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 | |
|---|---|---|---|---|---|---|
|
ESRX
376
PUT
DELISTED
Express Scripts Holding Company
ESRX
| $693K | 0.05% |
1,623
+114
| +8% | +$8.53K |
|
|
LORL
377
DELISTED
Loral Space and Communications, Inc.
LORL
| $690K | 0.05% |
17,647
+16,998
| +2,619% | +$615K |
|
378
Kimberly-Clark
KMB
$36.1B
| $689K | 0.05% |
+5,467
| New | +$707K |
|
379
PUT
Devon Energy
DVN
$51.8B
| $688K | 0.05% |
2,728
-749
| -22% | -$30.4K |
|
380
Sabre
SABR
$656M
| $682K | 0.05% |
24,210
+23,614
| +3,962% | +$659K |
|
381
CALL
Johnson & Johnson
JNJ
$615B
| $681K | 0.05% |
3,674
+903
| +33% | +$110K |
|
382
ProShares UltraShort Bloomberg Crude Oil
SCO
$603M
| $681K | 0.05% |
211
+150
| +246% | +$563K |
|
|
OAK
383
DELISTED
OAKTREE CAPITAL GROUP, LLC
OAK
| $680K | 0.05% |
16,049
+13,082
| +441% | +$586K |
|
384
CALL
AT&T
T
$160B
| $679K | 0.05% |
3,572
-4,722
| -57% | -$149K |
|
385
PUT
ExxonMobil
XOM
$640B
| $678K | 0.05% |
4,349
-729
| -14% | -$64.7K |
|
|
BREW
386
DELISTED
Craft Brew Alliance, Inc.
BREW
| $673K | 0.05% |
35,761
+6,853
| +24% | +$107K |
|
387
Vanda Pharmaceuticals
VNDA
$322M
| $672K | 0.05% |
40,395
+33,242
| +465% | +$448K |
|
388
Polaris
PII
$4.22B
| $667K | 0.05% |
8,617
+1,394
| +19% | +$121K |
|
|
APOL
389
DELISTED
Apollo Education Group Inc Class A
APOL
| $667K | 0.05% |
83,986
+10,828
| +15% | +$94.2K |
|
390
Ashland
ASH
$3.13B
| $663K | 0.04% |
11,694
+9,489
| +430% | +$545K |
|
391
CALL
Ambarella
AMBA
$3.03B
| $661K | 0.04% |
737
+135
| +22% | +$8.46K |
|
|
392
PUT
Johnson & Johnson
JNJ
$615B
| $661K | 0.04% |
4,817
-288
| -6% | -$34.9K |
|
393
PUT
Invesco CurrencyShares British Pound Sterling Trust
FXB
$77.2M
| $660K | 0.04% |
759
-716
| -49% | -$91.8K |
|
394
Lumen
LUMN
$6.9B
| $660K | 0.04% |
+24,065
| New | +$702K |
|
|
MMP
395
DELISTED
Magellan Midstream Partners, L.P.
MMP
| $655K | 0.04% |
+9,272
| New | +$661K |
|
396
Trimble
TRMB
$11.7B
| $654K | 0.04% |
+22,910
| New | +$612K |
|
|
GAP
397
The Gap Inc
GAP
$7.07B
| $653K | 0.04% |
29,399
+5,888
| +25% | +$142K |
|
398
CALL
Newmont
NEM
$102B
| $651K | 0.04% |
2,494
+334
| +15% | +$13.8K |
|
399
CALL
General Dynamics
GD
$101B
| $650K | 0.04% |
522
+167
| +47% | +$24.9K |
|
|
SDRL
400
PUT
DELISTED
Seadrill Limited Common Stock
SDRL
| $648K | 0.04% |
6
+2
| +50% | +$1.44K |
|
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.