ann winblad weighed in. ann winblad: these companies are quite large.noticed a lot of big moves. microsoft bought linkedin. and i think we'll see more acquisitions from these companies at that scale. we noticed a big acquisition by amazon in process of whole foods. these companies in order to move their needles have to think big as well. they are also investing in small come any. google was one of the most of prolific investors in small come any making small bets on a distant future. microsoft last year created an investment arm. apple does not have an investment arm. amazon has an alexa fund where they are investing in internet companies to complement their amazon ecos. so that money is going multiple places by all of those companies. maria: we talk about these top technology companies a lot because they just won't quit wet were it's am or amazon or google parent alphabet. they have listen so much. do you think they will continue rising? are you worried about valuations within the public market? ann winblad: the valuations are high. but when you look a