The Twitter symbol is displayed at the post where the stock is traded on the floor of the New York Stock ExchangeBy using Gerry Shih SAN FRANCISCO (Reuters) – Twitter shares soared greater than 9 p.c on Monday to their best level for the reason that firm's preliminary public providing after a spate of product announcements that could raise its income prospects. Twitter has principally traded within the low-$forty range in recent weeks considering November 7, when shares in brief topped $50 in the hours following its highly anticipated IPO. Twitter on Thursday formally started allowing entrepreneurs to point out in my view-tailor-made ads on Twitter, in accordance with internet sites the person has prior to now visited. Apple Inc introduced ultimate week it might acquire Topsy, an analytics firm that mines Twitter information, for $200 million, consistent with media experiences.