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 | |
|---|---|---|---|---|---|---|
5126
PUT
Vericel Corp
VCEL
$2.38B
| $50K | ﹤0.01% |
55
-35
| -39% | -$525 |
|
5127
PUT
Vishay Intertechnology
VSH
$4.6B
| $50K | ﹤0.01% |
35
+32
| +1,067% | +$604 |
|
|
TPC
5128
CALL
Tutor Perini Cor
TPC
$4.03B
| $50K | ﹤0.01% |
75
-4
| -5% | -$43 |
|
|
PDCO
5129
PUT
DELISTED
Patterson Companies, Inc.
PDCO
| $50K | ﹤0.01% |
33
+8
| +32% | +$173 |
|
|
IMGN
5130
CALL
DELISTED
Immunogen Inc
IMGN
| $50K | ﹤0.01% |
147
-247
| -63% | -$1.08K |
|
|
FLXN
5131
DELISTED
Flexion Therapeutics, Inc.
FLXN
| $50K | ﹤0.01% |
6,426
-47,319
| -88% | -$713K |
|
|
BOCH
5132
DELISTED
Bank of Commerce Holdings (CA)
BOCH
| $50K | ﹤0.01% |
6,362
+6,110
| +2,425% | +$61.8K |
|
|
AIV
5133
PUT
Aimco
AIV
$377M
| $49K | ﹤0.01% |
105
-1,021
| -91% | -$6.54K |
|
5134
PUT
Angi Inc
ANGI
$247M
| $49K | ﹤0.01% |
9
-7
| -44% | -$520 |
|
5135
Antero Resources
AR
$10.9B
| $49K | ﹤0.01% |
69,462
+14,398
| +26% | +$24.1K |
|
5136
ArcBest
ARCB
$3.16B
| $49K | ﹤0.01% |
+2,833
| New | +$65.2K |
|
5137
CALL
Popular Inc
BPOP
$11B
| $49K | ﹤0.01% |
14
-1
| -7% | -$50 |
|
5138
PUT
Delek Logistics
DKL
$3.12B
| $49K | ﹤0.01% |
54
+32
| +145% | +$771 |
|
5139
PUT
Evergy
EVRG
$19.4B
| $49K | ﹤0.01% |
9
+8
| +800% | +$526 |
|
|
DMC
5140
Del Monte Corp
DMC
$1.42B
| $49K | ﹤0.01% |
1,808
-1,360
| -43% | -$43.2K |
|
5141
G-III Apparel Group
GIII
$1.54B
| $49K | ﹤0.01% |
6,411
+2,235
| +54% | +$50.9K |
|
5142
CALL
Amplify Online Retail ETF
IBUY
$112M
| $49K | ﹤0.01% |
32
+31
| +3,100% | +$1.52K |
|
5143
PUT
Imperial Oil
IMO
$62.3B
| $49K | ﹤0.01% |
44
+41
| +1,367% | +$855 |
|
5144
PUT
Gartner
IT
$11.1B
| $49K | ﹤0.01% |
5
-18
| -78% | -$2.47K |
|
5145
CALL
MSC Industrial Direct
MSM
$6.76B
| $49K | ﹤0.01% |
9
-149
| -94% | -$9.81K |
|
5146
PUT
Northern Oil and Gas
NOG
$2.29B
| $49K | ﹤0.01% |
75
+55
| +275% | +$803 |
|
5147
CALL
Northwest Natural Holdings
NWN
$2.15B
| $49K | ﹤0.01% |
8
+5
| +167% | +$350 |
|
5148
Viper Energy
VNOM
$8.43B
| $49K | ﹤0.01% |
7,496
+5,726
| +324% | +$104K |
|
5149
CALL
Vera Bradley
VRA
$98.7M
| $49K | ﹤0.01% |
119
-112
| -48% | -$950 |
|
|
WSR
5150
CALL
DELISTED
Whitestone REIT
WSR
| $49K | ﹤0.01% |
80
-19
| -19% | -$224 |
|
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.