** Persimmon PSN.L rises 2.4% to 1,052p; among top gainers on FTSE 100 index .FTSE
** Homebuilder reaffirms 2026 completions target, subject to stable market conditions; sees pre-tax profit in line with market estimates of 462 mln pounds ($621.9 mln), per company-compiled consensus
** Says reviewing costs within business, working with suppliers to mitigate price increases tied to Iran war
** YTD, PSN down ~22%
(Reporting by Prerna Bedi in Bengaluru)
((Prerna.Bedi@thomsonreuters.com ; +91 98052 24616))