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 |
Invesco QQQ Trust
QQQ
|
+$77.3M |
| 2 |
SPDR Gold Trust
GLD
|
+$73.2M |
| 3 |
iShares MSCI EAFE ETF
EFA
|
+$38.5M |
| 4 |
Netflix
NFLX
|
+$38.4M |
| 5 |
NVIDIA
NVDA
|
+$36.3M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$55.9M |
| 2 |
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
|
+$28.3M |
| 3 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$23.1M |
| 4 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$23.1M |
| 5 |
Adobe
ADBE
|
+$22M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.49% |
| 2 | Consumer Discretionary | 0.47% |
| 3 | Communication Services | 0.34% |
| 4 | Healthcare | 0.26% |
| 5 | Financials | 0.23% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
526
CALL
XPO
XPO
$25.1B
| $9.84M | 0.02% |
3,684
+373
| +11% | +$8.93K |
|
|
CLDR
527
CALL
DELISTED
Cloudera, Inc.
CLDR
| $9.84M | 0.02% |
7,732
+5,513
| +248% | +$53K |
|
528
PUT
Rio Tinto
RIO
$150B
| $9.82M | 0.02% |
1,749
+132
| +8% | +$6.69K |
|
|
SCHW
529
PUT
Charles Schwab
SCHW
$175B
| $9.82M | 0.02% |
2,912
+911
| +46% | +$32.6K |
|
530
PUT
Zillow
Z
$7.18B
| $9.77M | 0.02% |
1,696
-571
| -25% | -$28.3K |
|
531
PUT
Cummins
CMI
$91.2B
| $9.75M | 0.02% |
563
-136
| -19% | -$21.7K |
|
532
CALL
CoStar Group
CSGP
$11.3B
| $9.74M | 0.02% |
1,370
-310
| -18% | -$20K |
|
533
Morgan Stanley
MS
$343B
| $9.73M | 0.02% |
+201,509
| New | +$8.46M |
|
534
PUT
MSCI
MSCI
$41.6B
| $9.68M | 0.02% |
290
+119
| +70% | +$38.5K |
|
535
Peloton Interactive
PTON
$2.71B
| $9.66M | 0.02% |
167,235
-24,931
| -13% | -$1.03M |
|
536
CALL
Sherwin-Williams
SHW
$78.9B
| $9.65M | 0.02% |
501
+114
| +29% | +$20.6K |
|
537
PUT
Becton Dickinson
BDX
$42.2B
| $9.64M | 0.02% |
413
-388
| -48% | -$93.5K |
|
538
Direxion Daily Small Cap Bull 3x ETF
TNA
$1.38B
| $9.63M | 0.02% |
351,482
+323,567
| +1,159% | +$7.37M |
|
539
CALL
Franco-Nevada
FNV
$41.3B
| $9.58M | 0.02% |
686
+149
| +28% | +$19.8K |
|
540
CALL
New Oriental
EDU
$7.75B
| $9.56M | 0.02% |
734
+533
| +265% | +$64.9K |
|
|
PPLC
541
CALL
DELISTED
PortfolioPlus S&P 500 ETF
PPLC
| $9.5M | 0.02% |
2,340
-775
| -25% | -$29.8K |
|
542
CALL
Caesars Entertainment
CZR
$6.1B
| $9.46M | 0.02% |
2,362
+458
| +24% | +$12.7K |
|
543
CALL
Royal Bank of Canada
RY
$294B
| $9.44M | 0.02% |
1,393
-43
| -3% | -$2.73K |
|
544
Royal Caribbean
RCL
$76.7B
| $9.42M | 0.02% |
187,297
+119,533
| +176% | +$5.41M |
|
545
iShares Silver Trust
SLV
$28.8B
| $9.41M | 0.02% |
553,553
-1,236,339
| -69% | -$18.9M |
|
546
iShares US Real Estate ETF
IYR
$4.5B
| $9.4M | 0.02% |
119,316
+119,016
| +39,672% | +$9.02M |
|
547
PUT
StoneCo
STNE
$2.76B
| $9.35M | 0.01% |
2,412
+2,198
| +1,027% | +$64.1K |
|
548
CALL
Capital One
COF
$124B
| $9.34M | 0.01% |
1,492
+879
| +143% | +$54.7K |
|
549
PUT
Tyson Foods
TSN
$20.1B
| $9.33M | 0.01% |
1,563
-1,311
| -46% | -$79.5K |
|
550
CALL
Eaton
ETN
$158B
| $9.29M | 0.01% |
1,062
+337
| +46% | +$27.7K |
|
Similar funds
Simplex Trading's Q2 2020 Portfolio in Review
As of Q2 2020, Simplex Trading held 8,917 positions worth $62.7B, up 11% from $56.7B the previous quarter. Its ten largest holdings account for 44% of the portfolio.
Simplex Trading's Q2 2020 filing shows 1,290 new, 3,427 increased, 2,723 reduced and 1,278 closed positions. Its largest new stake was iShares MSCI EAFE ETF: 665,841 shares worth $40.5M. The largest sale was Apple, an estimated $55.9M.
By sector, the portfolio is most concentrated in Technology at 0.49% of assets, up from 0.49% a quarter earlier, followed by Consumer Discretionary and Communication Services.
- Simplex Trading's largest Q2 2020 buy was iShares MSCI EAFE ETF: 665,841 shares worth $40.5M.
- Simplex Trading added most to Invesco QQQ Trust in Q2 2020, an estimated $77.3M increase.
- Simplex Trading's biggest Q2 2020 reduction was Apple, cutting an estimated $55.9M.
- Simplex Trading fully exited Adobe in Q2 2020, selling an estimated $22M.
- Simplex Trading's ten largest holdings make up 44% of its $62.7B portfolio in Q2 2020.
- Simplex Trading opened 1,290 new positions and closed 1,278 in Q2 2020.
- Simplex Trading's portfolio value rose 11% quarter-over-quarter to $62.7B.
Based on Simplex Trading's 13F filing for Q2 2020, filed 13 Jul 2020.