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 | |
|---|---|---|---|---|---|---|
|
GRMN
626
PUT
Garmin
GRMN
$46.4B
| $5.83M | 0.01% |
778
+393
| +102% | +$35.6K |
|
627
iShares TIPS Bond ETF
TIP
$14.5B
| $5.82M | 0.01% |
49,397
+26,876
| +119% | +$3.17M |
|
|
EXAS
628
PUT
DELISTED
Exact Sciences
EXAS
| $5.78M | 0.01% |
+996
| New | +$80.9K |
|
629
CALL
Parker-Hannifin
PH
$122B
| $5.77M | 0.01% |
445
+329
| +284% | +$59.6K |
|
630
Kraft Heinz
KHC
$30.8B
| $5.76M | 0.01% |
233,000
+90,770
| +64% | +$2.49M |
|
631
PUT
Elastic
ESTC
$6.1B
| $5.76M | 0.01% |
1,032
+943
| +1,060% | +$60.9K |
|
632
Mastercard
MA
$470B
| $5.75M | 0.01% |
+23,818
| New | +$7.08M |
|
|
AYX
633
CALL
DELISTED
Alteryx Inc
AYX
| $5.75M | 0.01% |
604
-457
| -43% | -$56.8K |
|
634
CALL
Incyte
INCY
$23.1B
| $5.74M | 0.01% |
784
+136
| +21% | +$10.3K |
|
635
PUT
Nucor
NUE
$53.7B
| $5.74M | 0.01% |
1,594
+1,404
| +739% | +$62.3K |
|
636
PUT
Global Payments
GPN
$21.6B
| $5.74M | 0.01% |
398
+375
| +1,630% | +$68.5K |
|
|
DISH
637
PUT
DELISTED
DISH Network Corp.
DISH
| $5.74M | 0.01% |
2,871
+371
| +15% | +$12K |
|
638
PUT
Stryker
SYK
$119B
| $5.73M | 0.01% |
344
+26
| +8% | +$5.08K |
|
639
CALL
BHP
BHP
$215B
| $5.71M | 0.01% |
1,743
+581
| +50% | +$24.3K |
|
640
Wynn Resorts
WYNN
$9.79B
| $5.68M | 0.01% |
94,336
+68,002
| +258% | +$7.62M |
|
641
PUT
Travelers Companies
TRV
$82.1B
| $5.67M | 0.01% |
571
+212
| +59% | +$26.4K |
|
|
AMRN
642
PUT
Amarin Corp
AMRN
$287M
| $5.67M | 0.01% |
708
+492
| +228% | +$163K |
|
643
CALL
Eaton
ETN
$158B
| $5.63M | 0.01% |
725
-275
| -28% | -$25.2K |
|
644
PUT
Kinder Morgan
KMI
$72.3B
| $5.63M | 0.01% |
4,044
+2,485
| +159% | +$47.3K |
|
645
PUT
Royal Gold
RGLD
$17.1B
| $5.62M | 0.01% |
641
+503
| +364% | +$51.9K |
|
646
PUT
Air Products & Chemicals
APD
$66.1B
| $5.61M | 0.01% |
281
-289
| -51% | -$65.9K |
|
|
COUP
647
PUT
DELISTED
Coupa Software Incorporated
COUP
| $5.6M | 0.01% |
401
-1,805
| -82% | -$279K |
|
648
CALL
Restaurant Brands International
QSR
$25.4B
| $5.58M | 0.01% |
1,395
+792
| +131% | +$44.8K |
|
649
Invesco CurrencyShares Euro Currency Trust
FXE
$332M
| $5.58M | 0.01% |
+53,522
| New | +$5.59M |
|
650
PUT
Motorola Solutions
MSI
$67.1B
| $5.58M | 0.01% |
420
-718
| -63% | -$120K |
|
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.