Tech Five: Apple, Twitter shares sinking

Has Apple reached the end of an era with sales of the iPhone? Meanwhile, a lack of user growth stings Twitter shares. Again.

Let's look at tech stocks to watch Wednesday:

Apple. Investors had expected a drop off for the tech giant, but not like this. Shares dipped nearly 8% in pre-market trading after Apple reported earnings of $1.90 a share, missing the $2 estimate from analysts, according to S&P Global Market Intelligence. Apple sold 51.2 million iPhones during the second quarter, down 16% from the same time last year. Also, profits were down 18% from the year before.

Twitter. The social network is not growing fast enough for Wall Street's liking. Shares sunk 15% before the bell Wednesday after missing on both its first quarter revenue and outlook. Twitter reported revenue of $595 million, a 36% bump from last year but short of analyst forecasts. Its second quarter outlook was worse: projecting revenue as high as $610 million. Wall Street projected $677.1 million.

Facebook. Can Mark Zuckerberg stop the bleeding among tech stocks? His social network reports first quarter results after the markets close Wednesday. Analysts polled by S&P Global Market Intelligence forecast earnings of 62 cents a share on revenue of $5.25 billion.

Comcast. The cable giant is reportedly in talks to acquire DreamWorks Animation in a deal valued worth more than $3 billion. The studio is behind hit animated films Shrek and Kung-Fu Panda. Shares of Comcast are up in morning trading.

AT&T. Shares of the telecommunications giant are trading lower despite topping Wall Street projections for the first quarter. Thank its acquisition of DirecTV, which bumped AT&T revenue 24%.

Follow Brett Molina on Twitter: @brettmolina23.