JBS shares have surged over 30% since mid-March as stock analysts touted the perks of a US listing for its valuation. Some JBS investors have been buying more shares to sway the final vote, according to people familiar with the matter. The question had 246 million votes in favour and over 3 million abstentions. If approved, JBS shares will trade on the New York Stock Exchange as well as on the Sao Paulo bourse, called B3, via Brazilian depositary receipts. Recent recommendations by proxy advisory firms Glass Lewis and Institutional Shareholder Services may have swayed those investors' votes.