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 | |
|---|---|---|---|---|---|---|
1051
UBS Group
UBS
$169B
| $196K | 0.01% |
+14,458
| New | +$197K |
|
1052
PUT
Oracle
ORCL
$346B
| $195K | 0.01% |
1,174
-20
| -2% | -$815 |
|
|
BEAV
1053
DELISTED
B/E Aerospace Inc
BEAV
| $195K | 0.01% |
3,781
-1,871
| -33% | -$90.5K |
|
|
APOL
1054
PUT
DELISTED
Apollo Education Group Inc Class A
APOL
| $195K | 0.01% |
1,171
+170
| +17% | +$1.48K |
|
1055
H&R Block
HRB
$5.06B
| $194K | 0.01% |
8,407
-9,530
| -53% | -$223K |
|
|
LTC
1056
LTC Properties
LTC
$2.14B
| $194K | 0.01% |
+3,750
| New | +$196K |
|
|
GAU
1057
Galiano Gold
GAU
$481M
| $193K | 0.01% |
46,040
+19,692
| +75% | +$83K |
|
1058
PUT
Mastercard
MA
$469B
| $192K | 0.01% |
1,505
-460
| -23% | -$44.1K |
|
1059
abrdn Physical Silver Shares ETF
SIVR
$4B
| $192K | 0.01% |
10,282
+8,852
| +619% | +$170K |
|
1060
PUT
Credit Acceptance
CACC
$6.2B
| $191K | 0.01% |
89
+47
| +112% | +$9.19K |
|
1061
Cintas
CTAS
$81.3B
| $191K | 0.01% |
+6,788
| New | +$186K |
|
1062
Energy Recovery
ERII
$433M
| $191K | 0.01% |
+11,999
| New | +$146K |
|
1063
KKR & Co
KKR
$86.2B
| $191K | 0.01% |
13,431
+11,855
| +752% | +$168K |
|
|
HAPN
1064
PUT
Happen Inc
HAPN
$2.07B
| $191K | 0.01% |
534
+83
| +18% | +$2.15K |
|
1065
Banco Santander
SAN
$189B
| $191K | 0.01% |
45,294
-57,571
| -56% | -$235K |
|
|
SQBG
1066
DELISTED
Sequential Brands Group, Inc.
SQBG
| $191K | 0.01% |
600
+168
| +39% | +$51.2K |
|
|
PTLA
1067
PUT
DELISTED
Portola Pharmaceuticals, Inc.
PTLA
| $191K | 0.01% |
+306
| New | +$7.18K |
|
|
BZUN
1068
Baozun
BZUN
$143M
| $190K | 0.01% |
12,618
+11,559
| +1,092% | +$121K |
|
1069
PUT
G-III Apparel Group
GIII
$1.45B
| $190K | 0.01% |
239
+220
| +1,158% | +$8.63K |
|
1070
Oneok
OKE
$58.7B
| $190K | 0.01% |
+3,712
| New | +$176K |
|
1071
CALL
Ulta Beauty
ULTA
$20.5B
| $190K | 0.01% |
222
+97
| +78% | +$24.5K |
|
|
BLOX
1072
CALL
DELISTED
Infoblox Inc
BLOX
| $190K | 0.01% |
296
+229
| +342% | +$4.82K |
|
1073
CALL
Axos Financial
AX
$5.42B
| $189K | 0.01% |
264
-108
| -29% | -$2.1K |
|
1074
Dycom Industries
DY
$13.2B
| $189K | 0.01% |
+2,323
| New | +$205K |
|
1075
CALL
Middleby
MIDD
$5.93B
| $188K | 0.01% |
175
+155
| +775% | +$19K |
|
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.