** Data center services firm TSS' TSSI.O shares fall 3.8% to $17.89
** TSSI announces pricing of $51 million stock offering
** Co sold 3 million shares at $17 apiece, an 8.6% discount to stock's last close
** Lucid Capital Markets is the sole bookrunning manager for the offering
** Stock closed down 1.2% at $18.60 on Tuesday
** Proceeds will be used for general purposes, including repaying debt and capital expenditures
** TSSI has 23.7 million outstanding shares as of June 30, according to offering prospectus
** As of last close, TSSI shares up 56.8% YTD