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 |
Gilead Sciences
GILD
|
+$17.3M |
| 2 |
Apple
AAPL
|
+$15.2M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$14.9M |
| 4 |
Booking.com
BKNG
|
+$14.7M |
| 5 |
Wells Fargo
WFC
|
+$12.9M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
SPDR Gold Trust
GLD
|
+$38.3M |
| 2 |
QIHU
QIHOO 360 TECHNOLOGY CO LTD ADS RPSTG 3 CL A SHS
QIHU
|
+$30.7M |
| 3 |
LNKD
LinkedIn Corporation
LNKD
|
+$15.2M |
| 4 |
CELG
Celgene Corp
CELG
|
+$12.6M |
| 5 |
ProShares Trust UltraShort Lehman 20+ Year Treasury
TBT
|
+$10.4M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Communication Services | 8.39% |
| 2 | Healthcare | 8.28% |
| 3 | Consumer Discretionary | 6.84% |
| 4 | Technology | 6.06% |
| 5 | Financials | 4.39% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
276
LCI Industries
LCII
$2.58B
| $948K | 0.06% |
9,675
+9,304
| +2,508% | +$884K |
|
277
CALL
Trip.com Group
TCOM
$27B
| $942K | 0.06% |
2,309
+265
| +13% | +$11.8K |
|
278
PUT
Chevron
CVX
$384B
| $937K | 0.06% |
2,617
-3,076
| -54% | -$314K |
|
279
CALL
Williams Companies
WMB
$91.5B
| $933K | 0.06% |
4,118
+2,113
| +105% | +$56.1K |
|
280
CALL
Kraft Heinz
KHC
$30.9B
| $925K | 0.06% |
1,463
-21
| -1% | -$1.86K |
|
281
PUT
Skyworks Solutions
SWKS
$9.44B
| $925K | 0.06% |
1,700
+930
| +121% | +$64.8K |
|
282
ProShares Ultra Russell2000
UWM
$261M
| $925K | 0.06% |
39,044
-14,144
| -27% | -$321K |
|
283
CALL
Union Pacific
UNP
$174B
| $919K | 0.06% |
2,792
+826
| +42% | +$77.3K |
|
284
CALL
NetEase
NTES
$77.4B
| $918K | 0.06% |
1,400
-165
| -11% | -$7.02K |
|
|
WNR
285
DELISTED
Western Refining Inc
WNR
| $918K | 0.06% |
34,727
+7,800
| +29% | +$184K |
|
286
Diamondback Energy
FANG
$57.2B
| $917K | 0.06% |
+9,507
| New | +$876K |
|
|
IMPV
287
DELISTED
Imperva, Inc.
IMPV
| $914K | 0.06% |
17,018
-5,762
| -25% | -$267K |
|
288
Southwest Airlines
LUV
$23.5B
| $913K | 0.06% |
23,496
-10,040
| -30% | -$382K |
|
289
Invesco CurrencyShares Euro Currency Trust
FXE
$332M
| $912K | 0.06% |
+8,344
| New | +$907K |
|
290
United Parks & Resorts
PRKS
$2.16B
| $901K | 0.06% |
66,891
+22,440
| +50% | +$307K |
|
|
CLVS
291
DELISTED
Clovis Oncology, Inc.
CLVS
| $897K | 0.06% |
+24,883
| New | +$534K |
|
|
FNSR
292
DELISTED
Finisar Corp
FNSR
| $893K | 0.06% |
+29,983
| New | +$656K |
|
293
CarMax
KMX
$8.17B
| $891K | 0.06% |
+16,713
| New | +$947K |
|
294
iShares JPMorgan USD Emerging Markets Bond ETF
EMB
$15B
| $889K | 0.06% |
7,590
+3,014
| +66% | +$351K |
|
295
Direxion Daily Small Cap Bull 3x ETF
TNA
$1.39B
| $886K | 0.06% |
+22,210
| New | +$834K |
|
296
CALL
Capri Holdings
CPRI
$1.84B
| $883K | 0.06% |
706
-212
| -23% | -$10.6K |
|
297
PUT
iShares MSCI Australia ETF
EWA
$1.35B
| $879K | 0.06% |
15,024
+4,955
| +49% | +$101K |
|
|
MOMO
298
CALL
Hello Group
MOMO
$879M
| $878K | 0.06% |
1,065
-58
| -5% | -$1.03K |
|
299
PUT
Direxion Daily Technology Bull 3x ETF
TECL
$5.63B
| $878K | 0.06% |
32,060
-19,100
| -37% | -$85.3K |
|
300
Royal Caribbean
RCL
$76.8B
| $877K | 0.06% |
+11,709
| New | +$825K |
|
Similar funds
Simplex Trading's Q3 2016 Portfolio in Review
As of Q3 2016, Simplex Trading held 7,235 positions worth $1.48B, down 1.4% from $1.5B the previous quarter. Its ten largest holdings account for 18% of the portfolio.
Simplex Trading withdrew a net $87.1M in Q3 2016, closing 1,479 positions and reducing 1,939 holdings. Its most notable exit was SPDR Gold Trust, an estimated $38.3M position sold in full.
By sector, the portfolio is most concentrated in Communication Services at 8.4% of assets, up from 6.6% a quarter earlier, followed by Healthcare and Consumer Discretionary.
Against the trend, Simplex Trading opened a new position in Booking.com worth $15.6M.
- Simplex Trading's largest Q3 2016 buy was Booking.com: 264,225 shares worth $15.6M.
- Simplex Trading added most to Gilead Sciences in Q3 2016, an estimated $17.3M increase.
- Simplex Trading's biggest Q3 2016 reduction was LinkedIn Corporation, cutting an estimated $15.2M.
- Simplex Trading fully exited SPDR Gold Trust in Q3 2016, selling an estimated $38.3M.
- Simplex Trading's ten largest holdings make up 18% of its $1.48B portfolio in Q3 2016.
- Simplex Trading opened 1,460 new positions and closed 1,479 in Q3 2016.
- Simplex Trading's portfolio value fell 1.4% quarter-over-quarter to $1.48B.
Based on Simplex Trading's 13F filing for Q3 2016, filed 7 Oct 2016.