Alphabet Inc. Class C (GOOG)

While valuations are clearly very high for many tech names, investor euphoria might not go away until news flow meaningfully worsens.

TikTok could give Microsoft the kind of large-scale consumer mobile footprint it has wanted for years. And Microsoft in turn has some assets that TikTok could find useful.

Investors might have to take it on the chin -- and then do some soul searching -- as names like Microsoft, Tesla and other stars get hit.

It will not collapse on valuation, fraud, currently non-existent inflation or its own weight. But here's what could knock it off its feet.

Here's a better way to play things.

A look at recent years' multiple expansion in three of the biggest name companies will point out that they're more expensive now than over the past 10 to 20 years.

Along with its anticipated plans to migrate away from Intel's PC CPUs, Apple revealed a number of UI and feature improvements for its operating systems and apps.

Think you're diversified? Understanding what you are investing and trading in is key.

The S&P 500 is no longer a diversified index.

It's no illusion, you need a little patience and pushing to be that one in a million investor.

The massive movement toward sector ETFs is just simply not prudent. Here is why.

These funds invest in companies poised to benefit from millennial spending trends.

Should competitors act in a way that puts the U.S. economy at a disadvantage, then by all means the FOMC must act with a level of anger that intimidates.

Four ETFs designed around Kevin O'Leary's growth, income and wealth preservation-oriented strategy.

Follow these rules and you won't have to put up with Rumpelstiltskin-like waiting to turn big profits from companies that look ready to go belly up.

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

After Facebook posted a great report yet saw its shares decline in morning trading Thursday, investors may be nervous about how Amazon, Alphabet and others fare after releasing their results.

Watch the Russell 2000, housing activity, and mergers and acquisitions.

Charts need work and some good leadership needs to develop. There is no reason to be overly negative but not much reason to be wildly bullish right now.

It's a good market for scalping but not a good time to be building big position trades.

It seems the market has not learned its lesson.

The Chinese company is about to pay a fat dividend on its American depository shares, and it isn't too late to get in on it.

Investors Intelligence bulls finally pass 55%, the New York Stock Exchange sees new highs and Google disappoints, which makes us consider whether May is really the month to sell.

Bears have had a few opportunities to gain some momentum, but the dip buyers refuse to relent.

Forget Elon Musk. My beef is with Alphabet CFO Ruth Porat.

These reports will be a big test of market sentiment.

Lock in profits in mining stocks as demand picks up.