** Shares in Diasorin DIAS.MI rise around 7% after the Italian diagnostics group reports a narrower-than-expected drop in core earnings and confirms its 2026 guidance
** Q1 Adj EBITDA fell 15.9% to 90 million euros ($106.01 million) but beat consensus by 2.6%, says Banca Akros
** A Milan-based trader cites better-than-expected profitability, debt reduction and confirmed guidance for 5–6% revenue growth and margins of around 32–33% as positives
** "We continue to see strong fundamentals and view management's guidance as achievable," says Morningstar, adding it awaits further detail on the 2027–2030 plan at the May 20 CMD
** Stock is the top gainer on Italy's blue-chip index .FTMIB and on track for its best day since December 2023. Down 1.5% YTD
($1 = 0.8490 euros)
(Reporting by Enrico Sciacovelli)