Citi analyst Tyler Radke says his recent fieldwork points to acceleration in data/analytics tools investments, relative to even three months ago. The analyst's top three ideas remain unchanged with Alteryx (AYX), Tableau (DATA) and Talend (TLND). He has the highest confidence in upside to estimates for his top-pick Alteryx. Radke boosted his price target for the shares to $81 from $61 and keeps a Buy rating on the shares. The analyst also raised his price target for Tableau to $140 from $125 and for Talend to $86 from $76. He expects all three to show an acceleration in growth rates.