** Shares of contract research firm IQVIA Holdings IQV.N fall 3.7% to $154.99 premarket
** In Q1, IQVIA's book-to-bill ratio, which compares the value of new orders coming in versus billings, of 1.04x fell short of the average of three analysts' estimates
** Leerink Partners analyst Michael Cherny said "the headline that will likely be the main focus is the 1.04x book-to-bill" that would "overshadow what was an otherwise solid print across the board"
** Co raises 2026 EPS forecast to range of $12.65 to $12.95, from prior view of $12.55 to $12.85 per share
** Analysts were expecting 2026 EPS to be $12.70 - LSEG
** Co reports Q1 adj profit of $2.90/share vs analysts' avg estimate of $2.82/share - LSEG
** Co posts Q1 sales of $4.15 billion vs analysts' avg estimate of $4.10 billion - LSEG
** As of last close, stock fell 28.6% YTD
(Reporting by Kamal Choudhury in Bengaluru)
((Kamal.Choudhury@thomsonreuters.com;))