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 | |
|---|---|---|---|---|---|---|
1251
CALL
Wendy's
WEN
$1.37B
| $2.83M | ﹤0.01% |
1,271
+60
| +5% | +$1.32K |
|
1252
PUT
ResMed
RMD
$28.6B
| $2.83M | ﹤0.01% |
165
+131
| +385% | +$24.2K |
|
|
SAGE
1253
CALL
DELISTED
Sage Therapeutics
SAGE
| $2.82M | ﹤0.01% |
462
+164
| +55% | +$8.31K |
|
1254
CALL
Tilray
TLRY
$475M
| $2.82M | ﹤0.01% |
582
-350
| -38% | -$23.4K |
|
1255
CALL
Wolfspeed
WOLF
$1.24B
| $2.82M | ﹤0.01% |
443
+203
| +85% | +$13.1K |
|
1256
PUT
Huazhu Hotels Group
HTHT
$12.5B
| $2.82M | ﹤0.01% |
652
-2,331
| -78% | -$91K |
|
1257
Stanley Black & Decker
SWK
$14.2B
| $2.81M | ﹤0.01% |
+17,345
| New | +$2.7M |
|
1258
Capital One
COF
$125B
| $2.81M | ﹤0.01% |
39,086
-32,310
| -45% | -$2.16M |
|
1259
PUT
Sony
SONY
$124B
| $2.8M | ﹤0.01% |
1,825
+840
| +85% | +$13.1K |
|
1260
Intel
INTC
$487B
| $2.8M | ﹤0.01% |
+54,054
| New | +$2.81M |
|
1261
PUT
Waters Corp
WAT
$37B
| $2.8M | ﹤0.01% |
143
-17
| -11% | -$3.53K |
|
1262
CALL
Cboe Global Markets
CBOE
$29.5B
| $2.78M | ﹤0.01% |
317
+168
| +113% | +$15.1K |
|
1263
Delta Air Lines
DAL
$56.4B
| $2.78M | ﹤0.01% |
90,913
+27,287
| +43% | +$787K |
|
1264
Lumentum
LITE
$60.9B
| $2.78M | ﹤0.01% |
36,967
-5,389
| -13% | -$447K |
|
1265
CALL
Agilent Technologies
A
$39.2B
| $2.77M | ﹤0.01% |
275
-94
| -25% | -$9.08K |
|
1266
PUT
Yeti Holdings
YETI
$3.76B
| $2.77M | ﹤0.01% |
612
-157
| -20% | -$7.44K |
|
|
MOMO
1267
PUT
Hello Group
MOMO
$872M
| $2.77M | ﹤0.01% |
2,015
-1,407
| -41% | -$25.6K |
|
1268
PUT
J.M. Smucker
SJM
$12.6B
| $2.77M | ﹤0.01% |
240
+157
| +189% | +$17.5K |
|
1269
CALL
Oshkosh
OSK
$9.69B
| $2.77M | ﹤0.01% |
377
+302
| +403% | +$23.3K |
|
1270
PUT
Gildan
GIL
$9.29B
| $2.77M | ﹤0.01% |
1,408
-531
| -27% | -$9.82K |
|
1271
CALL
Perrigo
PRGO
$1.42B
| $2.76M | ﹤0.01% |
601
-64
| -10% | -$3.35K |
|
1272
PUT
ICICI Bank
IBN
$106B
| $2.76M | ﹤0.01% |
2,806
+1,645
| +142% | +$16.4K |
|
1273
CALL
PennyMac Financial
PFSI
$4.42B
| $2.75M | ﹤0.01% |
474
-58
| -11% | -$2.88K |
|
|
SINA
1274
PUT
DELISTED
Sina Corp
SINA
| $2.75M | ﹤0.01% |
645
+137
| +27% | +$5.5K |
|
1275
PUT
W.W. Grainger
GWW
$65B
| $2.75M | ﹤0.01% |
77
-8
| -9% | -$2.76K |
|
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.