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 | |
|---|---|---|---|---|---|---|
|
MMP
1276
PUT
DELISTED
Magellan Midstream Partners, L.P.
MMP
| $1.99M | ﹤0.01% |
545
-73
| -12% | -$3.92K |
|
1277
Everest Group
EG
$14.9B
| $1.99M | ﹤0.01% |
+10,327
| New | +$2.64M |
|
1278
iShares MSCI Brazil ETF
EWZ
$9.16B
| $1.99M | ﹤0.01% |
+84,315
| New | +$3.26M |
|
1279
CALL
iShares Gold Trust
IAU
$62.9B
| $1.98M | ﹤0.01% |
658
+483
| +276% | +$14.6K |
|
|
SIX
1280
CALL
DELISTED
Six Flags Entertainment Corp.
SIX
| $1.98M | ﹤0.01% |
1,582
+1,141
| +259% | +$33.9K |
|
1281
CALL
Invesco CurrencyShares Euro Currency Trust
FXE
$331M
| $1.98M | ﹤0.01% |
190
-926
| -83% | -$96.7K |
|
1282
CALL
Host Hotels & Resorts
HST
$16.4B
| $1.98M | ﹤0.01% |
1,795
+1,737
| +2,995% | +$26.2K |
|
1283
CALL
Sprouts Farmers Market
SFM
$6.91B
| $1.98M | ﹤0.01% |
1,065
+1,057
| +13,213% | +$17.7K |
|
1284
PUT
Verisk Analytics
VRSK
$25.3B
| $1.98M | ﹤0.01% |
142
-87
| -38% | -$13.6K |
|
1285
CALL
CarMax
KMX
$8.29B
| $1.98M | ﹤0.01% |
367
-98
| -21% | -$8.29K |
|
1286
CALL
HubSpot
HUBS
$9.73B
| $1.97M | ﹤0.01% |
148
+87
| +143% | +$14.5K |
|
1287
Medtronic
MDT
$105B
| $1.97M | ﹤0.01% |
21,851
-22,328
| -51% | -$2.38M |
|
1288
NewMarket
NEU
$7.08B
| $1.97M | ﹤0.01% |
5,136
+3,205
| +166% | +$1.35M |
|
|
1289
PUT
Host Hotels & Resorts
HST
$16.4B
| $1.96M | ﹤0.01% |
1,779
+1,573
| +764% | +$23.8K |
|
1290
Pinduoduo
PDD
$119B
| $1.96M | ﹤0.01% |
54,528
+49,030
| +892% | +$1.79M |
|
|
ABB
1291
DELISTED
ABB Ltd
ABB
| $1.96M | ﹤0.01% |
+113,764
| New | +$2.48M |
|
1292
CALL
Consolidated Edison
ED
$41.6B
| $1.96M | ﹤0.01% |
251
-151
| -38% | -$13.2K |
|
1293
PUT
Perrigo
PRGO
$1.4B
| $1.96M | ﹤0.01% |
407
+91
| +29% | +$4.88K |
|
|
PVG
1294
PUT
DELISTED
PRETIUM RESOURCES INC.
PVG
| $1.95M | ﹤0.01% |
3,438
+3,081
| +863% | +$26.3K |
|
1295
CALL
Shake Shack
SHAK
$2.26B
| $1.95M | ﹤0.01% |
516
-332
| -39% | -$19.7K |
|
1296
PUT
Tandem Diabetes Care
TNDM
$1.16B
| $1.94M | ﹤0.01% |
302
+102
| +51% | +$7.15K |
|
1297
UBS Group
UBS
$169B
| $1.94M | ﹤0.01% |
209,400
+184,141
| +729% | +$2.12M |
|
1298
PUT
PENN Entertainment
PENN
$2.71B
| $1.94M | ﹤0.01% |
1,530
+1,497
| +4,536% | +$37.6K |
|
|
JWN
1299
PUT
DELISTED
Nordstrom
JWN
| $1.93M | ﹤0.01% |
1,260
-1,493
| -54% | -$49.8K |
|
1300
Kimberly-Clark
KMB
$35.6B
| $1.93M | ﹤0.01% |
+15,109
| New | +$2.09M |
|
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.