K |
|
3425
PUT
Donnelley Financial Solutions
DFIN
$1.32B
| $394K | ﹤0.01% |
10,200
+10,000
| +5,000% | +$375K |
|
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.