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 | |
|---|---|---|---|---|---|---|
|
KOL
4401
DELISTED
VanEck Vectors Coal ETF
KOL
| $97K | ﹤0.01% |
1,552
+1,430
| +1,172% | +$116K |
|
4402
CVR Energy
CVI
$3.48B
| $96K | ﹤0.01% |
+5,830
| New | +$175K |
|
4403
PUT
Invesco DB Base Metals Fund
DBB
$306M
| $96K | ﹤0.01% |
107
+63
| +143% | +$880 |
|
4404
CALL
Flowers Foods
FLO
$1.58B
| $96K | ﹤0.01% |
47
+5
| +12% | +$109 |
|
4405
PUT
FS KKR Capital
FSK
$3.01B
| $96K | ﹤0.01% |
80
+79
| +7,900% | +$1.69K |
|
4406
PUT
Herc Holdings
HRI
$4.78B
| $96K | ﹤0.01% |
47
-17
| -27% | -$620 |
|
4407
Coca-Cola Femsa
KOF
$22.5B
| $96K | ﹤0.01% |
+2,410
| New | +$136K |
|
4408
CALL
McEwen Inc
MUX
$1B
| $96K | ﹤0.01% |
146
-141
| -49% | -$1.45K |
|
4409
CALL
Nektar Therapeutics
NKTR
$2.39B
| $96K | ﹤0.01% |
4
-47
| -92% | -$14.5K |
|
4410
NMI Holdings
NMIH
$3.37B
| $96K | ﹤0.01% |
8,305
+5,663
| +214% | +$150K |
|
4411
PUT
PBF Energy
PBF
$7.49B
| $96K | ﹤0.01% |
136
+14
| +11% | +$314 |
|
|
PRO
4412
PUT
DELISTED
PROS Holdings
PRO
| $96K | ﹤0.01% |
31
-61
| -66% | -$3.05K |
|
|
LFC
4413
CALL
DELISTED
China Life Insurance Company Ltd.
LFC
| $96K | ﹤0.01% |
99
-313
| -76% | -$3.75K |
|
|
MDP
4414
CALL
DELISTED
Meredith Corporation
MDP
| $96K | ﹤0.01% |
79
+20
| +34% | +$531 |
|
|
LDL
4415
PUT
DELISTED
Lydall, Inc.
LDL
| $96K | ﹤0.01% |
150
+145
| +2,900% | +$2.37K |
|
4416
AGCO
AGCO
$8.41B
| $95K | ﹤0.01% |
2,012
+1,457
| +263% | +$92.6K |
|
4417
CALL
Anika Therapeutics
ANIK
$215M
| $95K | ﹤0.01% |
33
+31
| +1,550% | +$1.25K |
|
4418
PUT
Barnes & Noble Education
BNED
$435M
| $95K | ﹤0.01% |
7
+6
| +600% | +$1.91K |
|
4419
ESCO Technologies
ESE
$7.77B
| $95K | ﹤0.01% |
1,260
-2,274
| -64% | -$208K |
|
4420
Invesco CurrencyShares Swiss Franc Trust
FXF
$411M
| $95K | ﹤0.01% |
+1,005
| New | +$95.6K |
|
4421
PUT
Gates Industrial Corporation Ltd.
GTES
$6.31B
| $95K | ﹤0.01% |
129
-11
| -8% | -$122 |
|
|
HIMX
4422
Himax Technologies
HIMX
$2.03B
| $95K | ﹤0.01% |
34,918
+5,262
| +18% | +$19.8K |
|
4423
PUT
NETGEAR
NTGR
$612M
| $95K | ﹤0.01% |
42
+2
| +5% | +$45 |
|
4424
OR Royalties Inc
OR
$5.53B
| $95K | ﹤0.01% |
12,883
+2,120
| +20% | +$18.8K |
|
4425
PUT
Qualys
QLYS
$4.76B
| $95K | ﹤0.01% |
11
-23
| -68% | -$1.93K |
|
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.