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 | |
|---|---|---|---|---|---|---|
1326
PUT
Vulcan Materials
VMC
$35.7B
| $1.88M | ﹤0.01% |
174
-482
| -73% | -$61.6K |
|
1327
Regions Financial
RF
$26.2B
| $1.88M | ﹤0.01% |
209,335
+200,335
| +2,226% | +$2.81M |
|
1328
Cboe Global Markets
CBOE
$29.8B
| $1.88M | ﹤0.01% |
21,010
+18,579
| +764% | +$2.08M |
|
1329
PUT
Popular Inc
BPOP
$10.9B
| $1.87M | ﹤0.01% |
535
+479
| +855% | +$23.7K |
|
1330
PUT
Diageo
DEO
$45.7B
| $1.87M | ﹤0.01% |
147
+54
| +58% | +$8.1K |
|
1331
CF Industries
CF
$19.5B
| $1.86M | ﹤0.01% |
68,404
+30,073
| +78% | +$1.12M |
|
1332
PUT
Leidos
LDOS
$13.9B
| $1.86M | ﹤0.01% |
203
+171
| +534% | +$17.3K |
|
|
LVGO
1333
CALL
DELISTED
Livongo Health, Inc. Common Stock
LVGO
| $1.86M | ﹤0.01% |
652
+617
| +1,763% | +$16K |
|
1334
PUT
Energy Transfer Partners
ET
$70.3B
| $1.86M | ﹤0.01% |
4,042
+2,522
| +166% | +$26.9K |
|
1335
CALL
Cleveland-Cliffs
CLF
$6.25B
| $1.86M | ﹤0.01% |
4,704
+2,715
| +137% | +$17.1K |
|
1336
PUT
Cimpress
CMPR
$2.36B
| $1.86M | ﹤0.01% |
349
+339
| +3,390% | +$34.4K |
|
1337
CALL
Toll Brothers
TOL
$13.7B
| $1.85M | ﹤0.01% |
964
+272
| +39% | +$10.3K |
|
1338
PUT
Conagra Brands
CAG
$6.88B
| $1.85M | ﹤0.01% |
+632
| New | +$19K |
|
1339
CALL
AudioCodes
AUDC
$243M
| $1.85M | ﹤0.01% |
774
+557
| +257% | +$12.9K |
|
1340
CALL
Cooper Companies
COO
$13.7B
| $1.85M | ﹤0.01% |
268
+128
| +91% | +$10.4K |
|
1341
CALL
BorgWarner
BWA
$13.2B
| $1.84M | ﹤0.01% |
860
+673
| +360% | +$19.5K |
|
1342
PUT
Quaker Houghton
KWR
$2.58B
| $1.84M | ﹤0.01% |
146
+69
| +90% | +$11.2K |
|
1343
Xtrackers Harvest CSI 300 China A-Shares ETF
ASHR
$1.37B
| $1.84M | ﹤0.01% |
+70,991
| New | +$2.01M |
|
1344
PUT
Pembina Pipeline
PBA
$29.8B
| $1.84M | ﹤0.01% |
977
+961
| +6,006% | +$31.6K |
|
1345
PUT
BHP
BHP
$212B
| $1.83M | ﹤0.01% |
561
-658
| -54% | -$27.5K |
|
1346
Essex Property Trust
ESS
$18.8B
| $1.83M | ﹤0.01% |
8,323
+8,023
| +2,674% | +$2.31M |
|
1347
PUT
Cencora
COR
$59.4B
| $1.83M | ﹤0.01% |
207
-484
| -70% | -$42.6K |
|
1348
PUT
Madrigal Pharmaceuticals
MDGL
$12.5B
| $1.83M | ﹤0.01% |
274
+89
| +48% | +$7.42K |
|
1349
CALL
SS&C Technologies
SSNC
$16.1B
| $1.83M | ﹤0.01% |
417
+215
| +106% | +$12.2K |
|
1350
PUT
Ascendis Pharma A/S
ASND
$16.6B
| $1.82M | ﹤0.01% |
162
+159
| +5,300% | +$20.7K |
|
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.