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 |
LNKD
LinkedIn Corporation
LNKD
|
+$21.4M |
| 2 |
SPDR Gold Trust
GLD
|
+$17.3M |
| 3 |
QIHU
QIHOO 360 TECHNOLOGY CO LTD ADS RPSTG 3 CL A SHS
QIHU
|
+$15M |
| 4 |
Biogen
BIIB
|
+$14.9M |
| 5 |
Visa
V
|
+$14.1M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Broadcom
AVGO
|
+$36.7M |
| 2 |
Alphabet (Google) Class C
GOOG
|
+$20.1M |
| 3 |
iShares MSCI Emerging Markets ETF
EEM
|
+$15.8M |
| 4 |
Citigroup
C
|
+$14.7M |
| 5 |
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
|
+$13.1M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Communication Services | 6.61% |
| 2 | Healthcare | 6.55% |
| 3 | Technology | 6.45% |
| 4 | Consumer Discretionary | 4.54% |
| 5 | Financials | 4.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
ITCI
1351
PUT
DELISTED
Intra-Cellular Therapies Inc.
ITCI
| $120K | 0.01% |
236
+104
| +79% | +$3.74K |
|
|
WFT
1352
DELISTED
Weatherford International plc
WFT
| $120K | 0.01% |
+21,738
| New | +$142K |
|
1353
CALL
Baxter International
BAX
$11.2B
| $119K | 0.01% |
720
+404
| +128% | +$17.7K |
|
1354
PUT
GSK
GSK
$102B
| $119K | 0.01% |
378
-318
| -46% | -$16.8K |
|
1355
Honda
HMC
$36.3B
| $119K | 0.01% |
4,699
+2,375
| +102% | +$63.9K |
|
1356
Liberty Global Class A
LBTYA
$3.48B
| $119K | 0.01% |
4,105
-7,087
| -63% | -$230K |
|
1357
CALL
Zoetis
ZTS
$31.3B
| $119K | 0.01% |
346
-49
| -12% | -$2.31K |
|
|
FMI
1358
DELISTED
Foundation Medicine, Inc.
FMI
| $119K | 0.01% |
6,407
+4,684
| +272% | +$84.7K |
|
1359
CALL
Adobe
ADBE
$84.3B
| $118K | 0.01% |
638
-527
| -45% | -$50.6K |
|
1360
CALL
Invesco CurrencyShares Japanese Yen Trust
FXY
$423M
| $118K | 0.01% |
239
-8
| -3% | -$717 |
|
1361
PUT
Lowe's Companies
LOW
$113B
| $118K | 0.01% |
2,069
+1,664
| +411% | +$129K |
|
1362
Molina Healthcare
MOH
$10.5B
| $118K | 0.01% |
2,368
+1,781
| +303% | +$95.2K |
|
1363
RB Global
RBA
$20.3B
| $118K | 0.01% |
3,511
+3,335
| +1,895% | +$103K |
|
1364
PUT
Verizon
VZ
$183B
| $118K | 0.01% |
2,662
+969
| +57% | +$50.3K |
|
1365
CALL
Welltower
WELL
$174B
| $118K | 0.01% |
839
+593
| +241% | +$42.1K |
|
|
XONE
1366
PUT
DELISTED
The ExOne Company
XONE
| $118K | 0.01% |
104
+20
| +24% | +$226 |
|
1367
Avanos Medical
AVNS
$1.17B
| $117K | 0.01% |
3,613
-6,887
| -66% | -$211K |
|
1368
Performance Food Group
PFGC
$17.3B
| $117K | 0.01% |
+4,376
| New | +$111K |
|
|
ICPT
1369
CALL
DELISTED
Intercept Pharmaceuticals, Inc.
ICPT
| $117K | 0.01% |
229
+101
| +79% | +$14.7K |
|
|
MXIM
1370
CALL
DELISTED
Maxim Integrated Products
MXIM
| $117K | 0.01% |
1,145
-68
| -6% | -$2.49K |
|
|
BHI
1371
PUT
DELISTED
Baker Hughes
BHI
| $117K | 0.01% |
383
-126
| -25% | -$5.71K |
|
1372
Graco
GGG
$12.6B
| $116K | 0.01% |
4,434
-5,814
| -57% | -$156K |
|
1373
iShares US Financials ETF
IYF
$4.35B
| $116K | 0.01% |
2,710
+2,500
| +1,190% | +$108K |
|
|
VNET
1374
PUT
VNET Group
VNET
$2.21B
| $116K | 0.01% |
345
-81
| -19% | -$1.29K |
|
|
NBIS
1375
CALL
Nebius Group N.V.
NBIS
$56.1B
| $116K | 0.01% |
434
+384
| +768% | +$7.46K |
|
Similar funds
Simplex Trading's Q2 2016 Portfolio in Review
As of Q2 2016, Simplex Trading held 7,153 positions worth $1.5B, up 19% from $1.25B the previous quarter. Its ten largest holdings account for 19% of the portfolio.
Simplex Trading deployed $178M of net new capital in Q2 2016, opening 1,586 new positions and adding to 2,321 existing holdings. Its largest new stake was Biogen: 56,467 shares worth $13.7M.
By sector, the portfolio is most concentrated in Communication Services at 6.6% of assets, down from 6.9% a quarter earlier, followed by Healthcare and Technology.
On the sell side, the largest reduction was Broadcom, an estimated $36.7M trimmed.
- Simplex Trading's largest Q2 2016 buy was Biogen: 56,467 shares worth $13.7M.
- Simplex Trading added most to LinkedIn Corporation in Q2 2016, an estimated $21.4M increase.
- Simplex Trading's biggest Q2 2016 reduction was Broadcom, cutting an estimated $36.7M.
- Simplex Trading fully exited Alphabet (Google) Class C in Q2 2016, selling an estimated $20.1M.
- Simplex Trading's ten largest holdings make up 19% of its $1.5B portfolio in Q2 2016.
- Simplex Trading opened 1,586 new positions and closed 1,363 in Q2 2016.
- Simplex Trading's portfolio value rose 19% quarter-over-quarter to $1.5B.
Based on Simplex Trading's 13F filing for Q2 2016, filed 18 Jul 2016.