One Factor Driving American Airlines (AAL) Stock Down Today

NEW YORK (TheStreet) -- American Airlines (AAL) shares are down 0.37% to $37.84 on Wednesday following news that its 14,500 passenger service agents have voted to unionize for the first time in their history.

The workers will be represented jointly by the International Brotherhood of Teamsters and the Communications Workers of America (CWA), who expects negotiations on a new contract to begin in November.

About 86% of the 11,187 members voted to unionize.

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AAL Chart AAL data by YCharts

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