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 | |
|---|---|---|---|---|---|---|
676
CALL
T. Rowe Price
TROW
$24.9B
| $5.29M | 0.01% |
542
-36
| -6% | -$4.41K |
|
677
CALL
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
$27B
| $5.28M | 0.01% |
201
-44
| -18% | -$14.9K |
|
|
COUP
678
CALL
DELISTED
Coupa Software Incorporated
COUP
| $5.28M | 0.01% |
378
-251
| -40% | -$38.8K |
|
|
CVM.WS
679
PUT
DELISTED
Cel-Sci Corp Series S
CVM.WS
| $5.28M | 0.01% |
4,573
+3,460
| +311% | +$3.99M |
|
|
X
680
PUT
DELISTED
US Steel
X
| $5.27M | 0.01% |
8,351
+6,433
| +335% | +$53.9K |
|
681
PUT
Agilent Technologies
A
$37.7B
| $5.26M | 0.01% |
734
-477
| -39% | -$38.3K |
|
|
PPLC
682
CALL
DELISTED
PortfolioPlus S&P 500 ETF
PPLC
| $5.25M | 0.01% |
3,115
-688
| -18% | -$28.5K |
|
|
PPL
683
CALL
PPL Corp
PPL
$27.2B
| $5.22M | 0.01% |
2,115
-496
| -19% | -$16K |
|
684
CALL
Wheaton Precious Metals
WPM
$50.6B
| $5.22M | 0.01% |
1,895
+1,184
| +167% | +$34.2K |
|
|
NBIS
685
PUT
Nebius Group N.V.
NBIS
$55.4B
| $5.17M | 0.01% |
1,517
+576
| +61% | +$23.8K |
|
686
PUT
American Electric Power
AEP
$72.4B
| $5.14M | 0.01% |
643
+271
| +73% | +$25.6K |
|
687
PUT
PNC Financial Services
PNC
$101B
| $5.14M | 0.01% |
537
-535
| -50% | -$71.9K |
|
|
ATVI
688
DELISTED
Activision Blizzard
ATVI
| $5.14M | 0.01% |
86,431
+84,339
| +4,032% | +$5.01M |
|
689
Peloton Interactive
PTON
$2.71B
| $5.1M | 0.01% |
+192,166
| New | +$5.34M |
|
690
PUT
Rockwell Automation
ROK
$51B
| $5.1M | 0.01% |
338
+181
| +115% | +$33.5K |
|
|
691
CALL
American Electric Power
AEP
$72.4B
| $5.09M | 0.01% |
637
-506
| -44% | -$47.8K |
|
692
PUT
Macy's
M
$6.4B
| $5.07M | 0.01% |
10,328
+6,676
| +183% | +$90.5K |
|
693
CALL
Canadian Imperial Bank of Commerce
CM
$107B
| $5.06M | 0.01% |
1,746
+1,292
| +285% | +$48.1K |
|
694
CALL
Sony
SONY
$123B
| $5.04M | 0.01% |
4,260
-820
| -16% | -$10.7K |
|
695
CALL
EOG Resources
EOG
$76.7B
| $5.04M | 0.01% |
1,403
-1,073
| -43% | -$69.8K |
|
696
PUT
Prudential Financial
PRU
$41.3B
| $5.04M | 0.01% |
966
+42
| +5% | +$3.34K |
|
697
PUT
Zscaler
ZS
$23B
| $5M | 0.01% |
822
-108
| -12% | -$5.95K |
|
698
CALL
Linde
LIN
$235B
| $5M | 0.01% |
289
+85
| +42% | +$16.8K |
|
699
CALL
Toronto Dominion Bank
TD
$200B
| $4.99M | 0.01% |
1,176
+348
| +42% | +$17.9K |
|
700
CALL
Encompass Health
EHC
$11B
| $4.97M | 0.01% |
975
+414
| +74% | +$23.9K |
|
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.