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 | |
|---|---|---|---|---|---|---|
|
BLUE
1526
PUT
DELISTED
bluebird bio
BLUE
| $1.48M | ﹤0.01% |
25
-14
| -36% | -$13.6K |
|
1527
CALL
Rockwell Automation
ROK
$51.7B
| $1.48M | ﹤0.01% |
98
-18
| -16% | -$3.34K |
|
|
GOOS
1528
PUT
Canada Goose Holdings
GOOS
$872M
| $1.48M | ﹤0.01% |
743
-226
| -23% | -$6.32K |
|
1529
Mercado Libre
MELI
$91.9B
| $1.47M | ﹤0.01% |
3,017
+234
| +8% | +$144K |
|
|
PLAN
1530
CALL
DELISTED
Anaplan, Inc.
PLAN
| $1.47M | ﹤0.01% |
486
-67
| -12% | -$3.34K |
|
|
ESPR
1531
PUT
DELISTED
Esperion Therapeutics
ESPR
| $1.47M | ﹤0.01% |
466
+150
| +47% | +$7.92K |
|
|
FITB
1532
Fifth Third Bancorp
FITB
$52.2B
| $1.47M | ﹤0.01% |
+98,923
| New | +$2.47M |
|
1533
National Healthcare
NHC
$3.53B
| $1.47M | ﹤0.01% |
20,478
+20,360
| +17,254% | +$1.61M |
|
1534
Canadian Imperial Bank of Commerce
CM
$107B
| $1.47M | ﹤0.01% |
50,586
+30,700
| +154% | +$1.14M |
|
1535
iShares MSCI Germany ETF
EWG
$1.51B
| $1.47M | ﹤0.01% |
68,214
+67,888
| +20,825% | +$1.81M |
|
|
SIVB
1536
CALL
DELISTED
SVB Financial Group
SIVB
| $1.47M | ﹤0.01% |
97
-32
| -25% | -$7.04K |
|
1537
CALL
Cal-Maine
CALM
$4.27B
| $1.46M | ﹤0.01% |
333
+180
| +118% | +$6.81K |
|
1538
CALL
Kratos Defense & Security Solutions
KTOS
$9B
| $1.46M | ﹤0.01% |
1,058
+980
| +1,256% | +$16.9K |
|
1539
CALL
Aurinia Pharmaceuticals
AUPH
$1.99B
| $1.46M | ﹤0.01% |
1,007
+98
| +11% | +$1.73K |
|
1540
CALL
Arrowhead Research
ARWR
$12.1B
| $1.46M | ﹤0.01% |
507
-238
| -32% | -$9.6K |
|
1541
PUT
B&G Foods
BGS
$287M
| $1.46M | ﹤0.01% |
806
+357
| +80% | +$5.59K |
|
1542
PUT
Harley-Davidson
HOG
$2.74B
| $1.46M | ﹤0.01% |
770
-911
| -54% | -$27.6K |
|
1543
CALL
Tapestry
TPR
$28.7B
| $1.45M | ﹤0.01% |
1,123
+255
| +29% | +$5.97K |
|
1544
CALL
Raymond James Financial
RJF
$32.4B
| $1.45M | ﹤0.01% |
345
-119
| -26% | -$6.71K |
|
1545
PUT
Vanguard High Dividend Yield ETF
VYM
$81.1B
| $1.45M | ﹤0.01% |
205
+122
| +147% | +$10.5K |
|
|
CATM
1546
PUT
DELISTED
Cardtronics plc Class A Ordinary Shares (UK)
CATM
| $1.45M | ﹤0.01% |
693
+60
| +9% | +$2.26K |
|
1547
CALL
Elanco Animal Health
ELAN
$12.5B
| $1.45M | ﹤0.01% |
+646
| New | +$17.7K |
|
1548
CALL
TripAdvisor
TRIP
$1.6B
| $1.45M | ﹤0.01% |
832
+137
| +20% | +$3.47K |
|
1549
CALL
AES
AES
$10.6B
| $1.45M | ﹤0.01% |
1,063
+478
| +82% | +$8.57K |
|
1550
PUT
GoDaddy
GDDY
$12.2B
| $1.44M | ﹤0.01% |
253
-166
| -40% | -$11K |
|
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.