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 | |
|---|---|---|---|---|---|---|
|
CNR
3301
DELISTED
Cornerstone Building Brands, Inc.
CNR
| $386K | ﹤0.01% |
48,416
+42,030
| +658% | +$298K |
|
|
LAC
3302
CALL
DELISTED
Lithium Americas Corp. Common Shares
LAC
| $386K | ﹤0.01% |
+339
| New | +$2.42K |
|
3303
Green Plains
GPRE
$1.15B
| $385K | ﹤0.01% |
24,910
-9,106
| -27% | -$125K |
|
3304
Amplify Junior Silver Miners ETF
SILJ
$3.29B
| $385K | ﹤0.01% |
27,904
-571
| -2% | -$8.38K |
|
3305
CALL
Webster Financial
WBS
$12.5B
| $385K | ﹤0.01% |
146
-12
| -8% | -$325 |
|
|
CONE
3306
CALL
DELISTED
CyrusOne Inc Common Stock
CONE
| $385K | ﹤0.01% |
55
-6
| -10% | -$471 |
|
3307
Anavex Life Sciences
AVXL
$232M
| $384K | ﹤0.01% |
+84,397
| New | +$363K |
|
3308
CALL
Essent Group
ESNT
$6.12B
| $384K | ﹤0.01% |
104
-26
| -20% | -$929 |
|
3309
Invesco Mortgage Capital
IVR
$762M
| $384K | ﹤0.01% |
14,172
+14,167
| +283,340% | +$437K |
|
3310
CALL
Sinclair Inc
SBGI
$974M
| $384K | ﹤0.01% |
200
-66
| -25% | -$1.33K |
|
3311
PUT
Viper Energy
VNOM
$8.4B
| $384K | ﹤0.01% |
511
-558
| -52% | -$5.41K |
|
3312
CALL
IAMGOLD
IAG
$8.5B
| $383K | ﹤0.01% |
1,002
+238
| +31% | +$1.03K |
|
3313
CALL
Rayonier
RYN
$6.52B
| $383K | ﹤0.01% |
160
+130
| +433% | +$3.24K |
|
3314
PUT
Aegon
AEG
$13.5B
| $382K | ﹤0.01% |
1,621
+2
| +0.1% | +$5 |
|
3315
CALL
Brink's
BCO
$4.86B
| $382K | ﹤0.01% |
93
+77
| +481% | +$3.39K |
|
3316
PUT
Broadridge
BR
$17.7B
| $382K | ﹤0.01% |
29
+1
| +4% | +$134 |
|
3317
PUT
Fair Isaac
FICO
$29.7B
| $382K | ﹤0.01% |
9
-25
| -74% | -$10.6K |
|
|
TPC
3318
PUT
Tutor Perini Cor
TPC
$4.51B
| $382K | ﹤0.01% |
344
-202
| -37% | -$2.48K |
|
|
JOBS
3319
CALL
DELISTED
51job Inc
JOBS
| $382K | ﹤0.01% |
49
+48
| +4,800% | +$3.33K |
|
3320
PUT
Cardlytics
CDLX
$21.7M
| $381K | ﹤0.01% |
5
+1
| +25% | +$727 |
|
3321
CALL
SK Telecom
SKM
$13.5B
| $381K | ﹤0.01% |
103
+76
| +281% | +$2.69K |
|
3322
CALL
Marriott Vacations Worldwide
VAC
$3.4B
| $381K | ﹤0.01% |
42
-45
| -52% | -$4.08K |
|
3323
ProShares Ultra NASDAQ Biotechnology
BIB
$82.8M
| $380K | ﹤0.01% |
5,444
+1,129
| +26% | +$80.1K |
|
3324
Coca-Cola
KO
$362B
| $380K | ﹤0.01% |
7,700
-178,329
| -96% | -$8.58M |
|
3325
CALL
PBF Energy
PBF
$7.43B
| $380K | ﹤0.01% |
668
-171
| -20% | -$1.42K |
|
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.