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 | |
|---|---|---|---|---|---|---|
|
RWT
1176
PUT
Redwood Trust
RWT
$626M
| $3.09M | ﹤0.01% |
4,112
+2,534
| +161% | +$17.9K |
|
1177
CALL
Apollo Global Management
APO
$70.3B
| $3.09M | ﹤0.01% |
690
-335
| -33% | -$16.1K |
|
|
PARA
1178
DELISTED
Paramount Global Class B
PARA
| $3.09M | ﹤0.01% |
110,229
+40,118
| +57% | +$1.07M |
|
1179
Restaurant Brands International
QSR
$25.4B
| $3.08M | ﹤0.01% |
+53,569
| New | +$2.99M |
|
1180
CALL
Boston Scientific
BSX
$66.4B
| $3.08M | ﹤0.01% |
806
-879
| -52% | -$33.9K |
|
|
FITB
1181
PUT
Fifth Third Bancorp
FITB
$52.3B
| $3.08M | ﹤0.01% |
1,443
+271
| +23% | +$5.46K |
|
1182
CALL
Papa John's
PZZA
$1.02B
| $3.07M | ﹤0.01% |
373
-225
| -38% | -$20.7K |
|
1183
Pool Corp
POOL
$6.69B
| $3.06M | ﹤0.01% |
9,164
+8,654
| +1,697% | +$2.68M |
|
1184
PUT
Invitation Homes
INVH
$17.6B
| $3.06M | ﹤0.01% |
1,095
-148
| -12% | -$4.22K |
|
1185
PUT
Boston Properties
BXP
$11B
| $3.06M | ﹤0.01% |
381
+40
| +12% | +$3.49K |
|
1186
Pinterest
PINS
$12.6B
| $3.06M | ﹤0.01% |
73,679
-168,874
| -70% | -$5.51M |
|
|
OPTU
1187
PUT
Optimum Communications Inc
OPTU
$326M
| $3.06M | ﹤0.01% |
1,176
-438
| -27% | -$11.4K |
|
|
JOBS
1188
PUT
DELISTED
51job Inc
JOBS
| $3.06M | ﹤0.01% |
392
+319
| +437% | +$22.2K |
|
1189
CALL
Lithia Motors
LAD
$7.84B
| $3.05M | ﹤0.01% |
134
+108
| +415% | +$24.3K |
|
1190
PUT
Seagate
STX
$198B
| $3.05M | ﹤0.01% |
620
+28
| +5% | +$1.32K |
|
1191
PUT
Brinker International
EAT
$8.1B
| $3.04M | ﹤0.01% |
712
+353
| +98% | +$12.3K |
|
|
PVG
1192
CALL
DELISTED
PRETIUM RESOURCES INC.
PVG
| $3.04M | ﹤0.01% |
2,365
+777
| +49% | +$8.75K |
|
1193
PUT
Guidewire Software
GWRE
$11.7B
| $3.03M | ﹤0.01% |
291
+55
| +23% | +$6.18K |
|
1194
CALL
United Parks & Resorts
PRKS
$2.14B
| $3.03M | ﹤0.01% |
1,538
-1,271
| -45% | -$23.2K |
|
1195
CALL
Kohl's
KSS
$2.1B
| $3.03M | ﹤0.01% |
1,634
+255
| +18% | +$5.4K |
|
1196
PUT
KLA
KLAC
$280B
| $3.02M | ﹤0.01% |
1,560
-450
| -22% | -$8.89K |
|
1197
PUT
PPG Industries
PPG
$26.2B
| $3M | ﹤0.01% |
246
-271
| -52% | -$31.7K |
|
1198
CALL
Dropbox
DBX
$6.85B
| $3M | ﹤0.01% |
1,558
-636
| -29% | -$13.2K |
|
1199
PUT
Copart
CPRT
$26B
| $3M | ﹤0.01% |
1,140
-1,784
| -61% | -$43.2K |
|
1200
PUT
Diageo
DEO
$46.4B
| $2.99M | ﹤0.01% |
217
-198
| -48% | -$27.3K |
|
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.