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 | |
|---|---|---|---|---|---|---|
|
CQH
1701
DELISTED
Cheniere Energy Partners LP Holdings LLC
CQH
| $82K | 0.01% |
3,624
+310
| +9% | +$6.31K |
|
1702
Advanced Energy
AEIS
$12.2B
| $81K | 0.01% |
+1,722
| New | +$73.2K |
|
1703
CALL
Best Buy
BBY
$18B
| $81K | 0.01% |
780
+483
| +163% | +$17K |
|
1704
PUT
BGC Group
BGC
$5.58B
| $81K | 0.01% |
1,054
+740
| +236% | +$4.23K |
|
1705
Diana Shipping
DSX
$280M
| $81K | 0.01% |
44,755
+36,589
| +448% | +$67.1K |
|
1706
CALL
Goodyear
GT
$2.07B
| $81K | 0.01% |
274
+43
| +19% | +$1.25K |
|
1707
CALL
iShares Morningstar Value ETF
ILCV
$1.3B
| $81K | 0.01% |
2,628
-878
| -25% | -$38.8K |
|
1708
PUT
International Paper
IP
$22.3B
| $81K | 0.01% |
1,603
+1,402
| +698% | +$61.8K |
|
1709
PUT
MPLX
MPLX
$59.5B
| $81K | 0.01% |
148
-105
| -42% | -$3.46K |
|
1710
PUT
Ocular Therapeutix
OCUL
$1.86B
| $81K | 0.01% |
161
-29
| -15% | -$177 |
|
1711
PUT
Prudential Financial
PRU
$41.7B
| $81K | 0.01% |
618
-268
| -30% | -$20.6K |
|
|
SA
1712
PUT
Seabridge Gold
SA
$2.8B
| $81K | 0.01% |
488
+65
| +15% | +$813 |
|
1713
PUT
iShares Silver Trust
SLV
$28.1B
| $81K | 0.01% |
1,800
+36
| +2% | +$670 |
|
|
SGI
1714
CALL
Somnigroup International
SGI
$15.1B
| $81K | 0.01% |
2,448
+2,064
| +538% | +$36.8K |
|
|
HNP
1715
PUT
DELISTED
Huaneng Power Intl, Inc.
HNP
| $81K | 0.01% |
116
-41
| -26% | -$1.01K |
|
|
SPNC
1716
CALL
DELISTED
Spectranetics Corp
SPNC
| $81K | 0.01% |
191
+174
| +1,024% | +$4.06K |
|
1717
CALL
Aptiv
APTV
$12B
| $80K | 0.01% |
+453
| New | +$30.6K |
|
1718
CALL
Fortinet
FTNT
$112B
| $80K | 0.01% |
1,065
+40
| +4% | +$280 |
|
1719
PUT
KB Home
KBH
$3.48B
| $80K | 0.01% |
1,387
+735
| +113% | +$11.6K |
|
1720
PUT
Southern Company
SO
$110B
| $80K | 0.01% |
1,534
+1,078
| +236% | +$56.8K |
|
1721
CALL
Teradata
TDC
$2.68B
| $80K | 0.01% |
297
+160
| +117% | +$4.76K |
|
1722
CALL
Terex
TEX
$7.98B
| $80K | 0.01% |
531
-126
| -19% | -$2.94K |
|
|
BGG
1723
PUT
DELISTED
Briggs & Stratton Corp.
BGG
| $80K | 0.01% |
+227
| New | +$4.68K |
|
|
ATHN
1724
PUT
DELISTED
Athenahealth, Inc.
ATHN
| $80K | 0.01% |
154
+34
| +28% | +$4.33K |
|
|
RATE
1725
DELISTED
Bankrate Inc
RATE
| $80K | 0.01% |
9,545
+260
| +3% | +$2.07K |
|
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.