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 | |
|---|---|---|---|---|---|---|
|
WBA
276
CALL
DELISTED
Walgreens Boots Alliance
WBA
| $16.5M | 0.03% |
3,605
-225
| -6% | -$11.4K |
|
277
CALL
BP
BP
$112B
| $16.4M | 0.03% |
6,741
+2,814
| +72% | +$91K |
|
278
PUT
CrowdStrike
CRWD
$191B
| $16.4M | 0.03% |
11,788
+4,920
| +72% | +$69.5K |
|
279
CALL
Proshares UltraShort Technology
REW
$3.32M
| $16.3M | 0.03% |
124
+29
| +31% | +$22.6K |
|
280
CALL
Northrop Grumman
NOC
$75.4B
| $16.3M | 0.03% |
539
+7
| +1% | +$2.44K |
|
281
PUT
MongoDB
MDB
$24.1B
| $16.3M | 0.03% |
1,194
+643
| +117% | +$95K |
|
282
PUT
Palo Alto Networks
PANW
$272B
| $16.2M | 0.03% |
5,946
+1,398
| +31% | +$48.8K |
|
|
TWTR
283
DELISTED
Twitter, Inc.
TWTR
| $16.2M | 0.03% |
658,230
+655,858
| +27,650% | +$21.2M |
|
284
PUT
Equinix
EQIX
$102B
| $16.1M | 0.03% |
258
+161
| +166% | +$96.3K |
|
285
CALL
Kroger
KR
$35.6B
| $16.1M | 0.03% |
5,343
+548
| +11% | +$16.1K |
|
286
ProShares Ultra VIX Short-Term Futures ETF
UVXY
$237M
| $15.9M | 0.03% |
+109
| New | +$7.97M |
|
|
STZ.B
287
PUT
DELISTED
CONSTELLATION BRANDS, INC. CLASS B
STZ.B
| $15.7M | 0.03% |
1,096
-1,229
| -53% | -$212K |
|
288
CALL
Colgate-Palmolive
CL
$73.1B
| $15.7M | 0.03% |
2,361
+1,444
| +157% | +$102K |
|
289
CALL
Applied Materials
AMAT
$443B
| $15.6M | 0.03% |
3,407
+889
| +35% | +$51.1K |
|
290
PUT
Okta
OKTA
$24.3B
| $15.4M | 0.03% |
1,263
-375
| -23% | -$47.1K |
|
291
PUT
Atlassian
TEAM
$22.4B
| $15.2M | 0.03% |
1,111
-66
| -6% | -$9.23K |
|
292
PUT
HSBC
HSBC
$353B
| $15.2M | 0.03% |
5,421
+1,676
| +45% | +$58.2K |
|
293
CALL
S&P Global
SPGI
$128B
| $15.2M | 0.03% |
619
+519
| +519% | +$142K |
|
294
CALL
Duke Energy
DUK
$98.7B
| $15M | 0.03% |
1,858
+407
| +28% | +$37.4K |
|
295
CALL
Lyft
LYFT
$5.66B
| $15M | 0.03% |
5,579
+3,119
| +127% | +$124K |
|
296
PUT
Wayfair
W
$11.1B
| $15M | 0.03% |
2,799
+1,656
| +145% | +$127K |
|
297
PUT
Vertex Pharmaceuticals
VRTX
$121B
| $14.9M | 0.03% |
628
-40
| -6% | -$9.18K |
|
298
PUT
American Airlines Group
AAL
$9.99B
| $14.9M | 0.03% |
12,241
+9,554
| +356% | +$218K |
|
299
PUT
GE Aerospace
GE
$357B
| $14.8M | 0.03% |
3,750
+1,960
| +109% | +$105K |
|
300
CALL
NXP Semiconductors
NXPI
$68.5B
| $14.8M | 0.03% |
1,781
-888
| -33% | -$104K |
|
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.