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 | |
|---|---|---|---|---|---|---|
3151
CALL
Matador Resources
MTDR
$6.31B
| $412K | ﹤0.01% |
485
-102
| -17% | -$713 |
|
3152
FTAI Aviation
FTAI
$22.2B
| $411K | ﹤0.01% |
37,054
+32,118
| +651% | +$294K |
|
3153
PUT
GoPro
GPRO
$116M
| $410K | ﹤0.01% |
862
-2,027
| -70% | -$7.69K |
|
3154
CALL
Howard Hughes
HHH
$3.93B
| $410K | ﹤0.01% |
83
+36
| +77% | +$1.81K |
|
3155
PUT
Alaunos Therapeutics
TCRT
$4.74M
| $410K | ﹤0.01% |
8
+2
| +33% | +$892 |
|
|
PRVB
3156
CALL
DELISTED
Provention Bio, Inc. Common Stock
PRVB
| $409K | ﹤0.01% |
290
-8
| -3% | -$101 |
|
3157
PUT
Arcos Dorados Holdings
ARCO
$1.73B
| $408K | ﹤0.01% |
1,003
+944
| +1,600% | +$3.52K |
|
3158
PUT
Ares Management
ARES
$28.5B
| $408K | ﹤0.01% |
103
+102
| +10,200% | +$3.6K |
|
3159
Hilltop Holdings
HTH
$2.29B
| $407K | ﹤0.01% |
22,099
-5,146
| -19% | -$88.4K |
|
3160
PUT
Intellia Therapeutics
NTLA
$1.5B
| $407K | ﹤0.01% |
194
-190
| -49% | -$3.23K |
|
3161
Viatris
VTRS
$20.1B
| $407K | ﹤0.01% |
+25,326
| New | +$411K |
|
3162
CALL
American Financial Group
AFG
$11.9B
| $406K | ﹤0.01% |
64
+26
| +68% | +$1.68K |
|
|
DCPH
3163
PUT
DELISTED
Deciphera Pharmaceuticals, Inc. Common Stock
DCPH
| $406K | ﹤0.01% |
68
+34
| +100% | +$1.82K |
|
3164
CALL
Tenet Healthcare
THC
$20.1B
| $405K | ﹤0.01% |
224
-294
| -57% | -$5.79K |
|
|
QIWI
3165
DELISTED
QIWI PLC
QIWI
| $405K | ﹤0.01% |
23,409
-3,934
| -14% | -$53.4K |
|
3166
CALL
Banco Santander
SAN
$194B
| $404K | ﹤0.01% |
1,751
+852
| +95% | +$1.86K |
|
3167
PUT
Steel Dynamics
STLD
$35.6B
| $404K | ﹤0.01% |
155
-153
| -50% | -$3.83K |
|
3168
PUT
Flowserve
FLS
$9.25B
| $402K | ﹤0.01% |
141
+123
| +683% | +$3.28K |
|
3169
Louisiana-Pacific
LPX
$5.2B
| $402K | ﹤0.01% |
+15,711
| New | +$333K |
|
3170
CALL
Monolithic Power Systems
MPWR
$65.5B
| $402K | ﹤0.01% |
17
+13
| +325% | +$2.63K |
|
3171
The RealReal
REAL
$1.34B
| $402K | ﹤0.01% |
31,501
+7,299
| +30% | +$86.9K |
|
3172
CALL
KALA BIO
KALA
$11.8M
| – | – |
0
| – | – |
|
|
HEP
3173
CALL
DELISTED
Holly Energy Partners, L.P.
HEP
| $401K | ﹤0.01% |
275
+98
| +55% | +$1.44K |
|
3174
PUT
Angi Inc
ANGI
$224M
| $400K | ﹤0.01% |
33
+24
| +267% | +$2.19K |
|
3175
CALL
DMC Global
BOOM
$121M
| $400K | ﹤0.01% |
145
+95
| +190% | +$2.62K |
|
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.