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 | |
|---|---|---|---|---|---|---|
|
HDS
626
DELISTED
HD Supply Holdings, Inc.
HDS
| $394K | 0.03% |
12,337
+6,146
| +99% | +$213K |
|
|
TSL
627
DELISTED
Trina Solar Limited
TSL
| $394K | 0.03% |
38,518
+4,018
| +12% | +$39.4K |
|
628
PUT
American Express
AXP
$238B
| $393K | 0.03% |
1,435
-82
| -5% | -$5.27K |
|
629
Coherent
COHR
$61.1B
| $392K | 0.03% |
+16,129
| New | +$341K |
|
630
CALL
Humana
HUM
$47.7B
| $392K | 0.03% |
446
-34
| -7% | -$5.9K |
|
|
PVG
631
DELISTED
PRETIUM RESOURCES INC.
PVG
| $392K | 0.03% |
38,265
+3,473
| +10% | +$38.7K |
|
|
CXRX
632
PUT
DELISTED
Concordia International Corp. Common Stock
CXRX
| $392K | 0.03% |
811
-46
| -5% | -$577 |
|
633
Direxion Daily 20+ Year Treasury Bull 3X ETF
TMF
$2.24B
| $391K | 0.03% |
1,414
-440
| -24% | -$125K |
|
634
CALL
BHP
BHP
$215B
| $390K | 0.03% |
1,569
+539
| +52% | +$14.8K |
|
635
PUT
Kinder Morgan
KMI
$72.3B
| $390K | 0.03% |
3,244
-1,700
| -34% | -$36K |
|
|
MRO
636
PUT
DELISTED
Marathon Oil Corporation
MRO
| $390K | 0.03% |
1,797
-2,301
| -56% | -$34.2K |
|
637
CALL
AB InBev
BUD
$161B
| $389K | 0.03% |
1,192
+787
| +194% | +$99.5K |
|
638
Ford
F
$57.5B
| $388K | 0.03% |
32,215
-12,288
| -28% | -$155K |
|
639
CALL
UnitedHealth
UNH
$392B
| $388K | 0.03% |
1,695
+449
| +36% | +$62.9K |
|
640
Cameco
CCJ
$39.4B
| $387K | 0.03% |
45,273
+30,217
| +201% | +$291K |
|
641
Exelixis
EXEL
$13.8B
| $386K | 0.03% |
+30,210
| New | +$327K |
|
|
JOYY
642
JOYY Inc
JOYY
$3.65B
| $384K | 0.03% |
7,212
-2,115
| -23% | -$96.6K |
|
643
PUT
Pan American Silver
PAAS
$19.1B
| $383K | 0.03% |
1,367
+627
| +85% | +$11.7K |
|
|
MNDT
644
DELISTED
Mandiant, Inc. Common Stock
MNDT
| $383K | 0.03% |
26,017
-71,625
| -73% | -$1.1M |
|
|
POT
645
CALL
DELISTED
Potash Corp Of Saskatchewan
POT
| $382K | 0.03% |
1,666
-2,420
| -59% | -$40K |
|
646
Acadia Healthcare
ACHC
$3.2B
| $381K | 0.03% |
7,691
-7,307
| -49% | -$381K |
|
647
PUT
WisdomTree US Total Dividend Fund
DTD
$1.65B
| $381K | 0.03% |
5,010
-2,680
| -35% | -$105K |
|
648
Travelers Companies
TRV
$82.1B
| $381K | 0.03% |
3,327
+2,147
| +182% | +$251K |
|
|
ZEN
649
DELISTED
ZENDESK INC
ZEN
| $380K | 0.03% |
12,391
+1,606
| +15% | +$47.7K |
|
650
PUT
Deutsche Bank
DB
$68.1B
| $378K | 0.03% |
4,038
+1,846
| +84% | +$22.6K |
|
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.