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 | |
|---|---|---|---|---|---|---|
|
DISCK
1101
PUT
DELISTED
Discovery, Inc. Series C Common Stock
DISCK
| $2.55M | ﹤0.01% |
1,322
-1,421
| -52% | -$36.7K |
|
1102
PUT
Qiagen
QGEN
$8.55B
| $2.55M | ﹤0.01% |
578
-682
| -54% | -$26.6K |
|
1103
CALL
Unilever
UL
$130B
| $2.55M | ﹤0.01% |
448
+361
| +415% | +$22.6K |
|
|
GWPH
1104
CALL
DELISTED
GW Pharmaceuticals Plc American Depositary Shares
GWPH
| $2.54M | ﹤0.01% |
290
+120
| +71% | +$12.7K |
|
1105
CALL
First Solar
FSLR
$22.1B
| $2.54M | ﹤0.01% |
704
+8
| +1% | +$380 |
|
1106
PUT
Aurinia Pharmaceuticals
AUPH
$1.96B
| $2.54M | ﹤0.01% |
1,748
+88
| +5% | +$1.55K |
|
1107
CALL
Northern Trust
NTRS
$21.9B
| $2.54M | ﹤0.01% |
336
+190
| +130% | +$17.4K |
|
1108
PUT
Ubiquiti
UI
$32B
| $2.52M | ﹤0.01% |
178
-292
| -62% | -$44.6K |
|
1109
PUT
Omega Healthcare
OHI
$15.2B
| $2.52M | ﹤0.01% |
949
+690
| +266% | +$26.2K |
|
1110
CALL
Ford
F
$56.4B
| $2.51M | ﹤0.01% |
5,207
-630
| -11% | -$4.72K |
|
|
CCXI
1111
PUT
DELISTED
ChemoCentryx, Inc.
CCXI
| $2.51M | ﹤0.01% |
625
-568
| -48% | -$24.1K |
|
|
1112
Ford
F
$56.4B
| $2.5M | ﹤0.01% |
+518,726
| New | +$3.89M |
|
1113
CALL
Xerox
XRX
$341M
| $2.5M | ﹤0.01% |
1,320
+354
| +37% | +$11.2K |
|
1114
CALL
Brighthouse Financial
BHF
$3.6B
| $2.49M | ﹤0.01% |
1,031
+539
| +110% | +$19.1K |
|
1115
CALL
Vanguard High Dividend Yield ETF
VYM
$80.6B
| $2.49M | ﹤0.01% |
352
+182
| +107% | +$15.6K |
|
1116
PUT
Essex Property Trust
ESS
$18.8B
| $2.49M | ﹤0.01% |
113
+21
| +23% | +$6.03K |
|
1117
CALL
Invesco S&P SmallCap Low Volatility ETF
XSLV
$246M
| $2.49M | ﹤0.01% |
1,197
+1,150
| +2,447% | +$52.4K |
|
1118
BP
BP
$113B
| $2.48M | ﹤0.01% |
101,782
-15,196
| -13% | -$491K |
|
|
CYBR
1119
PUT
DELISTED
CyberArk
CYBR
| $2.48M | ﹤0.01% |
290
-11
| -4% | -$1.27K |
|
1120
CALL
DexCom
DXCM
$27.2B
| $2.48M | ﹤0.01% |
368
-608
| -62% | -$37.8K |
|
|
BZUN
1121
PUT
Baozun
BZUN
$143M
| $2.48M | ﹤0.01% |
886
+443
| +100% | +$14K |
|
|
1122
CALL
Qiagen
QGEN
$8.55B
| $2.48M | ﹤0.01% |
561
-1,635
| -74% | -$63.9K |
|
1123
CALL
Carlyle Group
CG
$16B
| $2.47M | ﹤0.01% |
1,141
+1,085
| +1,938% | +$31.3K |
|
|
SNP
1124
PUT
DELISTED
CHINA PETROLEUM & CHEMICAL CORPORATION ADS (REP 100 ORDINARY H SHARES)
SNP
| $2.47M | ﹤0.01% |
507
+173
| +52% | +$9.19K |
|
1125
Sea Limited
SE
$60.9B
| $2.46M | ﹤0.01% |
55,532
+52,965
| +2,063% | +$2.38M |
|
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.