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 | |
|---|---|---|---|---|---|---|
901
PUT
KKR & Co
KKR
$86.2B
| $3.48M | 0.01% |
1,484
+1,277
| +617% | +$36.7K |
|
902
PUT
Cheniere Energy
LNG
$57B
| $3.48M | 0.01% |
1,039
-47
| -4% | -$2.41K |
|
|
HOLX
903
CALL
DELISTED
Hologic
HOLX
| $3.48M | 0.01% |
991
+606
| +157% | +$28.9K |
|
904
CALL
Viatris
VTRS
$20.1B
| $3.48M | 0.01% |
2,332
+668
| +40% | +$12.8K |
|
905
PUT
C.H. Robinson
CHRW
$24.2B
| $3.48M | 0.01% |
525
+173
| +49% | +$12.4K |
|
906
PUT
Entegris
ENTG
$20.6B
| $3.47M | 0.01% |
776
+355
| +84% | +$18.4K |
|
907
CALL
Akamai
AKAM
$17.1B
| $3.47M | 0.01% |
379
-103
| -21% | -$9.55K |
|
908
PUT
WD-40
WDFC
$3.12B
| $3.45M | 0.01% |
172
+168
| +4,200% | +$31.6K |
|
909
PUT
Credit Acceptance
CACC
$6.2B
| $3.45M | 0.01% |
135
+59
| +78% | +$23.8K |
|
910
Qorvo
QRVO
$7.65B
| $3.45M | 0.01% |
42,795
+31,016
| +263% | +$3.1M |
|
911
PUT
Crown Holdings
CCK
$12.5B
| $3.43M | 0.01% |
591
-652
| -52% | -$45.4K |
|
912
PUT
Ionis Pharmaceuticals
IONS
$9.23B
| $3.43M | 0.01% |
725
-617
| -46% | -$34.4K |
|
|
CTRA
913
PUT
DELISTED
Coterra Energy
CTRA
| $3.42M | 0.01% |
1,992
+1,668
| +515% | +$26.4K |
|
|
BBL
914
CALL
DELISTED
BHP Group Plc American Depositary Shares (Each representing two Ordinary Shares)
BBL
| $3.41M | 0.01% |
1,125
+87
| +8% | +$3.43K |
|
915
PUT
Lincoln Electric
LECO
$13.7B
| $3.39M | 0.01% |
492
+490
| +24,500% | +$42K |
|
|
CLVS
916
CALL
DELISTED
Clovis Oncology, Inc.
CLVS
| $3.39M | 0.01% |
5,334
-207
| -4% | -$1.66K |
|
|
JWN
917
CALL
DELISTED
Nordstrom
JWN
| $3.38M | 0.01% |
2,206
+911
| +70% | +$30.4K |
|
918
CALL
Enbridge
ENB
$123B
| $3.38M | 0.01% |
1,162
+63
| +6% | +$2.33K |
|
919
PUT
Welltower
WELL
$174B
| $3.36M | 0.01% |
734
+390
| +113% | +$28.8K |
|
920
CALL
LyondellBasell Industries
LYB
$19.9B
| $3.36M | 0.01% |
677
+110
| +19% | +$8.09K |
|
921
PUT
Gen Digital
GEN
$15.1B
| $3.35M | 0.01% |
1,791
-51
| -3% | -$1.1K |
|
922
PUT
TripAdvisor
TRIP
$1.57B
| $3.32M | 0.01% |
1,912
+1,073
| +128% | +$27.2K |
|
923
CALL
Teekay Tankers
TNK
$2.62B
| $3.31M | 0.01% |
1,491
-982
| -40% | -$18K |
|
924
CALL
Agilent Technologies
A
$39.5B
| $3.31M | 0.01% |
462
-118
| -20% | -$9.48K |
|
925
PUT
Cognizant
CTSH
$20.3B
| $3.3M | 0.01% |
711
+192
| +37% | +$11.4K |
|
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.