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 |
Invesco QQQ Trust
QQQ
|
+$77.3M |
| 2 |
SPDR Gold Trust
GLD
|
+$73.2M |
| 3 |
iShares MSCI EAFE ETF
EFA
|
+$38.5M |
| 4 |
Netflix
NFLX
|
+$38.4M |
| 5 |
NVIDIA
NVDA
|
+$36.3M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$55.9M |
| 2 |
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
|
+$28.3M |
| 3 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$23.1M |
| 4 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$23.1M |
| 5 |
Adobe
ADBE
|
+$22M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.49% |
| 2 | Consumer Discretionary | 0.47% |
| 3 | Communication Services | 0.34% |
| 4 | Healthcare | 0.26% |
| 5 | Financials | 0.23% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
ACB
1376
PUT
Aurora Cannabis
ACB
$165M
| $2.39M | ﹤0.01% |
192
+181
| +1,645% | +$20.6K |
|
1377
PUT
Enbridge
ENB
$124B
| $2.39M | ﹤0.01% |
785
+326
| +71% | +$10K |
|
1378
PUT
Gaming and Leisure Properties
GLPI
$12.8B
| $2.39M | ﹤0.01% |
690
+549
| +389% | +$17.1K |
|
1379
CALL
Winnebago Industries
WGO
$870M
| $2.37M | ﹤0.01% |
356
+307
| +627% | +$15.7K |
|
1380
CALL
Telus
TU
$16B
| $2.37M | ﹤0.01% |
1,413
+1,373
| +3,433% | +$22.8K |
|
|
REGI
1381
PUT
DELISTED
Renewable Energy Group, Inc.
REGI
| $2.36M | ﹤0.01% |
952
-221
| -19% | -$5.6K |
|
1382
PUT
HF Sinclair
DINO
$15.9B
| $2.36M | ﹤0.01% |
807
+68
| +9% | +$2.02K |
|
1383
CALL
TripAdvisor
TRIP
$1.59B
| $2.35M | ﹤0.01% |
1,239
+407
| +49% | +$7.78K |
|
1384
CALL
Neurocrine Biosciences
NBIX
$17.7B
| $2.35M | ﹤0.01% |
193
-64
| -25% | -$7.07K |
|
1385
PUT
Cadence Design Systems
CDNS
$90B
| $2.35M | ﹤0.01% |
245
+210
| +600% | +$17.6K |
|
1386
Nutanix
NTNX
$14.9B
| $2.34M | ﹤0.01% |
98,799
+55,572
| +129% | +$1.15M |
|
|
MAXR
1387
CALL
DELISTED
Maxar Technologies Inc. Common Stock
MAXR
| $2.34M | ﹤0.01% |
1,302
-253
| -16% | -$3.27K |
|
|
CHL
1388
DELISTED
China Mobile Limited
CHL
| $2.34M | ﹤0.01% |
+69,505
| New | +$2.57M |
|
|
SIX
1389
CALL
DELISTED
Six Flags Entertainment Corp.
SIX
| $2.33M | ﹤0.01% |
1,214
-368
| -23% | -$7.32K |
|
1390
CALL
Digital Realty Trust
DLR
$73.7B
| $2.33M | ﹤0.01% |
164
-293
| -64% | -$41.5K |
|
1391
PUT
Chemours
CC
$2.59B
| $2.33M | ﹤0.01% |
1,516
+262
| +21% | +$3.31K |
|
1392
CALL
DTE Energy
DTE
$31.1B
| $2.31M | ﹤0.01% |
253
+154
| +156% | +$13.6K |
|
1393
PUT
Nokia
NOK
$50.8B
| $2.31M | ﹤0.01% |
5,246
-2,660
| -34% | -$10.1K |
|
1394
PUT
Ecolab
ECL
$75.6B
| $2.31M | ﹤0.01% |
116
-38
| -25% | -$7.36K |
|
|
MRTX
1395
PUT
DELISTED
Mirati Therapeutics, Inc. Common Stock
MRTX
| $2.31M | ﹤0.01% |
202
+120
| +146% | +$11.6K |
|
|
DNKN
1396
PUT
DELISTED
Dunkin' Brands Group, Inc.
DNKN
| $2.3M | ﹤0.01% |
353
+153
| +77% | +$9.52K |
|
1397
CALL
Northern Trust
NTRS
$22.2B
| $2.3M | ﹤0.01% |
290
-46
| -14% | -$3.65K |
|
|
PFPT
1398
PUT
DELISTED
Proofpoint, Inc.
PFPT
| $2.3M | ﹤0.01% |
207
+196
| +1,782% | +$22.4K |
|
1399
CALL
NRG Energy
NRG
$29.8B
| $2.3M | ﹤0.01% |
706
+271
| +62% | +$8.92K |
|
1400
CALL
iShares Convertible Bond ETF
ICVT
$7.23B
| $2.29M | ﹤0.01% |
916
-594
| -39% | -$37.7K |
|
Similar funds
Simplex Trading's Q2 2020 Portfolio in Review
As of Q2 2020, Simplex Trading held 8,917 positions worth $62.7B, up 11% from $56.7B the previous quarter. Its ten largest holdings account for 44% of the portfolio.
Simplex Trading's Q2 2020 filing shows 1,290 new, 3,427 increased, 2,723 reduced and 1,278 closed positions. Its largest new stake was iShares MSCI EAFE ETF: 665,841 shares worth $40.5M. The largest sale was Apple, an estimated $55.9M.
By sector, the portfolio is most concentrated in Technology at 0.49% of assets, up from 0.49% a quarter earlier, followed by Consumer Discretionary and Communication Services.
- Simplex Trading's largest Q2 2020 buy was iShares MSCI EAFE ETF: 665,841 shares worth $40.5M.
- Simplex Trading added most to Invesco QQQ Trust in Q2 2020, an estimated $77.3M increase.
- Simplex Trading's biggest Q2 2020 reduction was Apple, cutting an estimated $55.9M.
- Simplex Trading fully exited Adobe in Q2 2020, selling an estimated $22M.
- Simplex Trading's ten largest holdings make up 44% of its $62.7B portfolio in Q2 2020.
- Simplex Trading opened 1,290 new positions and closed 1,278 in Q2 2020.
- Simplex Trading's portfolio value rose 11% quarter-over-quarter to $62.7B.
Based on Simplex Trading's 13F filing for Q2 2020, filed 13 Jul 2020.