U.S. officials, including Secretary of State Mike Pompeo, have accused Iran of orchestrating devastating strikes on Saudi oil installations over the weekend.Politicsread more
"The president is right to make this the center point of the rising and sustained trade conflict," says Sen. Chris Coons.Politicsread more
"We're gonna take this meeting by meeting. We're not on a preset course," Clarida told CNBC's Sara Eisen during an interview Friday on "Squawk on the Street."The Fedread more
More than 400 Chinese products will be temporarily exempted from tariffs that President Donald Trump's administration imposed last year.China Economyread more
Netflix CEO Reed Hastings admitted that it's a "whole new world starting in November," with the launch of Apple TV+, Disney+ and other new streaming services.Technologyread more
President Donald Trump sarcastically tweeted that New York City "is devastated" by Mayor Bill de Blasio's exit from the 2020 presidential race. Two other Democratic mayors,...2020 Electionsread more
The United Auto Workers union and General Motors are making progress on their labor contract talks, however there remain "many" outstanding issues, according to a union leader...Autosread more
Democratic presidential candidate Elizabeth Warren has been given more than one opportunity over the past two weeks to clarify her response to a key question about her...Politicsread more
Protesters across the world Friday joined in on demonstrations to demand action on climate change.Environmentread more
Apple will get a taste of whether upgraded features on the new iPhone 11 are enough to lure shoppers to retail stores around the world as the new smartphones officially hit...Technologyread more
James Bullard said he dissented on this week's Fed decision to lower rates by a quarter percentage point because he didn't think the cut was big enough.The Fedread more
Shares of Twitter dropped about 24 percent Thursday—a paper loss of $8.7 billion—after it reported sluggish user growth. The selloff was a sign that the social network will have a tough time regaining its stature with advertisers, at least until it releases better numbers, a senior tech analyst told CNBC.
(For the latest stock price, click here.)
"To us, when you're talking about opportunities relative to communicating with advertisers, you want to lead with a large and growing and increasingly engaged user base," Scott Kessler of S&P Capital IQ told "Squawk on the Street." "And Twitter doesn't seem to have the data to support that proposition."
(Read more: )
Twitter closed Wednesday's trading session at $65.97 a share before posting earnings after the bell, the first quarterly report since it went public in November. Shares reached a low of $50 during trading Thursday, on pace for Twitter's worst day on record. The formerly red-hot stock had zero room for error, said Colin Sebastian, a senior research analyst at Robert W. Baird & Co.
Despite a rocky trading session Thursday, Twitter's stock remained up 99 percent from its IPO price of $26 a share.
"The stock was priced for perfection—the underlying metrics really do matter in that scenario," Sebastian said. "The spotlight is back on user growth, and the stock will be in the penalty box until we get a better read on whether their initiatives are having any impact."
Sebastian, who holds a neutral rating on Twitter stock, said he would consider buying shares if they drop into the mid-$40 range.
Kessler said he has held a sell rating on Twitter for the past few months, based largely on concerns about user engagement.
During a later interview on "Squawk on the Street," Cowen & Co.'s John Blackledge said Twitter seems to have less powerful "network effects" than other social media companies, such as Facebook, LinkedIn and Instagram. For example, he said, photo-sharing network Instagram added twice as many users as Twitter between the second and fourth quarters of 2013.
(Read more: Reporters vent on Twitter about Sochi hotels)
Twitter "got a lot of promotion around their successful IPO in the fourth quarter," Blackledge said. "A lot of people thought that would help user growth and engagement. Clearly it didn't."
Eric Jackson has an idea where Web users are heading instead of Twitter—and it's far away from the public forum that the micro-blogging platform has helped cultivate. Jackson, the founder of Ironfire Capital, believes private-messaging platforms such as WhatsApp are drawing users away from established social networks such as Twitter.
"That's something to watch for a potential threat to Facebook in the quarters ahead, as well," Jackson said during a later appearance on "Squawk on the Street." "It is really surprising how the new user growth is coming from these private networks."
—By CNBC's Jeff Morganteen. Follow him on Twitter at @jmorganteen and get the latest stories from "Squawk on the Street." CNBC's Giovanny Moreano contributed to this report.