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 | |
|---|---|---|---|---|---|---|
1126
CALL
Amplify Junior Silver Miners ETF
SILJ
$3.28B
| $2.46M | ﹤0.01% |
1,962
+1,437
| +274% | +$14K |
|
1127
PUT
Nokia
NOK
$54.3B
| $2.45M | ﹤0.01% |
7,906
+7,245
| +1,096% | +$26.9K |
|
1128
PUT
Consolidated Edison
ED
$41.6B
| $2.45M | ﹤0.01% |
314
+164
| +109% | +$14.4K |
|
1129
PUT
Grocery Outlet
GO
$884M
| $2.44M | ﹤0.01% |
712
+49
| +7% | +$1.59K |
|
1130
CALL
Invesco Equal Weight 0-30 Year Treasury ETF
GOVI
$1.22B
| $2.44M | ﹤0.01% |
544
+456
| +518% | +$16.7K |
|
1131
PUT
Ally Financial
ALLY
$13.4B
| $2.43M | ﹤0.01% |
1,687
+1,333
| +377% | +$35K |
|
1132
CALL
Novavax
NVAX
$1.29B
| $2.43M | ﹤0.01% |
1,788
+119
| +7% | +$1.01K |
|
|
UN
1133
PUT
DELISTED
Unilever NV New York Registry Shares
UN
| $2.42M | ﹤0.01% |
497
-554
| -53% | -$30.3K |
|
1134
CALL
Ecolab
ECL
$74.1B
| $2.42M | ﹤0.01% |
155
+96
| +163% | +$18K |
|
|
NVO
1135
PUT
Novo Nordisk
NVO
$213B
| $2.41M | ﹤0.01% |
802
+260
| +48% | +$7.74K |
|
|
REGI
1136
PUT
DELISTED
Renewable Energy Group, Inc.
REGI
| $2.41M | ﹤0.01% |
1,173
-86
| -7% | -$2.18K |
|
1137
CALL
Lumen
LUMN
$6.73B
| $2.41M | ﹤0.01% |
2,545
-234
| -8% | -$2.93K |
|
|
DOCU
1138
DocuSign
DOCU
$8.98B
| $2.4M | ﹤0.01% |
+26,021
| New | +$2.09M |
|
|
TGNA
1139
CALL
DELISTED
TEGNA Inc
TGNA
| $2.4M | ﹤0.01% |
2,214
+1,949
| +735% | +$31.2K |
|
1140
CALL
Datadog
DDOG
$87B
| $2.4M | ﹤0.01% |
668
+262
| +65% | +$10.8K |
|
1141
CALL
Itaú Unibanco
ITUB
$92B
| $2.4M | ﹤0.01% |
7,357
+4,148
| +129% | +$21.3K |
|
1142
RingCentral
RNG
$3.24B
| $2.4M | ﹤0.01% |
+11,344
| New | +$2.34M |
|
1143
PUT
LendingTree
TREE
$550M
| $2.4M | ﹤0.01% |
131
+42
| +47% | +$11.9K |
|
|
1144
PUT
Ecolab
ECL
$74.1B
| $2.4M | ﹤0.01% |
154
-64
| -29% | -$12K |
|
1145
CALL
Vodafone
VOD
$35.1B
| $2.4M | ﹤0.01% |
1,742
+210
| +14% | +$3.75K |
|
1146
PUT
D.R. Horton
DHI
$39.9B
| $2.4M | ﹤0.01% |
705
-1,740
| -71% | -$90.4K |
|
1147
CALL
Suncor Energy
SU
$78.4B
| $2.4M | ﹤0.01% |
1,516
+340
| +29% | +$8.91K |
|
1148
PUT
Vornado Realty Trust
VNO
$7.34B
| $2.39M | ﹤0.01% |
660
-90
| -12% | -$5.12K |
|
1149
CALL
CF Industries
CF
$19.5B
| $2.38M | ﹤0.01% |
877
+239
| +37% | +$8.88K |
|
1150
Newmont
NEM
$101B
| $2.38M | ﹤0.01% |
52,586
-13,403
| -20% | -$605K |
|
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.