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 | |
|---|---|---|---|---|---|---|
2251
PUT
GoDaddy
GDDY
$12.3B
| $887K | ﹤0.01% |
121
-132
| -52% | -$9.48K |
|
2252
CALL
Burlington
BURL
$22B
| $886K | ﹤0.01% |
45
+4
| +10% | +$753 |
|
2253
CALL
Fortive
FTV
$19B
| $886K | ﹤0.01% |
208
+149
| +253% | +$5.81K |
|
2254
PUT
Adaptive Biotechnologies
ADPT
$3.56B
| $885K | ﹤0.01% |
183
+174
| +1,933% | +$6.34K |
|
2255
PUT
Grocery Outlet
GO
$891M
| $885K | ﹤0.01% |
217
-495
| -70% | -$17.7K |
|
|
NOAH
2256
Noah Holdings
NOAH
$588M
| $885K | ﹤0.01% |
34,774
+34,302
| +7,267% | +$885K |
|
2257
CALL
Dine Brands
DIN
$432M
| $884K | ﹤0.01% |
210
+185
| +740% | +$7.47K |
|
2258
PUT
Globant
GLOB
$1.35B
| $884K | ﹤0.01% |
59
-130
| -69% | -$16.1K |
|
|
WCC
2259
PUT
WESCO International
WCC
$16.2B
| $884K | ﹤0.01% |
262
+46
| +21% | +$1.38K |
|
|
UNVR
2260
CALL
DELISTED
Univar Solutions Inc.
UNVR
| $883K | ﹤0.01% |
524
+498
| +1,915% | +$7.15K |
|
2261
Vanguard FTSE Europe ETF
VGK
$30B
| $881K | ﹤0.01% |
+17,512
| New | +$826K |
|
|
MIC
2262
CALL
DELISTED
Macquarie Infrastructure Holdings, LLC
MIC
| $880K | ﹤0.01% |
287
+62
| +28% | +$1.72K |
|
2263
CALL
Radian Group
RDN
$5.14B
| $879K | ﹤0.01% |
567
+292
| +106% | +$4.32K |
|
2264
PUT
J.M. Smucker
SJM
$12.6B
| $878K | ﹤0.01% |
83
-265
| -76% | -$29.8K |
|
2265
PUT
Ziff Davis
ZD
$1.9B
| $878K | ﹤0.01% |
160
+145
| +967% | +$9.48K |
|
2266
PUT
Century Communities
CCS
$2B
| $876K | ﹤0.01% |
286
+262
| +1,092% | +$6.26K |
|
2267
PUT
Nabors Industries
NBR
$1.23B
| $876K | ﹤0.01% |
237
+231
| +3,850% | +$6.64K |
|
2268
PUT
Mohawk Industries
MHK
$6.9B
| $875K | ﹤0.01% |
86
+60
| +231% | +$5.28K |
|
2269
CALL
Stratasys
SSYS
$697M
| $875K | ﹤0.01% |
552
+413
| +297% | +$6.99K |
|
2270
CALL
American Eagle Outfitters
AEO
$2.85B
| $874K | ﹤0.01% |
802
+421
| +110% | +$3.98K |
|
2271
PUT
Zions Bancorporation
ZION
$10.1B
| $873K | ﹤0.01% |
257
+18
| +8% | +$570 |
|
|
CTLT
2272
PUT
DELISTED
CATALENT, INC.
CTLT
| $872K | ﹤0.01% |
119
+27
| +29% | +$1.83K |
|
2273
CALL
Agios Pharmaceuticals
AGIO
$2.16B
| $871K | ﹤0.01% |
163
-268
| -62% | -$12.4K |
|
2274
CALL
Nektar Therapeutics
NKTR
$2.39B
| $870K | ﹤0.01% |
25
+21
| +525% | +$6.55K |
|
2275
CALL
Xylem
XYL
$28.5B
| $870K | ﹤0.01% |
134
-10
| -7% | -$660 |
|
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.