Tech Five: Facebook changes terms for video ad buyers

Facebook will now give advertisers the option of being charged for their video ads only if it was viewed for 10 seconds or more. This new option is significantly longer than the current policy, which could theoretically charge advertisers for videos that the user simply just scrolled past on their feed.

Let's take a look at the tech stocks to watch Wednesday:

Facebook (FB). The new 10-second view option offers advertisers more of a guarantee that the user actually engaged with the ad, according to Re/Code. This change comes after Facebook announced that it changed the algorithm that its News Feeds uses for showing users videos.

Sony (SNE). The Japanese tech company launched a new crowdfunding platform to support projects developed by its employees, the company announced Wednesday. The platform -- called First Flight -- is designed to "accelerate new business creating efforts," the company said in a press release.

Fitbit (FIT). Two weeks after its trading debut, shares of Fitbit are still soaring in the market. As of Wednesday morning trading, the health care tracker was trading up more than 3%. According to recent data from Slice Intelligence, about 73,000 more Fitbits were sold than Apple Watches in May.

Apple (AAPL). Apple Music had a relatively successful debut Tuesday, barring some complaints that it was a bit more complicated to use than competing services. Shares of Apple were trading up nearly 1% Wednesday morning.

Alibaba (BABA). Chinese e-commerce giant Alibaba struck an entertainment deal in China to expand its web, cable, and film subscription services, according to The Wall Street Journal. Alibaba shares were up nearly 2% Wednesday morning.

Follow Trisha Thadani on Twitter: @TrishaThadani