BUZZ-Travis Perkins: heads to biggest 2-day loss in c.15 mnths
** Travis Perkins (LSE: TPK.L - news) down c.2 pct, top FTSE-100 loser & on track for sharpest two-day loss since May last year
** Britain's biggest supplier of building materials' in-line results reported day earlier fail to impress market
** Stock slumps despite at least 3 brokerages upping their TP; median TP on stock at 2300p
** About 1/3rd of avg daily volume traded within 1.5 hr of trading
** Up to Tuesday's close, stock had risen 19 pct compared much steeper than c.9.6 pct increase in the FTSE-350 Support Services index (RM (LSE: RM.L - news) : esha.vaish.thomsonreuters.com@reuters.net)