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 | |
|---|---|---|---|---|---|---|
376
CALL
Newmont
NEM
$102B
| $11.1M | 0.02% |
2,459
+276
| +13% | +$12.5K |
|
377
Elevance Health
ELV
$84.4B
| $11.1M | 0.02% |
+48,902
| New | +$13.3M |
|
378
PUT
Darden Restaurants
DRI
$22.2B
| $11.1M | 0.02% |
2,034
+1,964
| +2,806% | +$191K |
|
379
CALL
ConocoPhillips
COP
$145B
| $11M | 0.02% |
3,568
-775
| -18% | -$39.4K |
|
380
PUT
Universal Display
OLED
$3.81B
| $11M | 0.02% |
833
-198
| -19% | -$34.1K |
|
381
PUT
Philip Morris
PM
$303B
| $11M | 0.02% |
1,504
-1,815
| -55% | -$149K |
|
382
CALL
Match Group
MTCH
$8.87B
| $11M | 0.02% |
1,661
+674
| +68% | +$49.5K |
|
|
PPLI
383
PUT
People Inc
PPLI
$3.23B
| $10.9M | 0.02% |
3,402
+2,501
| +278% | +$99.1K |
|
384
CALL
Illumina
ILMN
$28.9B
| $10.9M | 0.02% |
410
-797
| -66% | -$223K |
|
385
TSMC
TSM
$2.18T
| $10.8M | 0.02% |
227,015
+96,312
| +74% | +$5.27M |
|
386
CALL
Royal Caribbean
RCL
$76.7B
| $10.8M | 0.02% |
3,365
+2,346
| +230% | +$214K |
|
|
DOCU
387
CALL
DocuSign
DOCU
$9.14B
| $10.8M | 0.02% |
1,171
-355
| -23% | -$28.5K |
|
388
CALL
Take-Two Interactive
TTWO
$43.4B
| $10.8M | 0.02% |
909
+335
| +58% | +$39.6K |
|
389
CALL
Zillow
Z
$7.18B
| $10.7M | 0.02% |
3,000
+1,368
| +84% | +$63.2K |
|
390
PUT
SAP
SAP
$174B
| $10.7M | 0.02% |
972
+246
| +34% | +$31K |
|
391
PUT
Twilio
TWLO
$27.8B
| $10.7M | 0.02% |
1,192
-149
| -11% | -$16.4K |
|
392
iShares MSCI ACWI ETF
ACWI
$33B
| $10.6M | 0.02% |
170,070
+143,189
| +533% | +$10.6M |
|
393
CALL
US Bancorp Series B Preferred Stock
USB.PRH
$747M
| $10.6M | 0.02% |
3,085
+752
| +32% | +$15.8K |
|
394
PUT
ProShares Ultra S&P500
SSO
$8.02B
| $10.6M | 0.02% |
11,000
+800
| +8% | +$13.5K |
|
395
CALL
Honeywell
HON
$73.8B
| $10.6M | 0.02% |
838
-745
| -47% | -$115K |
|
396
CALL
Mondelez International
MDLZ
$78.1B
| $10.5M | 0.02% |
2,103
-141
| -6% | -$7.64K |
|
397
CALL
Chubb
CB
$133B
| $10.4M | 0.02% |
935
+267
| +40% | +$38.3K |
|
398
CALL
United States Oil Fund
USO
$2.36B
| $10.4M | 0.02% |
3,101
+2,858
| +1,176% | +$220K |
|
399
PUT
Teva Pharmaceuticals
TEVA
$35.1B
| $10.4M | 0.02% |
11,620
+2,914
| +33% | +$29.9K |
|
400
PUT
Live Nation Entertainment
LYV
$41.4B
| $10.4M | 0.02% |
2,294
+2,017
| +728% | +$125K |
|
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.