Poor Jack Dorsey. The embattled CEO of Twitter (TWTR) - Get Report didn't get much sleep Sunday night. "Was really hoping to talk to Twitter employees about this later this week, but want to set the record straight," he wrote at midnight.

By "this," Dorsey was referring to the company's announcement Monday that four key executives were leaving: Katie Jacobs Stanton, head of global media, Alex Roetter in engineering and Kevin Weil, VP-product. Dorsey added that human resources VP Brian "Skip" Schipper is also departing, but didn't mention Jason Toff, who manages the company's video service, Vine. Toff tweeted his own announcement about his departure to Alphabet's (GOOGL) - Get Report Google.

The tech site Recode described the exodus as a "Twittermageddon." And there's more to come, according to their sources, they said: Jana Messerschmidt, vice president of global business development and platform.

Investors greeted the news with a "thumbs down," battering shares down 4.6% in trading Monday. Throughout the day, Twitter barely managed to hang onto a share price of $17, which is only pennies above the company's all-time low closing price of $16.69. A year ago, Twitter shares commanded $57 a share.

But grumpy investors may want to take a second look, according to Marketbeat.com. Only three of 48 Wall Street analysts surveyed are urging investors to sell, and 18 predict the stock will double in value over the next 12 months.

TheStreet Recommends

Weaknesses in the supply chain at Apple (AAPL) - Get Report  have prompted Wall Street's analysts, even those who are super bullish on the stock, to lower their targets for the quarter.

But that doesn't mean that loyal Apple investors, who sent shares down nearly 2% in trading Monday to $99.41, should continue to cool in their affections.

And that doesn't mean investors shouldn't buy now. Five of Wall Street's top analysts see the stock as a buy at a share price ranging from $140 to $155, while two lowered their expectations to market outperform at $130 to $135.

At Goldman Sachs, "We see the current market weakness as a buying opportunity," said Simona Jankowski, who thinks the stock will rise to $155 over the next 12 months. But William Blair analyst Anil Doradla, who rated the stock an outperform, lowered his expectations to $130 a share. "At $97.13, Apple trades at 10.4 times our revised fiscal 2016 EPS estimate, a discount to the company's three-year historical average of 12.6 times," he said.

In a survey of analysts conducted by Marketbeat.com, 39 of 53 analysts surveyed rated the stock a buy, and two analysts rated Apple a "strong" buy. Over the next 12 months, they believe that the stock will see an upside of 42%, bringing Apple shares up to $141. At a current price of nearly $100, that news could be something to help reignite the affection of disenchanted investors.

(Twitter, Apple and Alphabet are all holdings of Actions Alerts PLUS, the charitable trust managed by TheStreet's Jim Cramer).