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 | |
|---|---|---|---|---|---|---|
|
JOYY
801
PUT
JOYY Inc
JOYY
$3.66B
| $5.45M | 0.01% |
615
+230
| +60% | +$15.3K |
|
802
CALL
T. Rowe Price
TROW
$24.6B
| $5.42M | 0.01% |
439
-103
| -19% | -$11.7K |
|
803
CALL
Live Nation Entertainment
LYV
$41B
| $5.42M | 0.01% |
1,222
-145
| -11% | -$6.36K |
|
|
JNPR
804
CALL
DELISTED
Juniper Networks
JNPR
| $5.42M | 0.01% |
2,369
+2,122
| +859% | +$48.8K |
|
805
Trip.com Group
TCOM
$27.1B
| $5.41M | 0.01% |
208,834
+154,207
| +282% | +$3.89M |
|
806
Wells Fargo
WFC
$261B
| $5.41M | 0.01% |
211,369
+203,337
| +2,532% | +$5.56M |
|
807
CALL
Genuine Parts
GPC
$16.6B
| $5.41M | 0.01% |
622
+95
| +18% | +$7.5K |
|
808
PUT
Equinix
EQIX
$102B
| $5.41M | 0.01% |
77
-181
| -70% | -$122K |
|
809
Direxion Daily Gold Miners Index Bull 2X ETF
NUGT
$860M
| $5.4M | 0.01% |
69,129
-91,318
| -57% | -$5.93M |
|
810
Pinterest
PINS
$12.3B
| $5.38M | 0.01% |
242,553
-42,514
| -15% | -$830K |
|
811
CALL
ProShares Ultra S&P500
SSO
$7.82B
| $5.37M | 0.01% |
10,920
-13,992
| -56% | -$198K |
|
812
PUT
Baxter International
BAX
$11.2B
| $5.36M | 0.01% |
622
+114
| +22% | +$9.93K |
|
813
CALL
CarMax
KMX
$8.29B
| $5.36M | 0.01% |
598
+231
| +63% | +$18.1K |
|
814
CALL
Prudential Financial
PRU
$40.9B
| $5.35M | 0.01% |
879
-354
| -29% | -$20.8K |
|
|
MMP
815
CALL
DELISTED
Magellan Midstream Partners, L.P.
MMP
| $5.33M | 0.01% |
1,235
+1,138
| +1,173% | +$48.1K |
|
816
Cloudflare
NET
$93.1B
| $5.33M | 0.01% |
148,213
+90,114
| +155% | +$2.52M |
|
|
K
817
PUT
DELISTED
Kellanova
K
| $5.32M | 0.01% |
858
+55
| +7% | +$3.33K |
|
|
PXD
818
PUT
DELISTED
Pioneer Natural Resource Co.
PXD
| $5.31M | 0.01% |
544
-154
| -22% | -$13.6K |
|
819
CALL
iQIYI
IQ
$1.17B
| $5.31M | 0.01% |
2,290
+746
| +48% | +$13.8K |
|
820
Palo Alto Networks
PANW
$265B
| $5.3M | 0.01% |
138,600
-219,636
| -61% | -$7.74M |
|
821
PUT
Synopsys
SNPS
$71.5B
| $5.3M | 0.01% |
272
-142
| -34% | -$23.4K |
|
822
CALL
TD Synnex
SNX
$19.8B
| $5.28M | 0.01% |
882
+764
| +647% | +$35.7K |
|
823
PUT
Ball Corp
BALL
$16.6B
| $5.27M | 0.01% |
759
+626
| +471% | +$42.3K |
|
824
CALL
ON Semiconductor
ON
$35.1B
| $5.27M | 0.01% |
2,657
+431
| +19% | +$7.02K |
|
|
CLR
825
PUT
DELISTED
CONTINENTAL RESOURCES INC.
CLR
| $5.27M | 0.01% |
3,004
+1,990
| +196% | +$27.9K |
|
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.