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 |
SPDR Gold Trust
GLD
|
+$31.6M |
| 2 |
iShares Silver Trust
SLV
|
+$28.1M |
| 3 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$25.1M |
| 4 |
JPMorgan Chase
JPM
|
+$24.5M |
| 5 |
Direxion Daily Junior Gold Miners Index Bull 2X ETF
JNUG
|
+$24M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Alphabet (Google) Class C
GOOG
|
+$51.6M |
| 2 |
Amazon
AMZN
|
+$47.4M |
| 3 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$44.7M |
| 4 |
Netflix
NFLX
|
+$38.3M |
| 5 |
NVIDIA
NVDA
|
+$31.1M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.49% |
| 2 | Healthcare | 0.33% |
| 3 | Consumer Discretionary | 0.32% |
| 4 | Financials | 0.16% |
| 5 | Communication Services | 0.16% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1251
CALL
AstraZeneca
AZN
$261B
| $2.08M | ﹤0.01% |
233
-76
| -25% | -$7.16K |
|
1252
PUT
Paychex
PAYX
$39.4B
| $2.08M | ﹤0.01% |
330
+4
| +1% | +$320 |
|
1253
CALL
International Paper
IP
$20.1B
| $2.07M | ﹤0.01% |
703
-857
| -55% | -$31.8K |
|
|
EGRX
1254
PUT
DELISTED
Eagle Pharmaceuticals, Inc.
EGRX
| $2.07M | ﹤0.01% |
450
+80
| +22% | +$4.01K |
|
|
DQ
1255
PUT
Daqo New Energy
DQ
$806M
| $2.07M | ﹤0.01% |
1,785
+1,315
| +280% | +$15.4K |
|
1256
CALL
WIX.com
WIX
$2.04B
| $2.07M | ﹤0.01% |
205
-194
| -49% | -$25.3K |
|
1257
PUT
Yeti Holdings
YETI
$3.8B
| $2.06M | ﹤0.01% |
1,057
+912
| +629% | +$27K |
|
1258
ZTO Express
ZTO
$18.3B
| $2.06M | ﹤0.01% |
+77,848
| New | +$1.89M |
|
|
CEO
1259
PUT
DELISTED
CNOOC Limited
CEO
| $2.06M | ﹤0.01% |
199
+83
| +72% | +$11.8K |
|
1260
PUT
Adient
ADNT
$1.58B
| $2.06M | ﹤0.01% |
2,270
+1,518
| +202% | +$30.6K |
|
|
FL
1261
PUT
DELISTED
Foot Locker
FL
| $2.06M | ﹤0.01% |
933
+27
| +3% | +$918 |
|
|
JOYY
1262
PUT
JOYY Inc
JOYY
$3.66B
| $2.05M | ﹤0.01% |
385
-134
| -26% | -$7.78K |
|
1263
CALL
Bank of Montreal
BMO
$124B
| $2.04M | ﹤0.01% |
407
-55
| -12% | -$3.73K |
|
1264
American Express
AXP
$233B
| $2.03M | ﹤0.01% |
23,742
-12,302
| -34% | -$1.43M |
|
1265
CALL
Wyndham Hotels & Resorts
WH
$5.5B
| $2.03M | ﹤0.01% |
645
+215
| +50% | +$10.9K |
|
|
BFYT
1266
CALL
DELISTED
Benefytt Technologies, Inc. Class A Common Stock
BFYT
| $2.03M | ﹤0.01% |
906
-1,483
| -62% | -$35.2K |
|
1267
Cameco
CCJ
$38.9B
| $2.03M | ﹤0.01% |
265,291
+152,123
| +134% | +$1.25M |
|
|
ATH
1268
DELISTED
Athene Holding Ltd. Class A Common Shares
ATH
| $2.02M | ﹤0.01% |
81,457
+41,434
| +104% | +$1.65M |
|
1269
CALL
Stanley Black & Decker
SWK
$13.6B
| $2.02M | ﹤0.01% |
202
-285
| -59% | -$40.7K |
|
1270
PUT
Ares Capital
ARCC
$13.4B
| $2.01M | ﹤0.01% |
1,866
+1,005
| +117% | +$17K |
|
1271
CALL
Voya Financial
VOYA
$8.78B
| $2M | ﹤0.01% |
493
+245
| +99% | +$13.4K |
|
1272
TAL Education Group
TAL
$5.74B
| $2M | ﹤0.01% |
37,528
+4,515
| +14% | +$243K |
|
1273
CALL
Jacobs Solutions
J
$15.6B
| $2M | ﹤0.01% |
305
+246
| +417% | +$18.5K |
|
1274
T. Rowe Price
TROW
$24.6B
| $2M | ﹤0.01% |
+20,454
| New | +$2.5M |
|
1275
PUT
Textron
TXT
$16.2B
| $1.99M | ﹤0.01% |
747
-294
| -28% | -$11.9K |
|
Similar funds
Simplex Trading's Q1 2020 Portfolio in Review
As of Q1 2020, Simplex Trading held 8,783 positions worth $56.7B, up 24% from $45.7B the previous quarter. Its ten largest holdings account for 50% of the portfolio.
Simplex Trading's Q1 2020 filing shows 1,512 new, 3,249 increased, 2,705 reduced and 1,159 closed positions. Its largest new stake was SPDR Gold Trust: 212,230 shares worth $31.4M. The largest sale was Alphabet (Google) Class C, an estimated $51.6M.
By sector, the portfolio is most concentrated in Technology at 0.49% of assets, down from 0.75% a quarter earlier, followed by Healthcare and Consumer Discretionary.
- Simplex Trading's largest Q1 2020 buy was SPDR Gold Trust: 212,230 shares worth $31.4M.
- Simplex Trading added most to JPMorgan Chase in Q1 2020, an estimated $24.5M increase.
- Simplex Trading's biggest Q1 2020 reduction was Amazon, cutting an estimated $47.4M.
- Simplex Trading fully exited Alphabet (Google) Class C in Q1 2020, selling an estimated $51.6M.
- Simplex Trading's ten largest holdings make up 50% of its $56.7B portfolio in Q1 2020.
- Simplex Trading opened 1,512 new positions and closed 1,159 in Q1 2020.
- Simplex Trading's portfolio value rose 24% quarter-over-quarter to $56.7B.
Based on Simplex Trading's 13F filing for Q1 2020, filed 29 Apr 2020.