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 | |
|---|---|---|---|---|---|---|
|
QVCGA
451
DELISTED
QVC Group Inc Series A
QVCGA
| $577K | 0.04% |
+594
| New | +$655K |
|
|
WR
452
DELISTED
Westar Energy Inc
WR
| $576K | 0.04% |
10,162
-17,177
| -63% | -$950K |
|
|
GRMN
453
Garmin
GRMN
$46.4B
| $575K | 0.04% |
+11,970
| New | +$591K |
|
454
Ralph Lauren
RL
$23B
| $575K | 0.04% |
+5,688
| New | +$571K |
|
455
CALL
eBay
EBAY
$49.3B
| $574K | 0.04% |
1,080
+196
| +22% | +$5.92K |
|
|
APC
456
CALL
DELISTED
Anadarko Petroleum
APC
| $573K | 0.04% |
1,755
-324
| -16% | -$18.1K |
|
457
United Natural Foods
UNFI
$3.03B
| $570K | 0.04% |
14,247
-25,682
| -64% | -$1.18M |
|
458
JD.com
JD
$40.7B
| $563K | 0.04% |
21,606
-93,002
| -81% | -$2.24M |
|
459
LyondellBasell Industries
LYB
$20.1B
| $561K | 0.04% |
+6,964
| New | +$538K |
|
|
YHOO
460
PUT
DELISTED
Yahoo Inc
YHOO
| $554K | 0.04% |
6,276
+2,433
| +63% | +$99.8K |
|
461
CALL
Accenture
ACN
$85.7B
| $552K | 0.04% |
582
+13
| +2% | +$1.48K |
|
462
CALL
Cisco
CSCO
$442B
| $552K | 0.04% |
1,644
-4,393
| -73% | -$135K |
|
|
HIBB
463
DELISTED
Hibbett, Inc. Common Stock
HIBB
| $552K | 0.04% |
13,855
+11,999
| +646% | +$451K |
|
464
CALL
Devon Energy
DVN
$51.8B
| $551K | 0.04% |
1,747
+567
| +48% | +$23K |
|
|
LNKD
465
PUT
DELISTED
LinkedIn Corporation
LNKD
| $551K | 0.04% |
2,651
-4,141
| -61% | -$794K |
|
466
PUT
Perrigo
PRGO
$1.45B
| $548K | 0.04% |
351
+85
| +32% | +$7.83K |
|
|
467
PUT
JD.com
JD
$40.7B
| $541K | 0.04% |
2,983
-658
| -18% | -$15.9K |
|
|
ESV
468
PUT
DELISTED
Ensco Rowan plc
ESV
| $539K | 0.04% |
300
-226
| -43% | -$7.69K |
|
|
ALXN
469
PUT
DELISTED
Alexion Pharmaceuticals
ALXN
| $538K | 0.04% |
763
+118
| +18% | +$15.2K |
|
470
ProShares UltraPro QQQ
TQQQ
$34.1B
| $537K | 0.04% |
200,688
+199,584
| +18,078% | +$493K |
|
471
CALL
Walmart Inc
WMT
$870B
| $537K | 0.04% |
12,750
-8,085
| -39% | -$196K |
|
|
ESV
472
DELISTED
Ensco Rowan plc
ESV
| $533K | 0.04% |
15,685
-773
| -5% | -$26.3K |
|
473
CALL
Johnson Controls International
JCI
$86.9B
| $531K | 0.04% |
989
+451
| +84% | +$20.9K |
|
474
PUT
Target
TGT
$62.6B
| $531K | 0.04% |
4,603
+2,004
| +77% | +$144K |
|
475
CALL
Lam Research
LRCX
$399B
| $528K | 0.04% |
3,480
+500
| +17% | +$4.55K |
|
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.