Today: Silicon Valley tech heavyweights Yahoo (YHOO), Google (GOOG) and Intel (INTC) set to release earnings this week, with Yahoo adding video to its offering. Also: Google hits record high, Hewlett-Packard (HPQ) gains after adding new board members.

The Lead: Yahoo, Google, Intel and more on deck for earnings, video is new trend

Silicon Valley's quarterly earnings season arrives this week, with more than 10 percent of the SV150 prepared to release their most recent financial results; Yahoo will take the lead with a video conference call to mark CEO Marissa Mayer's anniversary at the helm of the Sunnyvale company.

Yahoo announced Monday that it would discuss its quarterly earnings in a live video stream Tuesday afternoon, joining Netflix (NFLX), which announced its move earlier this month and will debut the offering July 22. Analysts and investors will be closely watching the report for the direction of Yahoo's display-advertising business, the company's core revenue generator that has not shown much progress under Mayer.

"Marissa Mayer has been Yahoo's CEO for almost a year and the metrics associated with its display (advertising) business have not improved," Carlos Kirjner of Bernstein Research reported earlier this month. "One could argue they have deteriorated."

Yahoo will be followed Wednesday by Intel, the world's leading chipmaker, which will release its first earnings report since naming Brian Krzanich to lead the company as its new CEO. Krzanich has attempted to focus the company on boosting its mobile efforts, but the stock has been pressured by doubts that lower-cost mobile chips will be able to make up the difference from declining sales of personal computers.

Joining Intel in Wednesday's earnings party will be San Jose e-commerce powerhouse eBay (EBAY), Milpitas memory maker Sandisk, San Jose platform company Xilinx, Fremont outsourcing company iGATE and Oakland telecom firm Zhone.

The big name on Thursday is Google, as the Mountain View search giant announces its quarterly earnings while its stock trades at record highs, ahead of a planned stock split that would halve the per-share price. Google's big move in the quarter was one of the largest acquisitions in its corporate history, the purchase of social-mapping app Waze at a reported cost of more than $1 billion, but analysts will also be looking at the performance of its largest acquisition, Motorola Mobility, which has continued to lose money under the Google umbrella.

Intel rival Advanced Micro Devices will also announce earnings Thursday, with investors hoping to see proof of a transition away from personal computers. Canaccord Genuity analyst Bobby Burleson reported last week that he expects "strong performance versus PC-centric names as the company ramps its embedded business and begins to transition away from a near-exclusive reliance on PC demand," which helped propel the Sunnyvale company to gains on Wall Street.

Fellow chip companies Fairchild Semiconductor and Cypress Semiconductor also plan earnings reports Thursday, as well as Sunnyvale-based Intuitive Surgical, which took a dive earlier this month after releasing preliminary earnings that showed slowing sales of its core product, the da Vinci surgical robot. Align Technology, Rambus, EFI, Cepheid and Ultratech will round out Silicon Valley's Thursday offerings.

One of the world's biggest non-Silicon Valley tech firms will also announce earnings Thursday, as Microsoft reveals its performance during a newsworthy quarter that included the introduction of the Xbox One and preparations for a reorganization that was officially announced last week.

SV150 market report: Google at record high, HP rises after refreshing board

Wall Street was relatively quiet Monday ahead of the week's raft of earnings reports, with indexes ticking up slightly.

Palo Alto PC powerhouse Hewlett-Packard had the most newsworthy day, adding three executives to its much-maligned board of directors, including legendary Microsoft executive Ray Ozzie and former McDonald's CEO James Skinner. HP shares gained 0.7 percent on the day to close at $26.38.

Google shares reached a record intraday high of $928 before closing with a 0.2 percent increase at $924.69, though the company lost its lead executive in China. Apple (AAPL) also gained 0.2 percent closing at $427.44 amid reports of a beefed-up iWatch effort and a death in China attributed to an iPhone. Yahoo moved 0.4 percent higher to $27.34 ahead of its earnings report, while beginning its dispersal of unused email addresses. VMware increased 0.7 percent to $71.01 while selling off a company it bought just three years ago and losing yet another executive.

San Jose's Power Integrations advanced 11 percent to $49.35 after raising its second-quarter outlook, and Sunnyvale semiconductor firm AppliedMicro moved 12.3 percent higher to $10.62 after a Raymond James analyst upgraded the stock and wrote investors "are just starting to grasp the true magnitude" of AppliedMicro's latest server options. Shares of NetApp also seemed to benefit from an analyst upgrade, as the stock rose 2 percent to $40.10 after Morgan Stanley analyst Katy Huberty said the company's second-half outlook was improved.

On the negative side, Tesla Motors (TSLA) fell 2 percent to $127.26 in its first day on the Nasdaq 100 index, following CEO Elon Musk's star turn at the first conference for fans of the electric car company. Yelp dropped 1.9 percent to $38.67 and eBay declined 1 percent to $56.45.

Up: SunPower (SPWRA), SolarCity, Oracle (ORCL), NetApp, AMD, Pandora, Zynga, Facebook, HP, VMware, Gilead, Juniper, Yahoo, Netflix, Apple, Google, Intel

Down: Tesla, Yelp, Applied Materials, Salesforce, eBay, LinkedIn, Adobe (ADBE), Electronic Arts (ERTS), Workday

The SV150 index of Silicon Valley's largest tech companies: Up 1.83, or 0.14 percent, to 1,299.36

The tech-heavy Nasdaq composite index: Up 7.41, or 0.21 percent, to 3,607.49

The blue chip Dow Jones industrial average: Up 19.96, or 0.13 percent, to 15,484.26

And the widely watched Standard & Poor's 500 index: Up 2.31, or 0.14 percent, to 1,682.5

Check in weekday afternoons for the 60-Second Business Break, a summary of news from Mercury News staff writers, The Associated Press, Bloomberg News and other wire services. Contact Jeremy C. Owens at 408-920-5876; follow him at Twitter.com/mercbizbreak.