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 | |
|---|---|---|---|---|---|---|
|
AMRN
1501
PUT
Amarin Corp
AMRN
$284M
| $2.07M | ﹤0.01% |
245
+105
| +75% | +$12.6K |
|
1502
PUT
Interactive Brokers
IBKR
$40.9B
| $2.06M | ﹤0.01% |
1,704
+664
| +64% | +$8.28K |
|
|
MFA
1503
PUT
MFA Financial
MFA
$929M
| $2.06M | ﹤0.01% |
1,919
+1,517
| +377% | +$16.3K |
|
|
DCP
1504
CALL
DELISTED
DCP Midstream, LP
DCP
| $2.05M | ﹤0.01% |
1,839
-342
| -16% | -$4.14K |
|
1505
PUT
Paychex
PAYX
$40.4B
| $2.05M | ﹤0.01% |
257
+10
| +4% | +$751 |
|
|
BCLI
1506
CALL
DELISTED
BRAINSTORM CELL THERAPUTC
BCLI
| $2.04M | ﹤0.01% |
81
+36
| +80% | +$7.37K |
|
|
LFC
1507
PUT
DELISTED
China Life Insurance Company Ltd.
LFC
| $2.04M | ﹤0.01% |
1,805
+1,415
| +363% | +$16.9K |
|
|
MITT
1508
PUT
TPG Mortgage Investment Trust
MITT
$230M
| $2.04M | ﹤0.01% |
2,462
+2,245
| +1,035% | +$19.8K |
|
1509
CALL
Neurocrine Biosciences
NBIX
$17.7B
| $2.04M | ﹤0.01% |
212
+19
| +10% | +$2.2K |
|
|
CS
1510
PUT
DELISTED
Credit Suisse Group
CS
| $2.04M | ﹤0.01% |
2,045
-975
| -32% | -$10.4K |
|
|
NUAN
1511
CALL
DELISTED
Nuance Communications, Inc.
NUAN
| $2.04M | ﹤0.01% |
614
+63
| +11% | +$1.83K |
|
1512
CALL
Devon Energy
DVN
$51.9B
| $2.03M | ﹤0.01% |
2,148
-160
| -7% | -$1.68K |
|
1513
PG&E
PCG
$47.8B
| $2.02M | ﹤0.01% |
215,493
-224,383
| -51% | -$2.08M |
|
1514
Verizon
VZ
$194B
| $2.02M | ﹤0.01% |
34,018
+14,520
| +74% | +$844K |
|
1515
Fastly Inc
FSLY
$3.17B
| $2.02M | ﹤0.01% |
21,588
+2,748
| +15% | +$238K |
|
1516
CALL
L3Harris
LHX
$55.9B
| $2.02M | ﹤0.01% |
119
-371
| -76% | -$65.1K |
|
1517
CALL
O-I Glass
OI
$1.39B
| $2.02M | ﹤0.01% |
1,909
+824
| +76% | +$8.81K |
|
1518
CALL
IQVIA
IQV
$34.7B
| $2.02M | ﹤0.01% |
128
+10
| +8% | +$1.57K |
|
1519
CALL
Regions Financial
RF
$26.3B
| $2.02M | ﹤0.01% |
1,749
+125
| +8% | +$1.39K |
|
1520
ProShares VIX Short-Term Futures ETF
VIXY
$211M
| $2.01M | ﹤0.01% |
+1,232
| New | +$2.24M |
|
|
CHU
1521
PUT
DELISTED
China Unicom (HONG KONG) Limited
CHU
| $2.01M | ﹤0.01% |
3,075
+1,712
| +126% | +$11.2K |
|
1522
CALL
Innovative Industrial Properties
IIPR
$1.78B
| $2.01M | ﹤0.01% |
162
+23
| +17% | +$2.57K |
|
1523
CALL
America Movil
AMX
$78.1B
| $2.01M | ﹤0.01% |
1,608
+176
| +12% | +$2.23K |
|
1524
Elevance Health
ELV
$81.9B
| $2.01M | ﹤0.01% |
7,473
+3,488
| +88% | +$939K |
|
1525
PUT
Ingersoll Rand
IR
$33B
| $2M | ﹤0.01% |
563
+471
| +512% | +$15.8K |
|
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.