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 | |
|---|---|---|---|---|---|---|
426
CALL
Crown Castle
CCI
$33.8B
| $9.86M | 0.02% |
683
+658
| +2,632% | +$98.1K |
|
427
PUT
Check Point Software Technologies
CHKP
$13.3B
| $9.86M | 0.02% |
981
+16
| +2% | +$1.71K |
|
|
VMW
428
DELISTED
VMware, Inc
VMW
| $9.86M | 0.02% |
+81,429
| New | +$11.2M |
|
429
PUT
Deere & Co
DE
$164B
| $9.82M | 0.02% |
711
-736
| -51% | -$116K |
|
|
STZ.B
430
CALL
DELISTED
CONSTELLATION BRANDS, INC. CLASS B
STZ.B
| $9.82M | 0.02% |
685
+102
| +17% | +$17.6K |
|
431
PUT
MetLife
MET
$60B
| $9.81M | 0.02% |
3,210
+2,179
| +211% | +$96.6K |
|
432
PUT
Workday
WDAY
$32.7B
| $9.8M | 0.02% |
753
-980
| -57% | -$165K |
|
|
TIF
433
DELISTED
Tiffany & Co.
TIF
| $9.8M | 0.02% |
+75,652
| New | +$9.96M |
|
434
Palo Alto Networks
PANW
$273B
| $9.79M | 0.02% |
358,236
+259,638
| +263% | +$9.06M |
|
435
CALL
Novartis
NVS
$292B
| $9.79M | 0.02% |
1,199
+632
| +111% | +$56.4K |
|
436
NextEra Energy
NEE
$186B
| $9.79M | 0.02% |
162,680
+162,176
| +32,178% | +$10.2M |
|
437
PUT
Invesco DB US Dollar Index Bullish Fund
UUP
$432M
| $9.72M | 0.02% |
3,631
+2,833
| +355% | +$75.4K |
|
438
PUT
Ford
F
$57.5B
| $9.71M | 0.02% |
20,114
+14,384
| +251% | +$108K |
|
439
PUT
Zoetis
ZTS
$31.1B
| $9.71M | 0.02% |
825
-657
| -44% | -$86.5K |
|
440
CALL
C.H. Robinson
CHRW
$24.4B
| $9.67M | 0.02% |
1,461
+978
| +202% | +$70.3K |
|
441
PUT
Humana
HUM
$47.7B
| $9.67M | 0.02% |
308
-568
| -65% | -$192K |
|
442
CALL
Nucor
NUE
$53.7B
| $9.62M | 0.02% |
2,670
-140
| -5% | -$6.22K |
|
443
PUT
ProShares UltraShort Health Care
RXD
$3.38M
| $9.53M | 0.02% |
996
+173
| +21% | +$12.7K |
|
444
CALL
TJX Companies
TJX
$172B
| $9.52M | 0.02% |
1,991
+1,107
| +125% | +$63.7K |
|
445
CALL
Waste Management
WM
$94.9B
| $9.48M | 0.02% |
1,024
+809
| +376% | +$92.8K |
|
446
PUT
Cummins
CMI
$91.2B
| $9.46M | 0.02% |
699
+403
| +136% | +$62.8K |
|
447
PUT
L3Harris
LHX
$53.1B
| $9.42M | 0.02% |
+523
| New | +$107K |
|
448
CALL
Copart
CPRT
$25.2B
| $9.35M | 0.02% |
5,456
+2,012
| +58% | +$44.8K |
|
449
CALL
Skyworks Solutions
SWKS
$9.5B
| $9.26M | 0.02% |
1,036
-30
| -3% | -$3.2K |
|
450
PUT
Kimberly-Clark
KMB
$36.1B
| $9.26M | 0.02% |
724
+529
| +271% | +$73.2K |
|
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.