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 | |
|---|---|---|---|---|---|---|
251
CALL
Amgen
AMGN
$198B
| $25.3M | 0.04% |
1,072
+503
| +88% | +$115K |
|
252
CALL
Pfizer
PFE
$141B
| $24.7M | 0.04% |
7,977
-5,828
| -42% | -$198K |
|
|
TWTR
253
CALL
DELISTED
Twitter, Inc.
TWTR
| $24.7M | 0.04% |
8,304
-1,690
| -17% | -$51K |
|
254
CALL
Expedia Group
EXPE
$31.3B
| $24.7M | 0.04% |
3,004
-2,454
| -45% | -$178K |
|
255
CALL
Marathon Petroleum
MPC
$92.2B
| $24.6M | 0.04% |
6,569
+2,387
| +57% | +$76.7K |
|
256
CALL
Wayfair
W
$11.1B
| $24.5M | 0.04% |
1,240
-190
| -13% | -$28.4K |
|
257
CALL
Trade Desk
TTD
$8.26B
| $24.4M | 0.04% |
6,010
-3,850
| -39% | -$116K |
|
|
258
PUT
Amgen
AMGN
$198B
| $24.4M | 0.04% |
1,035
-799
| -44% | -$182K |
|
259
PUT
Gaotu Techedu
GOTU
$396M
| $24.4M | 0.04% |
4,063
+1,904
| +88% | +$75.4K |
|
|
RDS.A
260
CALL
DELISTED
Royal Dutch Shell PLC ADS Class A
RDS.A
| $24.3M | 0.04% |
7,578
+2,522
| +50% | +$86.5K |
|
261
Citigroup
C
$222B
| $24.3M | 0.04% |
476,323
+475,823
| +95,165% | +$22.6M |
|
262
PUT
Lockheed Martin
LMT
$119B
| $24.3M | 0.04% |
667
+277
| +71% | +$105K |
|
263
PUT
Novavax
NVAX
$1.3B
| $24.1M | 0.04% |
2,895
+2,016
| +229% | +$77.1K |
|
264
PUT
Oracle
ORCL
$362B
| $24.1M | 0.04% |
4,352
-2,019
| -32% | -$107K |
|
265
PUT
Regeneron Pharmaceuticals
REGN
$68.3B
| $24M | 0.04% |
385
-95
| -20% | -$53.9K |
|
266
PUT
Charter Communications
CHTR
$15.9B
| $24M | 0.04% |
470
-462
| -50% | -$234K |
|
267
PUT
General Motors
GM
$74.1B
| $23.7M | 0.04% |
9,377
-2,971
| -24% | -$72.3K |
|
268
JPMorgan Chase
JPM
$926B
| $23.7M | 0.04% |
251,803
+24,343
| +11% | +$2.31M |
|
269
PUT
Capital One
COF
$124B
| $23.7M | 0.04% |
3,782
+1,510
| +66% | +$94.1K |
|
270
CALL
Sea Limited
SE
$64.2B
| $23.5M | 0.04% |
2,196
+1,238
| +129% | +$89.6K |
|
|
WORK
271
CALL
DELISTED
Slack Technologies, Inc.
WORK
| $23.5M | 0.04% |
7,572
+2,422
| +47% | +$72.8K |
|
272
PUT
Medtronic
MDT
$105B
| $23.4M | 0.04% |
2,549
-75
| -3% | -$7.19K |
|
273
CALL
American Airlines Group
AAL
$9.78B
| $23.4M | 0.04% |
17,869
-158
| -0.9% | -$1.92K |
|
274
CALL
Cigna
CI
$75.4B
| $23.2M | 0.04% |
1,238
+523
| +73% | +$99.2K |
|
|
COUP
275
PUT
DELISTED
Coupa Software Incorporated
COUP
| $23.2M | 0.04% |
838
+437
| +109% | +$88K |
|
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.