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 |
Amazon
AMZN
|
+$102M |
| 2 |
TSMC
TSM
|
+$27.8M |
| 3 |
JPMorgan Chase
JPM
|
+$22.4M |
| 4 |
Boeing
BA
|
+$19.4M |
| 5 |
ExxonMobil
XOM
|
+$14.7M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
SPDR Gold Trust
GLD
|
+$95.5M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$79.6M |
| 3 |
Tesla
TSLA
|
+$75.3M |
| 4 |
NVIDIA
NVDA
|
+$51.6M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
+$40.5M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Consumer Discretionary | 0.53% |
| 2 | Technology | 0.4% |
| 3 | Healthcare | 0.22% |
| 4 | Financials | 0.21% |
| 5 | Communication Services | 0.18% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
3151
ProShares Short 20+ Year Treasury ETF
TBF
$86.3M
| $442K | ﹤0.01% |
28,788
+25,518
| +780% | +$388K |
|
3152
PUT
GoPro
GPRO
$118M
| $441K | ﹤0.01% |
975
+113
| +13% | +$531 |
|
3153
PUT
H&R Block
HRB
$5.39B
| $441K | ﹤0.01% |
271
-691
| -72% | -$10.2K |
|
3154
CALL
Donaldson
DCI
$10.7B
| $440K | ﹤0.01% |
95
+68
| +252% | +$3.31K |
|
3155
PUT
Omnicell
OMCL
$1.89B
| $440K | ﹤0.01% |
+59
| New | +$4.09K |
|
3156
PUT
United States Gasoline Fund
UGA
$144M
| $440K | ﹤0.01% |
221
-127
| -36% | -$2.51K |
|
|
PSTH
3157
CALL
DELISTED
Pershing Square Tontine Holdings, Ltd.
PSTH
| $440K | ﹤0.01% |
+212
| New | +$4.76K |
|
|
QLTB
3158
CALL
DELISTED
ISHARES BAA BA RATED CORP BOND FUND
QLTB
| $440K | ﹤0.01% |
65
-23
| -26% | -$156K |
|
3159
CALL
National Grid
NGG
$81.7B
| $439K | ﹤0.01% |
86
-88
| -51% | -$4.42K |
|
3160
PUT
Vir Biotechnology
VIR
$1.5B
| $439K | ﹤0.01% |
128
+89
| +228% | +$3.83K |
|
3161
CALL
Extra Space Storage
EXR
$31.3B
| $438K | ﹤0.01% |
41
+5
| +14% | +$517 |
|
3162
PUT
BRC Group Holdings
RILY
$266M
| $438K | ﹤0.01% |
175
+110
| +169% | +$2.77K |
|
3163
Rithm Capital
RITM
$5.16B
| $438K | ﹤0.01% |
55,187
+18,360
| +50% | +$141K |
|
|
TWOU
3164
DELISTED
2U Inc
TWOU
| $438K | ﹤0.01% |
431
-110
| -20% | -$131K |
|
|
LSI
3165
DELISTED
Life Storage, Inc.
LSI
| $438K | ﹤0.01% |
6,254
-13,774
| -69% | -$933K |
|
3166
CALL
Evergy
EVRG
$19.8B
| $437K | ﹤0.01% |
86
-441
| -84% | -$24.7K |
|
|
THS
3167
CALL
DELISTED
Treehouse Foods
THS
| $437K | ﹤0.01% |
108
-124
| -53% | -$5.28K |
|
|
FIT
3168
PUT
DELISTED
Fitbit, Inc. Class A common stock
FIT
| $437K | ﹤0.01% |
629
-29
| -4% | -$188 |
|
3169
Clearfield
CLFD
$418M
| $436K | ﹤0.01% |
21,617
+21,481
| +15,795% | +$385K |
|
3170
Cimpress
CMPR
$2.4B
| $436K | ﹤0.01% |
5,805
+5,334
| +1,132% | +$457K |
|
3171
Omega Healthcare
OHI
$15.3B
| $436K | ﹤0.01% |
14,585
-8,471
| -37% | -$264K |
|
3172
VF Corp
VFC
$6.69B
| $436K | ﹤0.01% |
6,214
-12,839
| -67% | -$829K |
|
|
AAN.A
3173
PUT
DELISTED
The Aaron's Company Inc Class A
AAN.A
| $436K | ﹤0.01% |
77
-11
| -13% | -$62.3K |
|
3174
CALL
Ameris Bancorp
ABCB
$5.77B
| $435K | ﹤0.01% |
191
+103
| +117% | +$2.42K |
|
3175
PUT
Banco Santander
SAN
$198B
| $435K | ﹤0.01% |
2,457
+59
| +2% | +$127 |
|
Similar funds
Simplex Trading's Q3 2020 Portfolio in Review
As of Q3 2020, Simplex Trading held 9,056 positions worth $73.5B, up 17% from $62.7B the previous quarter. Its ten largest holdings account for 43% of the portfolio.
Simplex Trading's Q3 2020 filing shows 1,403 new, 3,135 increased, 3,122 reduced and 1,191 closed positions. Its largest new stake was Goldman Sachs: 60,397 shares worth $12.1M. The largest sale was SPDR Gold Trust, an estimated $95.5M.
By sector, the portfolio is most concentrated in Consumer Discretionary at 0.53% of assets, up from 0.47% a quarter earlier, followed by Technology and Healthcare.
- Simplex Trading's largest Q3 2020 buy was Goldman Sachs: 60,397 shares worth $12.1M.
- Simplex Trading added most to Amazon in Q3 2020, an estimated $102M increase.
- Simplex Trading's biggest Q3 2020 reduction was SPDR Gold Trust, cutting an estimated $95.5M.
- Simplex Trading fully exited iShares MSCI EAFE ETF in Q3 2020, selling an estimated $40.5M.
- Simplex Trading's ten largest holdings make up 43% of its $73.5B portfolio in Q3 2020.
- Simplex Trading opened 1,403 new positions and closed 1,191 in Q3 2020.
- Simplex Trading's portfolio value rose 17% quarter-over-quarter to $73.5B.
Based on Simplex Trading's 13F filing for Q3 2020, filed 14 Oct 2020.