Tuesday's Small-Cap Winners & Losers

Small-cap stocks were ensnared in the red together with the major indices Tuesday despite leaping names like Xenonics (XNN Quote).

The California-based company's stock soared 23.7% on word it has shipped NightHunter3, its new weapons-mounted illumination system, to the U.S. Army for evaluation. Shares traded up to $2.19 despite a widened fiscal third-quarter loss.

Icagen (ICGN Quote), a biopharma based in Durham, N.C., also jumped after announcing it will join forces with Pfizer (PFE Quote) in order to develop new pain-treatment compounds. Pfizer will pay Icagen up to $38 million over the first two years of the collaboration, including an initial fee of $12 million and a sizable equity investment. Icagen shares rocketed this morning before slackening to a respectable gain of 6.8% at $2.05. Pfizer was recently down 1.5%. ...