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 | |
|---|---|---|---|---|---|---|
826
PUT
Canadian Pacific Kansas City
CP
$82B
| $5.26M | 0.01% |
1,030
-90
| -8% | -$4.27K |
|
|
BBBY
827
CALL
DELISTED
Bed Bath & Beyond Inc
BBBY
| $5.26M | 0.01% |
4,959
+2,549
| +106% | +$17.6K |
|
828
PUT
WisdomTree US Total Dividend Fund
DTD
$1.64B
| $5.25M | 0.01% |
4,660
-562
| -11% | -$24.5K |
|
|
LVGO
829
CALL
DELISTED
Livongo Health, Inc. Common Stock
LVGO
| $5.25M | 0.01% |
699
+47
| +7% | +$2.46K |
|
830
PUT
BILL Holdings
BILL
$4.11B
| $5.25M | 0.01% |
582
-271
| -32% | -$17.5K |
|
|
831
State Street SPDR S&P 500 ETF Trust
SPY
$777B
| $5.25M | 0.01% |
17,023
-79,001
| -82% | -$23.1M |
|
832
Enphase Energy
ENPH
$5.13B
| $5.25M | 0.01% |
110,306
+69,804
| +172% | +$3.34M |
|
833
CALL
Petrobras
PBR
$122B
| $5.23M | 0.01% |
6,328
-6,168
| -49% | -$44.7K |
|
834
CALL
Canadian Imperial Bank of Commerce
CM
$106B
| $5.21M | 0.01% |
1,556
-190
| -11% | -$5.93K |
|
835
CALL
Best Buy
BBY
$17.8B
| $5.18M | 0.01% |
594
+189
| +47% | +$14.3K |
|
836
PUT
Martin Marietta Materials
MLM
$32.8B
| $5.16M | 0.01% |
250
+164
| +191% | +$31.5K |
|
|
KL
837
CALL
DELISTED
Kirkland Lake Gold Ltd Ordinary
KL
| $5.16M | 0.01% |
1,250
+775
| +163% | +$30K |
|
838
PUT
Phillips 66
PSX
$83B
| $5.15M | 0.01% |
716
+203
| +40% | +$14.4K |
|
839
State Street Consumer Discretionary Select Sector SPDR ETF
XLY
$21.3B
| $5.14M | 0.01% |
80,560
+80,360
| +40,180% | +$4.74M |
|
840
CALL
Invesco S&P SmallCap Low Volatility ETF
XSLV
$246M
| $5.13M | 0.01% |
2,345
+1,148
| +96% | +$38.1K |
|
841
Match Group
MTCH
$8.72B
| $5.13M | 0.01% |
47,930
+47,301
| +7,520% | +$3.95M |
|
842
Las Vegas Sands
LVS
$30.5B
| $5.12M | 0.01% |
112,472
+18,818
| +20% | +$884K |
|
|
IRBT
843
CALL
DELISTED
iRobot
IRBT
| $5.12M | 0.01% |
610
+166
| +37% | +$10.9K |
|
844
CALL
Apollo Global Management
APO
$68.6B
| $5.12M | 0.01% |
1,025
+210
| +26% | +$9.21K |
|
845
PUT
CSX Corp
CSX
$98.1B
| $5.09M | 0.01% |
2,190
-2,022
| -48% | -$44.7K |
|
846
PUT
Polaris
PII
$4.13B
| $5.09M | 0.01% |
550
+508
| +1,210% | +$38.7K |
|
847
PUT
TransDigm Group
TDG
$67.9B
| $5.08M | 0.01% |
115
+3
| +3% | +$1.14K |
|
848
CALL
GSK
GSK
$102B
| $5.08M | 0.01% |
996
-798
| -44% | -$40.9K |
|
849
PUT
Philip Morris
PM
$298B
| $5.07M | 0.01% |
724
-780
| -52% | -$56.9K |
|
850
CALL
Post Holdings
POST
$4.09B
| $5.05M | 0.01% |
882
+645
| +272% | +$37.5K |
|
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.