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 | |
|---|---|---|---|---|---|---|
|
176
SPDR Gold Trust
GLD
$132B
| $31.4M | 0.06% |
+212,230
| New | +$31.6M |
|
177
CALL
Wells Fargo
WFC
$266B
| $31.4M | 0.06% |
10,935
+6,166
| +129% | +$262K |
|
178
PUT
PepsiCo
PEP
$184B
| $31.2M | 0.05% |
2,595
+1,136
| +78% | +$154K |
|
179
CALL
iShares Core MSCI Emerging Markets ETF
IEMG
$154B
| $31M | 0.05% |
+7,328
| New | +$360K |
|
180
PUT
Oracle
ORCL
$366B
| $30.8M | 0.05% |
6,371
+2,998
| +89% | +$155K |
|
181
CALL
Expedia Group
EXPE
$31.8B
| $30.7M | 0.05% |
5,458
+2,610
| +92% | +$251K |
|
182
PUT
Target
TGT
$63.4B
| $30M | 0.05% |
3,225
-1,074
| -25% | -$119K |
|
183
CALL
Comcast
CMCSA
$85.1B
| $29.5M | 0.05% |
8,586
+2,959
| +53% | +$125K |
|
184
CALL
United Parcel Service
UPS
$96.2B
| $28.9M | 0.05% |
3,098
+905
| +41% | +$93.8K |
|
185
PUT
Intuit
INTU
$79.3B
| $28M | 0.05% |
1,216
+319
| +36% | +$86.4K |
|
186
CALL
Mercado Libre
MELI
$92.4B
| $27.9M | 0.05% |
572
-18
| -3% | -$11.1K |
|
187
CALL
NextEra Energy
NEE
$183B
| $27.8M | 0.05% |
4,616
+3,100
| +204% | +$195K |
|
188
CALL
Eli Lilly
LLY
$1.02T
| $27.7M | 0.05% |
2,000
+189
| +10% | +$26K |
|
189
PUT
Blackrock
BLK
$163B
| $27.6M | 0.05% |
627
-345
| -35% | -$170K |
|
190
CALL
United Airlines
UAL
$38.2B
| $27.5M | 0.05% |
8,706
+5,788
| +198% | +$383K |
|
191
PUT
FedEx
FDX
$73.1B
| $27.4M | 0.05% |
2,259
-2,824
| -56% | -$398K |
|
192
CALL
Verizon
VZ
$183B
| $27.4M | 0.05% |
5,095
+2,099
| +70% | +$120K |
|
193
CALL
ServiceNow
NOW
$105B
| $27.3M | 0.05% |
4,765
-2,790
| -37% | -$174K |
|
|
194
PUT
United Parcel Service
UPS
$96.2B
| $27.2M | 0.05% |
2,911
-96
| -3% | -$9.95K |
|
195
PUT
Caterpillar
CAT
$410B
| $27.1M | 0.05% |
2,338
-1,217
| -34% | -$155K |
|
196
CALL
Union Pacific
UNP
$176B
| $26.1M | 0.05% |
1,853
-578
| -24% | -$95.5K |
|
197
PUT
Marriott International
MAR
$97B
| $26M | 0.05% |
3,477
+3,097
| +815% | +$385K |
|
198
PUT
Northrop Grumman
NOC
$74.4B
| $25.8M | 0.05% |
852
+175
| +26% | +$60.9K |
|
199
PUT
General Motors
GM
$71.7B
| $25.7M | 0.05% |
12,348
+8,234
| +200% | +$251K |
|
200
CALL
Procter & Gamble
PG
$345B
| $25.7M | 0.05% |
2,332
-226
| -9% | -$27.1K |
|
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.