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 | |
|---|---|---|---|---|---|---|
2276
DXC Technology
DXC
$1.63B
| $869K | ﹤0.01% |
52,673
+52,432
| +21,756% | +$834K |
|
2277
iShares US Transportation ETF
IYT
$2.33B
| $868K | ﹤0.01% |
21,364
-45,168
| -68% | -$1.71M |
|
|
WRK
2278
PUT
DELISTED
WestRock Company
WRK
| $867K | ﹤0.01% |
307
-51
| -14% | -$1.45K |
|
2279
Globus Medical
GMED
$10.4B
| $866K | ﹤0.01% |
18,152
-5,567
| -23% | -$269K |
|
2280
PUT
Archer Daniels Midland
ADM
$41.4B
| $865K | ﹤0.01% |
217
-377
| -63% | -$14.1K |
|
2281
PUT
Boyd Gaming
BYD
$6.47B
| $865K | ﹤0.01% |
414
+264
| +176% | +$4.82K |
|
2282
PUT
Yum China
YUMC
$14.9B
| $865K | ﹤0.01% |
180
+63
| +54% | +$2.97K |
|
2283
PUT
Children's Place
PLCE
$53.6M
| $864K | ﹤0.01% |
231
+102
| +79% | +$3.47K |
|
2284
CALL
VICI Properties
VICI
$29.4B
| $864K | ﹤0.01% |
428
+360
| +529% | +$6.59K |
|
|
XEC
2285
PUT
DELISTED
CIMAREX ENERGY CO
XEC
| $863K | ﹤0.01% |
314
-398
| -56% | -$9.87K |
|
2286
PUT
Brinker International
EAT
$8.02B
| $861K | ﹤0.01% |
359
+15
| +4% | +$322 |
|
2287
PUT
Inseego
INSG
$108M
| $861K | ﹤0.01% |
74
-63
| -46% | -$6.66K |
|
2288
PUT
Matador Resources
MTDR
$6.31B
| $861K | ﹤0.01% |
1,014
+915
| +924% | +$6.39K |
|
2289
CALL
Monster Beverage
MNST
$91.4B
| $859K | ﹤0.01% |
248
+124
| +100% | +$4.05K |
|
2290
CALL
PBF Energy
PBF
$7.29B
| $859K | ﹤0.01% |
839
+195
| +30% | +$1.95K |
|
2291
PUT
Comstock Resources
CRK
$3.97B
| $858K | ﹤0.01% |
1,960
+1,825
| +1,352% | +$10.9K |
|
2292
Global X Silver Miners ETF NEW
SIL
$4.08B
| $857K | ﹤0.01% |
+23,157
| New | +$752K |
|
|
VRNT
2293
PUT
DELISTED
Verint Systems
VRNT
| $853K | ﹤0.01% |
371
-1,254
| -77% | -$27.8K |
|
2294
CALL
Dynatrace
DT
$12.1B
| $852K | ﹤0.01% |
210
-310
| -60% | -$10.2K |
|
2295
CALL
Host Hotels & Resorts
HST
$16.8B
| $852K | ﹤0.01% |
790
-1,005
| -56% | -$11.5K |
|
2296
Stride
LRN
$3.69B
| $852K | ﹤0.01% |
31,279
+817
| +3% | +$19.7K |
|
2297
CALL
Cedar Fair
FUN
$1.78B
| $849K | ﹤0.01% |
309
+237
| +329% | +$6.75K |
|
|
ZNGA
2298
DELISTED
ZYNGA INC. CL A COMMON
ZNGA
| $848K | ﹤0.01% |
+88,902
| New | +$729K |
|
2299
CALL
YPF
YPF
$20.2B
| $847K | ﹤0.01% |
1,474
-516
| -26% | -$2.41K |
|
2300
CALL
Columbia Sportswear
COLM
$3.19B
| $846K | ﹤0.01% |
105
-50
| -32% | -$3.65K |
|
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.