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 | |
|---|---|---|---|---|---|---|
651
CALL
XPO
XPO
$25.1B
| $5.58M | 0.01% |
3,311
+1,354
| +69% | +$36.2K |
|
|
FITB
652
CALL
Fifth Third Bancorp
FITB
$52.3B
| $5.56M | 0.01% |
3,742
+2,677
| +251% | +$66.8K |
|
|
WBA
653
PUT
DELISTED
Walgreens Boots Alliance
WBA
| $5.55M | 0.01% |
1,214
-1,611
| -57% | -$81.8K |
|
654
PUT
Petrobras
PBR
$122B
| $5.54M | 0.01% |
10,073
+5,419
| +116% | +$64.7K |
|
655
PUT
Corpay
CPAY
$23.5B
| $5.54M | 0.01% |
297
-370
| -55% | -$102K |
|
656
PUT
SS&C Technologies
SSNC
$16.1B
| $5.52M | 0.01% |
1,260
+1,229
| +3,965% | +$69.5K |
|
|
CXO
657
CALL
DELISTED
CONCHO RESOURCES INC.
CXO
| $5.51M | 0.01% |
+1,287
| New | +$89.5K |
|
658
CALL
Stryker
SYK
$119B
| $5.49M | 0.01% |
330
+163
| +98% | +$31.8K |
|
659
PUT
iQIYI
IQ
$1.2B
| $5.49M | 0.01% |
3,082
+1,510
| +96% | +$33.9K |
|
660
PUT
Whirlpool
WHR
$2.41B
| $5.47M | 0.01% |
638
-1,338
| -68% | -$176K |
|
661
State Street Materials Select Sector SPDR ETF
XLB
$8.43B
| $5.46M | 0.01% |
242,276
+212,206
| +706% | +$5.83M |
|
662
Direxion Daily Gold Miners Index Bull 2X ETF
NUGT
$902M
| $5.46M | 0.01% |
160,447
+158,974
| +10,793% | +$21M |
|
663
PUT
Waste Management
WM
$94.9B
| $5.45M | 0.01% |
589
-32
| -5% | -$3.67K |
|
664
PUT
GSK
GSK
$102B
| $5.44M | 0.01% |
1,149
+112
| +11% | +$5.97K |
|
|
AGN
665
CALL
DELISTED
Allergan plc
AGN
| $5.4M | 0.01% |
305
-191
| -39% | -$36K |
|
666
CALL
American International
AIG
$41.5B
| $5.4M | 0.01% |
2,226
-372
| -14% | -$16K |
|
667
PUT
Dentsply Sirona
XRAY
$2.66B
| $5.35M | 0.01% |
1,378
+1,363
| +9,087% | +$69.4K |
|
668
CALL
Franco-Nevada
FNV
$41.3B
| $5.34M | 0.01% |
537
+108
| +25% | +$11.7K |
|
669
PUT
CoStar Group
CSGP
$11.3B
| $5.34M | 0.01% |
910
-10
| -1% | -$652 |
|
670
PUT
Synopsys
SNPS
$72.3B
| $5.33M | 0.01% |
414
+362
| +696% | +$51.5K |
|
671
PUT
MGM Resorts International
MGM
$11.6B
| $5.33M | 0.01% |
4,517
+2,843
| +170% | +$73.1K |
|
672
CALL
Kimberly-Clark
KMB
$36.1B
| $5.32M | 0.01% |
416
-239
| -36% | -$33.1K |
|
673
Abbott
ABT
$175B
| $5.31M | 0.01% |
+67,267
| New | +$5.61M |
|
674
PUT
Microchip Technology
MCHP
$46.2B
| $5.3M | 0.01% |
1,564
+242
| +18% | +$11.4K |
|
675
CALL
Cardinal Health
CAH
$51.7B
| $5.3M | 0.01% |
1,105
-33
| -3% | -$1.71K |
|
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.