Twitter unveils bold change to timeline; Disney falls on cable growth concerns; SolarCity sinks

Here are some of the stocks the Yahoo Finance team will be tracking for you today.

Twitter (TWTR) unveiled some bold steps in moving away from its traditional timeline format. Users now have the option to turn on a new tool that allows them to see the most recent tweets first via an algorithmically-generated timeline. The change will make it more appealing for advertisers because ads can be targeted to tweets that promote products. The company said the new feature is available for all users on iOS, Android, and the Web. This announcement comes before the release of Twitter's quarterly results after the close, which will be closely monitored following a steep decline in the company's stock price over the past year. The social media service has had a tough time reigniting user growth. Analysts are looking for Twitter to report earnings of $0.12 per share on revenue of about $710 million.

Disney (DIS) delivered record profits and revenue that also topped expectations for its fiscal first quarter thanks to the phenomenal success of the latest installment of "Star Wars." However, investors remain concerned about subscriber growth for its ESPN sports network and other cable channels as more people opt to cut the cord.

Time Warner (TWX), the owner of CNN and the Cartoon Network, posted earnings per share that beat analysts' estimates as it cut expenses and its HBO division continued to shine. But revenue fell short of forecasts as a lack of blockbuster movies from its Warner Bros. studios weighed on sales.

Deutsche Bank's (DB) U.S.-listed shares were sharply higher in early trading after the Financial Times reported that Germany's largest lender is weighing a multi-billion dollar bond buyback. A big bond buyback would help boost the share price, which has plunged since the beginning of the year. This comes after CEO John Cryan said Tuesday the bank was "rock solid."  

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SolarCity (SCTY), which is backed by Tesla (TSLA) founder Elon Musk, saw its stock take a hit this morning. The largest installer of solar panels in the U.S. said it expects a bigger-than-expected loss for the current quarter, as installations fell short of targets. This comes as the company reported better-than-expected earnings and revenue in the fourth quarter.