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 | |
|---|---|---|---|---|---|---|
2876
CALL
Insmed
INSM
$23.2B
| $512K | ﹤0.01% |
186
-29
| -13% | -$687 |
|
2877
Vail Resorts
MTN
$5.19B
| $512K | ﹤0.01% |
2,815
-278
| -9% | -$48.6K |
|
2878
CALL
Willis Towers Watson
WTW
$27.9B
| $512K | ﹤0.01% |
26
-158
| -86% | -$30.2K |
|
2879
CALL
NiSource
NI
$22.4B
| $511K | ﹤0.01% |
225
| – | – |
|
2880
CALL
Banco Bilbao Vizcaya Argentaria
BBVA
$144B
| $510K | ﹤0.01% |
1,502
+1,402
| +1,402% | +$4.42K |
|
|
COHR
2881
PUT
DELISTED
Coherent Inc
COHR
| $510K | ﹤0.01% |
39
-4
| -9% | -$524 |
|
2882
PUT
Cenovus Energy
CVE
$54.6B
| $509K | ﹤0.01% |
1,091
+329
| +43% | +$1.26K |
|
2883
CALL
Teleflex
TFX
$5.85B
| $509K | ﹤0.01% |
14
-7
| -33% | -$2.42K |
|
2884
PUT
Eastman Chemical
EMN
$7.8B
| $508K | ﹤0.01% |
73
+50
| +217% | +$3.15K |
|
2885
PetMed Express
PETS
$42.5M
| $508K | ﹤0.01% |
14,272
+6,166
| +76% | +$214K |
|
2886
CALL
Pinnacle Financial Partners Inc
PNFP
$15.5B
| $508K | ﹤0.01% |
121
-22
| -15% | -$873 |
|
2887
PUT
Fortive
FTV
$19B
| $507K | ﹤0.01% |
119
-2
| -2% | -$78 |
|
|
AMWD
2888
PUT
DELISTED
American Woodmark
AMWD
| $506K | ﹤0.01% |
67
+63
| +1,575% | +$3.6K |
|
2889
CALL
Upbound Group
UPBD
$1.19B
| $506K | ﹤0.01% |
182
+124
| +214% | +$2.75K |
|
2890
CALL
Wabtec
WAB
$51.1B
| $506K | ﹤0.01% |
88
-58
| -40% | -$3.29K |
|
|
ENBL
2891
CALL
DELISTED
ENABLE MIDSTREAM PARTNERS, LP
ENBL
| $506K | ﹤0.01% |
1,082
+121
| +13% | +$518 |
|
2892
CALL
Antero Midstream
AM
$10.8B
| $505K | ﹤0.01% |
992
+202
| +26% | +$894 |
|
2893
PUT
Churchill Downs
CHDN
$6.03B
| $505K | ﹤0.01% |
76
-104
| -58% | -$5.92K |
|
2894
CALL
Fabrinet
FN
$17.1B
| $505K | ﹤0.01% |
81
+11
| +16% | +$675 |
|
2895
CALL
Kennametal
KMT
$2.68B
| $505K | ﹤0.01% |
176
+69
| +64% | +$1.76K |
|
2896
PUT
Landstar System
LSTR
$6.8B
| $505K | ﹤0.01% |
45
-21
| -32% | -$2.24K |
|
2897
CALL
Schneider National
SNDR
$6.59B
| $505K | ﹤0.01% |
205
+135
| +193% | +$2.97K |
|
|
SNV
2898
PUT
DELISTED
Synovus
SNV
| $505K | ﹤0.01% |
246
-171
| -41% | -$3.31K |
|
|
LCI
2899
PUT
DELISTED
Lannett Company, Inc.
LCI
| $504K | ﹤0.01% |
174
+49
| +39% | +$1.52K |
|
|
GLUU
2900
DELISTED
Glu Mobile Inc.
GLUU
| $504K | ﹤0.01% |
+54,393
| New | +$463K |
|
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.