Take a look at some of Tuesday's early movers:
UBS — Goldman Sachs downgraded the financial services company to "neutral" from "buy," citing lack of compelling valuation relative to other European banks ahead of their strategic announcements. The stock fell more than 2 percent in pre-market trade. Goldman also added Credit Suisse to its "conviction list."
Fitbit — Pacific Crest initiated coverage of the wearables maker with an "overweight" rating and a price target of $47 a share. The rating is based on Fitbit's leadership in a market expected to grow more than 100 percent this year, the note said. The analyst said Apple only poses significant risk if it directly enters the fitness tracking space. Fitbit jumped nearly 3 percent in pre-market trade.
Cheniere Energy — Activist investor Carl Icahn disclosed after the close Monday that he increased his stake in the liquefied natural gas company to 9.6 percent from 8.2 percent. The stock jumped nearly 2 percent in pre-market trade.
InterOil — Goldman Sachs added the Papua New Guinea-focused oil and gas firm to its "conviction buy" list and kept the price target at $45 a share, a 32.7 percent upside from Monday's closing price of $33.90.
Fiat Chrysler, General Motors, Ford — Fiat and the United Auto Workers union continued negotiations past a midnight deadline. Contracts with GM and Ford were extended while the union focused on talks with Fiat.
JMP Securities initiated coverage of the multifamily REIT sector with an "overweight" rating. American Campus, Apartment Investment, Preferred Apartment Communities, Education Realty Trust, Equity Residential, Essex Property and UDR received a "market outperform" rating.