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 | |
|---|---|---|---|---|---|---|
76
PUT
Nike
NKE
$63.7B
| $71.9M | 0.13% |
8,688
+3,136
| +56% | +$292K |
|
77
CALL
Home Depot
HD
$332B
| $71.8M | 0.13% |
3,843
+197
| +5% | +$43.2K |
|
78
PUT
PayPal
PYPL
$49.3B
| $71.5M | 0.13% |
7,464
+893
| +14% | +$98.6K |
|
79
PUT
Berkshire Hathaway Class B
BRK.B
$1.06T
| $71.1M | 0.13% |
3,890
-2,508
| -39% | -$533K |
|
80
CALL
Costco
COST
$412B
| $70.1M | 0.12% |
2,457
+240
| +11% | +$72.8K |
|
81
CALL
Broadcom
AVGO
$1.84T
| $69.4M | 0.12% |
29,290
+5,700
| +24% | +$161K |
|
82
PUT
Vanguard S&P 500 ETF
VOO
$981B
| $69.2M | 0.12% |
5,163
+1,317
| +34% | +$369K |
|
83
PUT
ExxonMobil
XOM
$629B
| $67.5M | 0.12% |
17,784
+12,542
| +239% | +$693K |
|
84
CALL
Qualcomm
QCOM
$183B
| $66.4M | 0.12% |
9,820
+3,636
| +59% | +$298K |
|
|
UWC
85
PUT
DELISTED
PROSHARES TR ULTRA RUSSELL3000
UWC
| $64.6M | 0.11% |
14,625
+9,275
| +173% | +$41M |
|
|
UWC
86
CALL
DELISTED
PROSHARES TR ULTRA RUSSELL3000
UWC
| $63.5M | 0.11% |
14,156
+8,600
| +155% | +$38.6M |
|
87
PUT
Coca-Cola
KO
$353B
| $62.7M | 0.11% |
14,176
+10,730
| +311% | +$580K |
|
88
CALL
Mastercard
MA
$476B
| $61.1M | 0.11% |
2,529
+363
| +17% | +$108K |
|
89
CALL
Bristol-Myers Squibb
BMY
$124B
| $60.6M | 0.11% |
10,954
+1,532
| +16% | +$93.6K |
|
90
CALL
Zoom
ZM
$26.3B
| $60.3M | 0.11% |
4,124
+2,927
| +245% | +$289K |
|
|
91
CALL
Coca-Cola
KO
$353B
| $59.1M | 0.1% |
13,363
+9,634
| +258% | +$520K |
|
92
CALL
Bank of America
BAC
$430B
| $58.3M | 0.1% |
27,441
+19,595
| +250% | +$587K |
|
93
CALL
Cisco
CSCO
$442B
| $58.2M | 0.1% |
14,800
+5,933
| +67% | +$260K |
|
94
CALL
State Street SPDR NYSE Technology ETF
XNTK
$2.16B
| $57.9M | 0.1% |
15,964
-9,380
| -37% | -$774K |
|
95
CALL
Adobe
ADBE
$90.3B
| $57.6M | 0.1% |
1,811
-281
| -13% | -$96.1K |
|
96
CALL
Shopify
SHOP
$160B
| $57.6M | 0.1% |
13,810
-7,890
| -36% | -$356K |
|
|
TWTR
97
PUT
DELISTED
Twitter, Inc.
TWTR
| $57.4M | 0.1% |
23,377
+11,986
| +105% | +$388K |
|
98
PUT
Gilead Sciences
GILD
$165B
| $57.2M | 0.1% |
7,656
+1,080
| +16% | +$74.6K |
|
99
PUT
IBM
IBM
$198B
| $56.7M | 0.1% |
5,345
+390
| +8% | +$49.3K |
|
|
100
PUT
Bristol-Myers Squibb
BMY
$124B
| $56.3M | 0.1% |
10,454
+1,167
| +13% | +$71.3K |
|
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.