The company behind messaging app Snapchat, Snap Inc, has brought in its valuation target at $19.5bn to $22.2bn - big numbers but still lower than the $25bn hoped for in initial documents. And shares in defence business Cobham have crashed 20% today while profits at drug company Shire have soared 60%. Richard Hunter, head of research at Wilson King Investment Management, went through this and the day's need-to-know company stories with Share Radio's Ed Bowsher.
