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
|
+$102M |
| 2 |
TSMC
TSM
|
+$27.8M |
| 3 |
JPMorgan Chase
JPM
|
+$22.4M |
| 4 |
Boeing
BA
|
+$19.4M |
| 5 |
ExxonMobil
XOM
|
+$14.7M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
SPDR Gold Trust
GLD
|
+$95.5M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$79.6M |
| 3 |
Tesla
TSLA
|
+$75.3M |
| 4 |
NVIDIA
NVDA
|
+$51.6M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
+$40.5M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Consumer Discretionary | 0.53% |
| 2 | Technology | 0.4% |
| 3 | Healthcare | 0.22% |
| 4 | Financials | 0.21% |
| 5 | Communication Services | 0.18% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
3501
Avis
CAR
$5.78B
| $328K | ﹤0.01% |
12,469
+5,469
| +78% | +$165K |
|
3502
PUT
Eagle Materials
EXP
$6.69B
| $328K | ﹤0.01% |
38
-31
| -45% | -$2.5K |
|
3503
PUT
KNOT Offshore Partners
KNOP
$353M
| $328K | ﹤0.01% |
255
+211
| +480% | +$2.81K |
|
3504
CALL
Parsons
PSN
$6.36B
| $328K | ﹤0.01% |
98
+90
| +1,125% | +$3.11K |
|
3505
Vanguard Financials ETF
VFH
$13.5B
| $328K | ﹤0.01% |
+5,609
| New | +$333K |
|
|
ISEE
3506
PUT
DELISTED
IVERIC bio, Inc. Common Stock
ISEE
| $328K | ﹤0.01% |
582
+375
| +181% | +$1.79K |
|
|
RUTH
3507
DELISTED
Ruth's Hospitality Group, Inc.
RUTH
| $327K | ﹤0.01% |
29,625
-4,847
| -14% | -$43.8K |
|
3508
PUT
Omeros
OMER
$821M
| $326K | ﹤0.01% |
323
+130
| +67% | +$1.67K |
|
3509
CALL
Opendoor
OPEN
$3.71B
| $326K | ﹤0.01% |
+178
| New | +$2.13K |
|
3510
PUT
Rackspace Technology
RXT
$980M
| $326K | ﹤0.01% |
+169
| New | +$3.09K |
|
|
SCS
3511
PUT
DELISTED
Steelcase
SCS
| $326K | ﹤0.01% |
323
+129
| +66% | +$1.39K |
|
|
TRIL
3512
DELISTED
Trillium Therapeutics Inc.
TRIL
| $326K | ﹤0.01% |
22,962
-36,141
| -61% | -$360K |
|
3513
Lamb Weston
LW
$7.3B
| $325K | ﹤0.01% |
+4,907
| New | +$314K |
|
|
FIRY
3514
Firy Inc
FIRY
$130M
| $325K | ﹤0.01% |
+1,336
| New | +$307K |
|
|
MACK
3515
CALL
DELISTED
Merrimack Pharmaceuticals, Inc.
MACK
| $325K | ﹤0.01% |
813
+701
| +626% | +$2.58K |
|
3516
PUT
Brunswick
BC
$5.24B
| $324K | ﹤0.01% |
55
-39
| -41% | -$2.49K |
|
3517
PUT
Upland Software
UPLD
$13.1M
| $324K | ﹤0.01% |
9
+4
| +80% | +$1.44K |
|
|
MDP
3518
PUT
DELISTED
Meredith Corporation
MDP
| $324K | ﹤0.01% |
247
+35
| +17% | +$489 |
|
3519
PUT
Ares Management
ARES
$28.8B
| $323K | ﹤0.01% |
80
-23
| -22% | -$918 |
|
3520
PUT
Federal Realty Investment Trust
FRT
$11B
| $323K | ﹤0.01% |
44
+28
| +175% | +$2.21K |
|
3521
PUT
Pinnacle Financial Partners Inc
PNFP
$15.6B
| $323K | ﹤0.01% |
+91
| New | +$3.62K |
|
|
NAK
3522
Northern Dynasty Minerals
NAK
$857M
| $322K | ﹤0.01% |
328,728
+48,825
| +17% | +$67.1K |
|
3523
Century Communities
CCS
$2.03B
| $321K | ﹤0.01% |
7,595
+6,098
| +407% | +$223K |
|
3524
PUT
Costamare
CMRE
$1.89B
| $321K | ﹤0.01% |
529
+385
| +267% | +$1.97K |
|
3525
PUT
Southern Copper
SCCO
$141B
| $321K | ﹤0.01% |
77
+50
| +185% | +$2.08K |
|
Similar funds
Simplex Trading's Q3 2020 Portfolio in Review
As of Q3 2020, Simplex Trading held 9,056 positions worth $73.5B, up 17% from $62.7B the previous quarter. Its ten largest holdings account for 43% of the portfolio.
Simplex Trading's Q3 2020 filing shows 1,403 new, 3,135 increased, 3,122 reduced and 1,191 closed positions. Its largest new stake was Goldman Sachs: 60,397 shares worth $12.1M. The largest sale was SPDR Gold Trust, an estimated $95.5M.
By sector, the portfolio is most concentrated in Consumer Discretionary at 0.53% of assets, up from 0.47% a quarter earlier, followed by Technology and Healthcare.
- Simplex Trading's largest Q3 2020 buy was Goldman Sachs: 60,397 shares worth $12.1M.
- Simplex Trading added most to Amazon in Q3 2020, an estimated $102M increase.
- Simplex Trading's biggest Q3 2020 reduction was SPDR Gold Trust, cutting an estimated $95.5M.
- Simplex Trading fully exited iShares MSCI EAFE ETF in Q3 2020, selling an estimated $40.5M.
- Simplex Trading's ten largest holdings make up 43% of its $73.5B portfolio in Q3 2020.
- Simplex Trading opened 1,403 new positions and closed 1,191 in Q3 2020.
- Simplex Trading's portfolio value rose 17% quarter-over-quarter to $73.5B.
Based on Simplex Trading's 13F filing for Q3 2020, filed 14 Oct 2020.