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 | |
|---|---|---|---|---|---|---|
3276
PUT
Urban Outfitters
URBN
$6.23B
| $262K | ﹤0.01% |
184
+68
| +59% | +$1.58K |
|
3277
Williams Companies
WMB
$87.4B
| $262K | ﹤0.01% |
18,534
+16,773
| +952% | +$325K |
|
|
CODX
3278
PUT
Co-Diagnostics
CODX
$7.33M
| $261K | ﹤0.01% |
+11
| New | +$1.91K |
|
3279
iShares US Healthcare Providers ETF
IHF
$1.22B
| $261K | ﹤0.01% |
7,835
+7,445
| +1,909% | +$282K |
|
3280
PUT
LPL Financial
LPLA
$26.5B
| $261K | ﹤0.01% |
48
-10
| -17% | -$806 |
|
3281
PUT
Sunoco
SUN
$14.1B
| $261K | ﹤0.01% |
167
-31
| -16% | -$832 |
|
|
SHLX
3282
DELISTED
Shell Midstream Partners, L.P.
SHLX
| $261K | ﹤0.01% |
26,233
+25,980
| +10,269% | +$443K |
|
3283
VirnetX Holding Corp
VHC
$49.7M
| $260K | ﹤0.01% |
2,385
+1,024
| +75% | +$97.1K |
|
|
FOCS
3284
CALL
DELISTED
Focus Financial Partners Inc. Class A
FOCS
| $260K | ﹤0.01% |
113
+98
| +653% | +$2.6K |
|
3285
PUT
Equinor
EQNR
$92.5B
| $259K | ﹤0.01% |
213
+129
| +154% | +$2.08K |
|
3286
Vanguard Long-Term Corporate Bond ETF
VCLT
$8.86B
| $259K | ﹤0.01% |
+2,672
| New | +$271K |
|
3287
Aramark
ARMK
$15.1B
| $258K | ﹤0.01% |
+17,915
| New | +$472K |
|
|
DCH
3288
PUT
Dauch Corp
DCH
$1.3B
| $258K | ﹤0.01% |
716
+288
| +67% | +$2.14K |
|
3289
B&G Foods
BGS
$292M
| $258K | ﹤0.01% |
14,281
+7,249
| +103% | +$114K |
|
3290
PUT
GameStop
GME
$9.62B
| $258K | ﹤0.01% |
2,952
-1,592
| -35% | -$1.71K |
|
3291
CALL
IAMGOLD
IAG
$8.39B
| $258K | ﹤0.01% |
1,132
+928
| +455% | +$2.69K |
|
3292
CALL
MakeMyTrip
MMYT
$4.94B
| $258K | ﹤0.01% |
216
+213
| +7,100% | +$4.61K |
|
3293
PUT
OR Royalties Inc
OR
$5.5B
| $258K | ﹤0.01% |
348
+303
| +673% | +$2.69K |
|
3294
PennyMac Financial
PFSI
$4.39B
| $258K | ﹤0.01% |
+11,690
| New | +$376K |
|
3295
RH
RH
$3.41B
| $258K | ﹤0.01% |
2,577
-6,875
| -73% | -$1.28M |
|
|
AMRS
3296
PUT
DELISTED
Amyris Inc.
AMRS
| $258K | ﹤0.01% |
1,010
-1,048
| -51% | -$3.06K |
|
|
CLDR
3297
PUT
DELISTED
Cloudera, Inc.
CLDR
| $258K | ﹤0.01% |
329
-451
| -58% | -$4.4K |
|
|
I
3298
DELISTED
INTELSAT S. A.
I
| $258K | ﹤0.01% |
168,646
+49,795
| +42% | +$209K |
|
3299
CALL
Cerence
CRNC
$376M
| $257K | ﹤0.01% |
167
+157
| +1,570% | +$3.3K |
|
3300
CALL
Pinnacle West Capital
PNW
$12.8B
| $257K | ﹤0.01% |
34
-42
| -55% | -$3.81K |
|
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.