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 | |
|---|---|---|---|---|---|---|
2526
CALL
Host Hotels & Resorts
HST
$16.8B
| $30K | ﹤0.01% |
181
+126
| +229% | +$1.98K |
|
2527
CALL
IAMGOLD
IAG
$8.47B
| $30K | ﹤0.01% |
287
+241
| +524% | +$821 |
|
2528
CALL
Intuit
INTU
$81.1B
| $30K | ﹤0.01% |
26
-75
| -74% | -$7.84K |
|
2529
PUT
Leidos
LDOS
$14.1B
| $30K | ﹤0.01% |
+29
| New | +$1.43K |
|
2530
PUT
Lincoln National
LNC
$7.91B
| $30K | ﹤0.01% |
446
+167
| +60% | +$7.08K |
|
2531
CALL
Live Nation Entertainment
LYV
$41.2B
| $30K | ﹤0.01% |
262
+205
| +360% | +$4.68K |
|
2532
PUT
O'Reilly Automotive
ORLY
$72.4B
| $30K | ﹤0.01% |
750
-390
| -34% | -$6.9K |
|
2533
CALL
Paylocity
PCTY
$6.71B
| $30K | ﹤0.01% |
+97
| New | +$3.64K |
|
2534
PENN Entertainment
PENN
$2.74B
| $30K | ﹤0.01% |
2,205
+2,064
| +1,464% | +$32.3K |
|
2535
PetMed Express
PETS
$42.5M
| $30K | ﹤0.01% |
+1,620
| New | +$29.8K |
|
2536
PUT
Sunoco
SUN
$14.2B
| $30K | ﹤0.01% |
184
+38
| +26% | +$1.24K |
|
2537
PUT
Vipshop
VIPS
$6.84B
| $30K | ﹤0.01% |
113
-587
| -84% | -$7.18K |
|
2538
Wayfair
W
$11.1B
| $30K | ﹤0.01% |
+771
| New | +$30.8K |
|
|
CLVS
2539
PUT
DELISTED
Clovis Oncology, Inc.
CLVS
| $30K | ﹤0.01% |
119
-316
| -73% | -$4.62K |
|
|
CLR
2540
PUT
DELISTED
CONTINENTAL RESOURCES INC.
CLR
| $30K | ﹤0.01% |
293
-59
| -17% | -$2.32K |
|
|
WPX
2541
CALL
DELISTED
WPX Energy, Inc.
WPX
| $30K | ﹤0.01% |
719
+3
| +0.4% | +$27 |
|
|
NBL
2542
PUT
DELISTED
Noble Energy, Inc.
NBL
| $30K | ﹤0.01% |
238
+9
| +4% | +$316 |
|
2543
ACI Worldwide
ACIW
$5.72B
| $29K | ﹤0.01% |
+1,524
| New | +$30.9K |
|
|
AGEN
2544
Agenus
AGEN
$249M
| $29K | ﹤0.01% |
376
-630
| -63% | -$49.1K |
|
2545
PUT
Akebia Therapeutics
AKBA
$327M
| $29K | ﹤0.01% |
403
+203
| +102% | +$1.77K |
|
2546
CALL
AMN Healthcare
AMN
$1.28B
| $29K | ﹤0.01% |
83
-202
| -71% | -$7.47K |
|
|
ASA
2547
ASA Gold and Precious Metals
ASA
$948M
| $29K | ﹤0.01% |
+2,014
| New | +$25.3K |
|
|
BNY
2548
CALL
Bank of New York Mellon
BNY
$108B
| $29K | ﹤0.01% |
127
-150
| -54% | -$5.97K |
|
|
BLUE
2549
CALL
DELISTED
bluebird bio
BLUE
| $29K | ﹤0.01% |
11
+3
| +38% | +$1.7K |
|
2550
PUT
Century Aluminum
CENX
$4.57B
| $29K | ﹤0.01% |
451
+422
| +1,455% | +$2.96K |
|
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.