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 | |
|---|---|---|---|---|---|---|
|
PVG
2301
PUT
DELISTED
PRETIUM RESOURCES INC.
PVG
| $844K | ﹤0.01% |
1,005
-2,433
| -71% | -$19.8K |
|
2302
CALL
Anterix
ATEX
$1.83B
| $843K | ﹤0.01% |
186
+144
| +343% | +$7.36K |
|
2303
CALL
Delek Logistics
DKL
$3.04B
| $843K | ﹤0.01% |
368
+322
| +700% | +$6.31K |
|
2304
Healthpeak Properties
DOC
$15.4B
| $843K | ﹤0.01% |
+30,597
| New | +$781K |
|
2305
CALL
Lakeland Industries
LAKE
$106M
| $843K | ﹤0.01% |
376
+316
| +527% | +$5.17K |
|
2306
CALL
Guidewire Software
GWRE
$11.5B
| $842K | ﹤0.01% |
76
-67
| -47% | -$6.44K |
|
2307
PUT
Veeco
VECO
$3.15B
| $841K | ﹤0.01% |
624
+611
| +4,700% | +$7.02K |
|
2308
CALL
AZZ Inc
AZZ
$4.5B
| $840K | ﹤0.01% |
245
+241
| +6,025% | +$7.37K |
|
2309
CALL
Goodyear
GT
$2.07B
| $840K | ﹤0.01% |
940
+68
| +8% | +$517 |
|
|
BEAT
2310
PUT
DELISTED
BioTelemetry, Inc.
BEAT
| $840K | ﹤0.01% |
186
+166
| +830% | +$7.44K |
|
2311
CALL
LendingTree
TREE
$544M
| $839K | ﹤0.01% |
29
-15
| -34% | -$3.62K |
|
2312
CALL
Digital Turbine
APPS
$1.02B
| $837K | ﹤0.01% |
666
+316
| +90% | +$2.21K |
|
|
VSTO
2313
CALL
DELISTED
Vista Outdoor Inc.
VSTO
| $836K | ﹤0.01% |
579
+342
| +144% | +$3.43K |
|
2314
PUT
Coherent
COHR
$55.2B
| $835K | ﹤0.01% |
177
+96
| +119% | +$3.81K |
|
2315
ProShares Ultra Silver
AGQ
$1.16B
| $833K | ﹤0.01% |
28,421
+19,444
| +217% | +$477K |
|
|
POLY
2316
CALL
DELISTED
Plantronics, Inc.
POLY
| $833K | ﹤0.01% |
568
+227
| +67% | +$2.96K |
|
2317
Equinix
EQIX
$107B
| $830K | ﹤0.01% |
1,182
-3,594
| -75% | -$2.43M |
|
|
AZPN
2318
DELISTED
ASPEN TECHNOLOGY INC
AZPN
| $829K | ﹤0.01% |
8,005
+2,259
| +39% | +$234K |
|
2319
iShares MSCI Hong Kong ETF
EWH
$1.22B
| $828K | ﹤0.01% |
38,753
-30,276
| -44% | -$639K |
|
|
PING
2320
CALL
DELISTED
Ping Identity Holding Corp.
PING
| $827K | ﹤0.01% |
258
+218
| +545% | +$5.78K |
|
2321
CALL
Atmos Energy
ATO
$29.9B
| $826K | ﹤0.01% |
83
+63
| +315% | +$6.35K |
|
2322
Liberty Global Class A
LBTYA
$3.31B
| $826K | ﹤0.01% |
37,809
-20,240
| -35% | -$418K |
|
2323
Rio Tinto
RIO
$148B
| $826K | ﹤0.01% |
14,707
+6,099
| +71% | +$309K |
|
2324
PUT
Levi Strauss
LEVI
$9.44B
| $825K | ﹤0.01% |
616
+361
| +142% | +$4.74K |
|
|
PFPT
2325
DELISTED
Proofpoint, Inc.
PFPT
| $823K | ﹤0.01% |
+7,412
| New | +$847K |
|
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.