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 |
SPDR Gold Trust
GLD
|
+$31.6M |
| 2 |
iShares Silver Trust
SLV
|
+$28.1M |
| 3 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$25.1M |
| 4 |
JPMorgan Chase
JPM
|
+$24.5M |
| 5 |
Direxion Daily Junior Gold Miners Index Bull 2X ETF
JNUG
|
+$24M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Alphabet (Google) Class C
GOOG
|
+$51.6M |
| 2 |
Amazon
AMZN
|
+$47.4M |
| 3 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$44.7M |
| 4 |
Netflix
NFLX
|
+$38.3M |
| 5 |
NVIDIA
NVDA
|
+$31.1M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.49% |
| 2 | Healthcare | 0.33% |
| 3 | Consumer Discretionary | 0.32% |
| 4 | Financials | 0.16% |
| 5 | Communication Services | 0.16% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
GENZ
1776
VanEck Digital Native Economy ETF
GENZ
$16.3M
| $1.11M | ﹤0.01% |
+43,050
| New | +$1.58M |
|
1777
PUT
Heron Therapeutics
HRTX
$86.3M
| $1.11M | ﹤0.01% |
949
+639
| +206% | +$12K |
|
1778
CALL
Liberty Latin America Class C
LILAK
$1.5B
| $1.11M | ﹤0.01% |
1,246
-262
| -17% | -$3.53K |
|
1779
CALL
First Majestic Silver
AG
$8.05B
| $1.11M | ﹤0.01% |
1,797
+59
| +3% | +$528 |
|
1780
PUT
Chemours
CC
$2.59B
| $1.11M | ﹤0.01% |
1,254
-173
| -12% | -$2.49K |
|
1781
CALL
Waters Corp
WAT
$36.8B
| $1.11M | ﹤0.01% |
61
-18
| -23% | -$3.8K |
|
1782
Welltower
WELL
$178B
| $1.11M | ﹤0.01% |
+24,260
| New | +$1.79M |
|
1783
PUT
Lincoln National
LNC
$7.91B
| $1.11M | ﹤0.01% |
421
-143
| -25% | -$6.79K |
|
1784
ProShares UltraShort QQQ
QID
$268M
| $1.11M | ﹤0.01% |
+2,388
| New | +$1.09M |
|
|
BITA
1785
CALL
DELISTED
Bitauto Holdings Limited
BITA
| $1.11M | ﹤0.01% |
1,067
-277
| -21% | -$3.87K |
|
1786
PUT
Progressive
PGR
$124B
| $1.11M | ﹤0.01% |
150
-530
| -78% | -$40.9K |
|
|
CCMP
1787
PUT
DELISTED
CMC Materials, Inc. Common Stock
CCMP
| $1.11M | ﹤0.01% |
97
-16
| -14% | -$2.23K |
|
1788
PUT
Nutrien
NTR
$32.7B
| $1.11M | ﹤0.01% |
326
-439
| -57% | -$17.6K |
|
1789
Tyler Technologies
TYL
$12.2B
| $1.1M | ﹤0.01% |
+3,718
| New | +$1.15M |
|
1790
PUT
Wolfspeed
WOLF
$1.2B
| $1.1M | ﹤0.01% |
310
+101
| +48% | +$4.54K |
|
1791
CALL
Acadia Pharmaceuticals
ACAD
$4.25B
| $1.1M | ﹤0.01% |
260
-496
| -66% | -$20.4K |
|
1792
WisdomTree India Earnings Fund ETF
EPI
$2.02B
| $1.1M | ﹤0.01% |
67,678
+20,486
| +43% | +$457K |
|
|
HRC
1793
CALL
DELISTED
HILL-ROM HOLDINGS, INC.
HRC
| $1.1M | ﹤0.01% |
109
-230
| -68% | -$23.8K |
|
1794
Visa
V
$677B
| $1.09M | ﹤0.01% |
+6,802
| New | +$1.28M |
|
|
EBIX
1795
PUT
DELISTED
Ebix Inc
EBIX
| $1.09M | ﹤0.01% |
722
+438
| +154% | +$12.5K |
|
|
1796
CALL
Heron Therapeutics
HRTX
$86.3M
| $1.09M | ﹤0.01% |
931
+862
| +1,249% | +$16.2K |
|
1797
CALL
Under Armour Class C
UA
$2.92B
| $1.09M | ﹤0.01% |
1,259
-852
| -40% | -$12.2K |
|
1798
CALL
Fortune Brands Innovations
FBIN
$6.12B
| $1.09M | ﹤0.01% |
295
+234
| +384% | +$12.4K |
|
1799
CALL
Halozyme
HALO
$9.72B
| $1.09M | ﹤0.01% |
605
-901
| -60% | -$17.1K |
|
1800
PUT
Old Dominion Freight Line
ODFL
$48.5B
| $1.09M | ﹤0.01% |
166
-14
| -8% | -$930 |
|
Similar funds
Simplex Trading's Q1 2020 Portfolio in Review
As of Q1 2020, Simplex Trading held 8,783 positions worth $56.7B, up 24% from $45.7B the previous quarter. Its ten largest holdings account for 50% of the portfolio.
Simplex Trading's Q1 2020 filing shows 1,512 new, 3,249 increased, 2,705 reduced and 1,159 closed positions. Its largest new stake was SPDR Gold Trust: 212,230 shares worth $31.4M. The largest sale was Alphabet (Google) Class C, an estimated $51.6M.
By sector, the portfolio is most concentrated in Technology at 0.49% of assets, down from 0.75% a quarter earlier, followed by Healthcare and Consumer Discretionary.
- Simplex Trading's largest Q1 2020 buy was SPDR Gold Trust: 212,230 shares worth $31.4M.
- Simplex Trading added most to JPMorgan Chase in Q1 2020, an estimated $24.5M increase.
- Simplex Trading's biggest Q1 2020 reduction was Amazon, cutting an estimated $47.4M.
- Simplex Trading fully exited Alphabet (Google) Class C in Q1 2020, selling an estimated $51.6M.
- Simplex Trading's ten largest holdings make up 50% of its $56.7B portfolio in Q1 2020.
- Simplex Trading opened 1,512 new positions and closed 1,159 in Q1 2020.
- Simplex Trading's portfolio value rose 24% quarter-over-quarter to $56.7B.
Based on Simplex Trading's 13F filing for Q1 2020, filed 29 Apr 2020.