BUZZ-AstraZeneca: breaks day's low on Pfizer/Hospira deal
** AstraZeneca (NYSE: AZN - news) breaks through day's low, down 2.8 pct after Pfizer (NYSE: PFE - news) confirms approach for Hospira (NYSE: HSP - news)
** Traders say tie-up ends speculation Pfizer could seek to acquire Astra
** Co reported weak Q4 earnings on Thursday but stock also seen for sale on Pfizer news
** Bulge bracket trader says long-term holders should buy any dips created by news
** Stock bottom of FTSE 100
(RM (LSE: RM.L - news) : alasdair.pal.thomsonreuters.com@reuters.net)