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 | |
|---|---|---|---|---|---|---|
3951
CALL
Open Text
OTEX
$5.97B
| $208K | ﹤0.01% |
49
-6
| -11% | -$238 |
|
3952
CALL
Ameris Bancorp
ABCB
$5.88B
| $207K | ﹤0.01% |
88
-137
| -61% | -$3.21K |
|
3953
Aramark
ARMK
$15.1B
| $207K | ﹤0.01% |
12,710
-5,205
| -29% | -$91.3K |
|
3954
Enova International
ENVA
$6.17B
| $207K | ﹤0.01% |
+13,938
| New | +$194K |
|
3955
PUT
KBR
KBR
$4.75B
| $207K | ﹤0.01% |
92
+88
| +2,200% | +$1.91K |
|
3956
PUT
KeyCorp
KEY
$24.1B
| $207K | ﹤0.01% |
170
+37
| +28% | +$430 |
|
|
MITT
3957
PUT
TPG Mortgage Investment Trust
MITT
$231M
| $207K | ﹤0.01% |
217
+194
| +843% | +$1.85K |
|
3958
Mettler-Toledo International
MTD
$28B
| $207K | ﹤0.01% |
257
+197
| +328% | +$147K |
|
3959
PUT
Navios Maritime Partners
NMM
$2.24B
| $207K | ﹤0.01% |
214
+199
| +1,327% | +$1.43K |
|
|
TGR
3960
PUT
DELISTED
ISHARES TARGET DATE RETIREMENT INCOME ETF
TGR
| $207K | ﹤0.01% |
146
-1,575
| -92% | -$2.23M |
|
3961
CALL
Assurant
AIZ
$13.9B
| $206K | ﹤0.01% |
20
-23
| -53% | -$2.38K |
|
3962
PUT
AXIS Capital
AXS
$8.77B
| $206K | ﹤0.01% |
51
+46
| +920% | +$1.77K |
|
3963
CALL
Mid-America Apartment Communities
MAA
$15.8B
| $206K | ﹤0.01% |
18
-34
| -65% | -$3.83K |
|
3964
CALL
New Mountain Finance
NMFC
$666M
| $206K | ﹤0.01% |
222
+187
| +534% | +$1.54K |
|
3965
PUT
Amcor
AMCR
$21.6B
| $205K | ﹤0.01% |
40
+38
| +1,900% | +$1.77K |
|
|
BPT
3966
CALL
DELISTED
BP Prudhoe Bay Royalty Trust
BPT
| $205K | ﹤0.01% |
618
-880
| -59% | -$3.71K |
|
3967
PUT
Empire State Realty Trust
ESRT
$979M
| $205K | ﹤0.01% |
294
+278
| +1,738% | +$2.15K |
|
3968
Kulicke & Soffa
KLIC
$4.74B
| $205K | ﹤0.01% |
9,866
+5,699
| +137% | +$129K |
|
3969
PUT
Sun Life Financial
SLF
$46.7B
| $205K | ﹤0.01% |
56
+19
| +51% | +$653 |
|
3970
PUT
WillScot Mobile Mini Holdings
WSC
$4.68B
| $205K | ﹤0.01% |
167
+99
| +146% | +$1.22K |
|
3971
PUT
Yext
YEXT
$568M
| $205K | ﹤0.01% |
124
+112
| +933% | +$1.57K |
|
|
ONC
3972
BeOne Medicines Ltd
ONC
$34.1B
| $205K | ﹤0.01% |
1,092
+754
| +223% | +$123K |
|
|
MANT
3973
PUT
DELISTED
Mantech International Corp
MANT
| $205K | ﹤0.01% |
+30
| New | +$2.21K |
|
3974
PUT
DTE Energy
DTE
$30.6B
| $204K | ﹤0.01% |
22
-44
| -67% | -$3.89K |
|
|
ACH
3975
PUT
Accendra Health
ACH
$247M
| $204K | ﹤0.01% |
269
+204
| +314% | +$1.49K |
|
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.