New York (AP) -- A JPMorgan analyst reduced some casino operators' estimates Monday, partly on a slowdown in Las Vegas spending and Macau revenue growth. Analyst Joseph Greff said in a client note that Wynn Resorts Ltd. is still well-positioned due to its solid balance sheet, assets and strong project funding, but investors may be nervous about the opening of its Encore resort in Las Vegas later in the year given current economic conditions.