Shares of Workhorse Group Inc. dropped 2.9% in premarket trading Tuesday, after the electric delivery trucks maker reported a wider-than-expected third-quarter loss and revenue that came up short, but affirmed its full-year revenue outlook. The net loss narrowed to $35.4 million, or 22 cents a share, from $81.1 million, or 63 cents a share, in the year-ago period. The FactSet consensus for per-share losses was 12 cents. Revenue swung to $1.55 million from negative $576,602, but missed the FactSe