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 | |
|---|---|---|---|---|---|---|
1076
PUT
AGNC Investment
AGNC
$12.3B
| $3.5M | 0.01% |
2,716
+2,371
| +687% | +$29.7K |
|
1077
CALL
Alarm.com
ALRM
$2.5B
| $3.49M | 0.01% |
539
+510
| +1,759% | +$25.7K |
|
1078
CALL
Western Union
WU
$2.6B
| $3.49M | 0.01% |
1,616
+356
| +28% | +$7.23K |
|
1079
ServiceNow
NOW
$95.1B
| $3.49M | 0.01% |
43,105
+26,380
| +158% | +$1.86M |
|
|
X
1080
PUT
DELISTED
US Steel
X
| $3.49M | 0.01% |
4,834
-3,517
| -42% | -$27.4K |
|
1081
PUT
United Parks & Resorts
PRKS
$2.08B
| $3.49M | 0.01% |
2,357
-865
| -27% | -$12.7K |
|
1082
CALL
International Flavors & Fragrances
IFF
$18.8B
| $3.48M | 0.01% |
284
-8
| -3% | -$1.01K |
|
|
AMED
1083
CALL
DELISTED
Amedisys
AMED
| $3.47M | 0.01% |
175
-30
| -15% | -$5.59K |
|
1084
State Street SPDR Bloomberg High Yield Bond ETF
JNK
$7.24B
| $3.47M | 0.01% |
+34,290
| New | +$3.42M |
|
1085
3M
MMM
$87.5B
| $3.47M | 0.01% |
26,589
-36,892
| -58% | -$4.65M |
|
1086
PUT
D.R. Horton
DHI
$39.9B
| $3.46M | 0.01% |
625
-80
| -11% | -$3.88K |
|
1087
PUT
American Water Works
AWK
$26.2B
| $3.46M | 0.01% |
269
+194
| +259% | +$24.2K |
|
1088
PUT
Realty Income
O
$60.4B
| $3.46M | 0.01% |
600
+254
| +73% | +$13.5K |
|
1089
Lumentum
LITE
$64.9B
| $3.45M | 0.01% |
+42,356
| New | +$3.23M |
|
|
ANSS
1090
PUT
DELISTED
Ansys
ANSS
| $3.44M | 0.01% |
118
-160
| -58% | -$42.6K |
|
1091
CALL
Ford
F
$56.4B
| $3.43M | 0.01% |
5,640
+433
| +8% | +$2.4K |
|
1092
CALL
Amplify Junior Silver Miners ETF
SILJ
$3.28B
| $3.43M | 0.01% |
1,686
-276
| -14% | -$2.77K |
|
1093
CALL
Alexandria Real Estate Equities
ARE
$8.73B
| $3.42M | 0.01% |
211
-58
| -22% | -$8.87K |
|
1094
PUT
Invitation Homes
INVH
$17.5B
| $3.42M | 0.01% |
1,243
+844
| +212% | +$21.1K |
|
1095
PUT
Bath & Body Works
BBWI
$3.9B
| $3.42M | 0.01% |
2,824
+560
| +25% | +$6.24K |
|
|
GOOS
1096
CALL
Canada Goose Holdings
GOOS
$896M
| $3.42M | 0.01% |
1,475
-28
| -2% | -$622 |
|
|
LHCG
1097
CALL
DELISTED
LHC Group LLC
LHCG
| $3.42M | 0.01% |
196
+28
| +17% | +$4.11K |
|
1098
Ally Financial
ALLY
$13.4B
| $3.41M | 0.01% |
172,061
+60,651
| +54% | +$1.03M |
|
|
LK
1099
CALL
DELISTED
Luckin Coffee Inc. American Depositary Shares
LK
| $3.41M | 0.01% |
14,623
+9,545
| +188% | +$39.3K |
|
|
AXON
1100
CALL
Axon Enterprise
AXON
$39.6B
| $3.4M | 0.01% |
346
+152
| +78% | +$12.3K |
|
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.