NVIDIA Corp. (NVDA)

Marvell brushed off a light quarterly outlook, while Workday slumped in spite of raising its guidance. Valuations are a factor, but so are long-term expectations.

Though gaining significant share from Nvidia in the lucrative and fast-growing AI training accelerator market might prove easier said than done, a slew of companies are making big bets in this space.

Remember, shorts are great fuel for exaggerated moves.

NVDA may be back in the game, but they aren't the star again. At least not yet.

Nvidia is recovering well on Friday, but it may yet be in need of more help before climbing back to its 2018 heights.

Nvidia's second-quarter profits were well below its year-ago earnings but were nicely ahead of analyst expectations.

Let's see what the charts look like.

Stocks to buy on this volatile global macro environment, and what needs to change to avoid a recession.

The largest impediment to success for firms like TLRY -- which is expected to report a 27 cent loss per share Tuesday night -- remains federal legalization of marijuana across the U.S.

Investments by major enterprise software firms in AI/machine learning features are growing considerably. Chip developers and cloud service providers that make a lot of these investments possibly stand to benefit.

While it's understandable that AMD's guidance has sparked profit-taking after a big run-up, the company still looks poised to strongly grow its CPU and GPU sales in various end-markets.

Blaming China woes for the slip, some advise growth ahead for Advanced Micro Devices.

From Adobe to Zendesk, plenty of stocks will rise or fall regardless of what the central bank does.

The fact that the stock's running could be because CEO Bob Swann called the bottom in data center spend.

And as the semiconductor sector continues to shine, Brooks Automation is a name to keep in mind.

Though it would likely take a while for Apple to begin using its own 5G modem, doing so could yield major cost savings and also carry other benefits.

Also, defense industry names can breathe easier with word of debt ceiling and federal spending deal.

Much of the money that Microsoft is investing in startup OpenAI will likely go towards AI computing systems featuring Nvidia GPUs.

The chip manufacturing giant issued upbeat Q3 sales guidance and forecast this year's capital spending will be at the high end of a prior guidance range.

And just why do we have a federal debt ceiling, anyway? An argument for doing away with it.

The chip manufacturing giant, whose clients include Apple, Nvidia, AMD and Qualcomm, just reported strong June sales and beat its Q2 revenue guidance.

These top picks rose between 22% and 55% in the first half of 2019.

Apple's push toward services is a valuation-driven necessity.

A subset of tech is expensive, as well as tech IPOs, but the majority of sectors are far from overvalued.

Skeptics say nothing was resolved with China deal, but they're wrong -- do they know our stock markets have run wild the first half of the year not despite, but because of the endless pessimism?

There still appears to be plenty of interest among chip developers in further consolidation, and the easing of export restrictions on Huawei might make them less worried about Chinese regulators.