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 | |
|---|---|---|---|---|---|---|
2351
PUT
Griffon
GFF
$4.16B
| $38K | ﹤0.01% |
30
-1
| -3% | -$17 |
|
2352
Gold Fields
GFI
$29.2B
| $38K | ﹤0.01% |
7,865
-29,133
| -79% | -$165K |
|
2353
CALL
ITT
ITT
$17.5B
| $38K | ﹤0.01% |
+193
| New | +$6.59K |
|
2354
CALL
NovoCure
NVCR
$2.04B
| $38K | ﹤0.01% |
443
+293
| +195% | +$2.67K |
|
2355
CALL
Papa John's
PZZA
$999M
| $38K | ﹤0.01% |
99
+58
| +141% | +$4.33K |
|
|
SAND
2356
PUT
DELISTED
Sandstorm Gold
SAND
| $38K | ﹤0.01% |
278
-160
| -37% | -$897 |
|
2357
Sunoco
SUN
$14.2B
| $38K | ﹤0.01% |
1,323
-14,447
| -92% | -$434K |
|
2358
PUT
Teleflex
TFX
$5.85B
| $38K | ﹤0.01% |
55
-38
| -41% | -$6.81K |
|
|
AFH
2359
DELISTED
Atlas Financial Holdings, Inc. Ordinary Shares
AFH
| $38K | ﹤0.01% |
2,459
+2,387
| +3,315% | +$40.3K |
|
|
ANDV
2360
CALL
DELISTED
Andeavor
ANDV
| $38K | ﹤0.01% |
246
-137
| -36% | -$10.6K |
|
|
TUBE
2361
PUT
DELISTED
TubeMogul, Inc.
TUBE
| $38K | ﹤0.01% |
131
+106
| +424% | +$1.07K |
|
|
CRC
2362
PUT
DELISTED
California Resources Corporation
CRC
| $38K | ﹤0.01% |
360
+336
| +1,400% | +$3.83K |
|
2363
CALL
Alaska Air
ALK
$5.15B
| $37K | ﹤0.01% |
141
+42
| +42% | +$2.76K |
|
2364
PUT
Apollo Global Management
APO
$70.7B
| $37K | ﹤0.01% |
533
+131
| +33% | +$2.3K |
|
2365
CALL
BorgWarner
BWA
$13.2B
| $37K | ﹤0.01% |
201
+98
| +95% | +$2.89K |
|
2366
PUT
Chord Energy
CHRD
$7.79B
| $37K | ﹤0.01% |
220
+41
| +23% | +$375 |
|
2367
CALL
Ford
F
$57.3B
| $37K | ﹤0.01% |
886
-260
| -23% | -$3.28K |
|
2368
Fortress Biotech
FBIO
$111M
| $37K | ﹤0.01% |
844
+812
| +2,538% | +$34.5K |
|
2369
CALL
H&R Block
HRB
$5.18B
| $37K | ﹤0.01% |
173
+114
| +193% | +$2.67K |
|
2370
CALL
Lumen
LUMN
$6.53B
| $37K | ﹤0.01% |
1,728
+659
| +62% | +$19.2K |
|
2371
CALL
Motorola Solutions
MSI
$69.4B
| $37K | ﹤0.01% |
102
-122
| -54% | -$8.91K |
|
2372
PUT
Novartis
NVS
$295B
| $37K | ﹤0.01% |
179
-145
| -45% | -$10.6K |
|
2373
CALL
Paylocity
PCTY
$6.71B
| $37K | ﹤0.01% |
96
-1
| -1% | -$44 |
|
2374
CALL
Public Storage
PSA
$60.2B
| $37K | ﹤0.01% |
102
+48
| +89% | +$11.2K |
|
2375
CALL
United Therapeutics
UTHR
$26.3B
| $37K | ﹤0.01% |
161
-28
| -15% | -$3.36K |
|
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.