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 | |
|---|---|---|---|---|---|---|
576
PUT
Transocean
RIG
$5.87B
| $443K | 0.03% |
5,085
+775
| +18% | +$7.93K |
|
|
577
CALL
Biogen
BIIB
$29.2B
| $442K | 0.03% |
624
-360
| -37% | -$94.9K |
|
|
ICPT
578
PUT
DELISTED
Intercept Pharmaceuticals, Inc.
ICPT
| $442K | 0.03% |
240
+32
| +15% | +$4.67K |
|
579
PUT
Expedia Group
EXPE
$31.3B
| $441K | 0.03% |
753
-179
| -19% | -$19.5K |
|
|
HAPN
580
PUT
Happen Inc
HAPN
$2.17B
| $441K | 0.03% |
451
+198
| +78% | +$5.71K |
|
581
CALL
Duke Energy
DUK
$99.7B
| $439K | 0.03% |
806
-75
| -9% | -$5.99K |
|
582
Avis
CAR
$5.81B
| $438K | 0.03% |
13,594
+4,879
| +56% | +$135K |
|
|
WBA
583
CALL
DELISTED
Walgreens Boots Alliance
WBA
| $436K | 0.03% |
2,066
+1,209
| +141% | +$97.6K |
|
|
584
Transocean
RIG
$5.87B
| $435K | 0.03% |
36,638
-39,841
| -52% | -$408K |
|
585
Range Resources
RRC
$9.13B
| $435K | 0.03% |
10,092
+7,698
| +322% | +$315K |
|
586
CALL
Exelixis
EXEL
$13.8B
| $433K | 0.03% |
2,787
+2,550
| +1,076% | +$14.7K |
|
|
HOLX
587
DELISTED
Hologic
HOLX
| $432K | 0.03% |
12,490
+12,433
| +21,812% | +$431K |
|
588
PUT
ServiceNow
NOW
$98.4B
| $432K | 0.03% |
2,265
+1,100
| +94% | +$15.3K |
|
589
PUT
Cleveland-Cliffs
CLF
$5.39B
| $430K | 0.03% |
1,423
+894
| +169% | +$3.68K |
|
590
PUT
Berkshire Hathaway Class B
BRK.B
$1.06T
| $429K | 0.03% |
1,524
+176
| +13% | +$25.2K |
|
591
Snap-on
SNA
$21B
| $429K | 0.03% |
+2,721
| New | +$432K |
|
|
CRR
592
PUT
DELISTED
Carbo Ceramics Inc.
CRR
| $428K | 0.03% |
269
-243
| -47% | -$3.27K |
|
|
TFCFA
593
DELISTED
Twenty-First Century Fox, Inc. Class A
TFCFA
| $428K | 0.03% |
15,836
-514
| -3% | -$15K |
|
594
CALL
Hershey
HSY
$35B
| $427K | 0.03% |
268
+68
| +34% | +$6.37K |
|
595
PUT
Under Armour Class C
UA
$3.02B
| $427K | 0.03% |
+2,200
| New | +$81.1K |
|
596
CALL
Royal Gold
RGLD
$17.1B
| $426K | 0.03% |
496
-9
| -2% | -$535 |
|
597
CALL
Coeur Mining
CDE
$16.3B
| $425K | 0.03% |
1,752
+1,457
| +494% | +$11.5K |
|
598
Immersion
IMMR
$217M
| $425K | 0.03% |
57,912
+40,542
| +233% | +$285K |
|
|
YHOO
599
CALL
DELISTED
Yahoo Inc
YHOO
| $425K | 0.03% |
2,428
-2,201
| -48% | -$81.2K |
|
600
Prudential Financial
PRU
$41.3B
| $422K | 0.03% |
+5,926
| New | +$447K |
|
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.