Key TakeawaysShares of Google parent Alphabet lost ground Wednesday amid concerns about higher spending on artificial intelligence (AI) investments. Analysts were more bullish, with several raising their price targets based on Google's strengths and signs of benefits from AI.However, some warned Alphabet could still face an "uphill climb ahead" in the second half due to tougher comps and expected search and YouTube deceleration. Shares of Google parent Alphabet (GOOGL) lost ground Wednesday amid concerns ab ...