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 | |
|---|---|---|---|---|---|---|
1376
CALL
Direxion Daily S&P Oil & Gas Exp. & Prod. Bull 2X ETF
GUSH
$251M
| $1.75M | ﹤0.01% |
6,824
+6,721
| +6,525% | +$1.05M |
|
1377
ProShares UltraPro QQQ
TQQQ
$32.2B
| $1.75M | ﹤0.01% |
+294,560
| New | +$3.08M |
|
|
NBIS
1378
Nebius Group N.V.
NBIS
$56.1B
| $1.75M | ﹤0.01% |
51,519
+11,000
| +27% | +$454K |
|
1379
CALL
Fair Isaac
FICO
$28B
| $1.75M | ﹤0.01% |
57
+28
| +97% | +$10.3K |
|
1380
CALL
Corpay
CPAY
$23.8B
| $1.75M | ﹤0.01% |
94
-153
| -62% | -$42.2K |
|
1381
CALL
Travel + Leisure Co
TNL
$4.5B
| $1.75M | ﹤0.01% |
807
+677
| +521% | +$28.2K |
|
1382
PUT
Factset
FDS
$8.68B
| $1.75M | ﹤0.01% |
67
-25
| -27% | -$6.8K |
|
1383
CALL
Vanguard FTSE Europe ETF
VGK
$29.8B
| $1.75M | ﹤0.01% |
435
+100
| +30% | +$5.3K |
|
|
CLDR
1384
CALL
DELISTED
Cloudera, Inc.
CLDR
| $1.75M | ﹤0.01% |
2,219
-724
| -25% | -$7.07K |
|
|
XIFR
1385
CALL
XPLR Infrastructure LP
XIFR
$1.18B
| $1.75M | ﹤0.01% |
406
+98
| +32% | +$5.19K |
|
1386
PUT
Raymond James Financial
RJF
$31.9B
| $1.74M | ﹤0.01% |
414
+246
| +146% | +$13.9K |
|
1387
Universal Display
OLED
$3.71B
| $1.74M | ﹤0.01% |
+13,228
| New | +$2.28M |
|
1388
CALL
Jabil
JBL
$33.7B
| $1.74M | ﹤0.01% |
709
-108
| -13% | -$3.77K |
|
1389
Virgin Galactic
SPCE
$332M
| $1.74M | ﹤0.01% |
5,896
+3,067
| +108% | +$1.17M |
|
1390
PUT
Canadian Natural Resources
CNQ
$98B
| $1.74M | ﹤0.01% |
2,622
+1,628
| +164% | +$19.4K |
|
|
CRON
1391
CALL
Cronos Group
CRON
$1.02B
| $1.74M | ﹤0.01% |
3,061
-1,128
| -27% | -$7.5K |
|
1392
Agilent Technologies
A
$39.5B
| $1.73M | ﹤0.01% |
24,221
+4,247
| +21% | +$341K |
|
1393
BioMarin Pharmaceuticals
BMRN
$11.4B
| $1.73M | ﹤0.01% |
20,477
+5,414
| +36% | +$466K |
|
1394
CALL
Globus Medical
GMED
$10.2B
| $1.73M | ﹤0.01% |
407
+331
| +436% | +$16.4K |
|
|
OILD
1395
DELISTED
ProShares UltraPro 3x Short Crude Oil ETF
OILD
| $1.73M | ﹤0.01% |
+40,238
| New | +$916K |
|
|
WRK
1396
CALL
DELISTED
WestRock Company
WRK
| $1.73M | ﹤0.01% |
612
+336
| +122% | +$12.1K |
|
1397
PUT
Zurn Elkay Water Solutions
ZWS
$8.05B
| $1.72M | ﹤0.01% |
1,578
+540
| +52% | +$7.88K |
|
|
AVYA
1398
CALL
DELISTED
Avaya Holdings Corp. Common Stock
AVYA
| $1.72M | ﹤0.01% |
2,121
+1,614
| +318% | +$19.2K |
|
1399
Vornado Realty Trust
VNO
$7.34B
| $1.71M | ﹤0.01% |
+47,356
| New | +$2.7M |
|
|
SMAR
1400
CALL
DELISTED
Smartsheet Inc.
SMAR
| $1.71M | ﹤0.01% |
413
+170
| +70% | +$7.72K |
|
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.