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 | |
|---|---|---|---|---|---|---|
|
P
501
Everpure Inc
P
$24.8B
| $501K | 0.03% |
37,033
+36,007
| +3,509% | +$449K |
|
502
PUT
Sarepta Therapeutics
SRPT
$1.67B
| $501K | 0.03% |
3,761
+91
| +2% | +$2.75K |
|
503
CALL
Tyson Foods
TSN
$20.1B
| $501K | 0.03% |
734
-358
| -33% | -$26.3K |
|
504
CALL
Visa
V
$672B
| $501K | 0.03% |
2,172
-1,465
| -40% | -$117K |
|
505
PUT
Caterpillar
CAT
$410B
| $499K | 0.03% |
4,376
+1,218
| +39% | +$99.7K |
|
506
CALL
Twilio
TWLO
$27.8B
| $499K | 0.03% |
+1,076
| New | +$53.7K |
|
|
AKS
507
DELISTED
AK Steel Holding Corp
AKS
| $499K | 0.03% |
103,352
+40,371
| +64% | +$205K |
|
508
PUT
Deere & Co
DE
$164B
| $498K | 0.03% |
2,655
-1,300
| -33% | -$106K |
|
509
PUT
Freeport-McMoran
FCX
$93.4B
| $498K | 0.03% |
6,597
+1,692
| +34% | +$19.5K |
|
510
PUT
3M
MMM
$89.1B
| $498K | 0.03% |
4,681
+1,510
| +48% | +$225K |
|
|
ALR
511
DELISTED
Alere Inc
ALR
| $497K | 0.03% |
11,511
-8,288
| -42% | -$338K |
|
|
JUNO
512
DELISTED
Juno Therapeutics, Inc.
JUNO
| $495K | 0.03% |
16,520
-14,311
| -46% | -$445K |
|
|
MON
513
CALL
DELISTED
Monsanto Co
MON
| $494K | 0.03% |
3,612
+1,537
| +74% | +$161K |
|
514
CALL
United Rentals
URI
$64.8B
| $492K | 0.03% |
556
-10
| -2% | -$766 |
|
515
PUT
Starbucks
SBUX
$119B
| $491K | 0.03% |
2,893
-901
| -24% | -$50.4K |
|
516
PUT
Capri Holdings
CPRI
$1.86B
| $490K | 0.03% |
768
-152
| -17% | -$7.58K |
|
517
PUT
RTX Corp
RTX
$262B
| $490K | 0.03% |
6,194
+1,443
| +30% | +$95.7K |
|
518
Wheaton Precious Metals
WPM
$50.6B
| $488K | 0.03% |
18,062
-22,681
| -56% | -$624K |
|
519
CALL
Coeur Mining
CDE
$16.3B
| $487K | 0.03% |
2,086
+334
| +19% | +$4.57K |
|
520
Stewart Information Services
STC
$2.12B
| $487K | 0.03% |
+10,963
| New | +$492K |
|
|
KATE
521
DELISTED
Kate Spade & Company
KATE
| $485K | 0.03% |
28,353
+11,003
| +63% | +$213K |
|
522
CALL
AutoZone
AZO
$48.5B
| $484K | 0.03% |
829
+615
| +287% | +$479K |
|
|
SPA
523
CALL
DELISTED
Sparton
SPA
| $484K | 0.03% |
476
+435
| +1,061% | +$9.99K |
|
524
PUT
CVS Health
CVS
$138B
| $482K | 0.03% |
1,517
-596
| -28% | -$56.3K |
|
525
CALL
Philip Morris
PM
$303B
| $481K | 0.03% |
1,811
+555
| +44% | +$55.6K |
|
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.