Pinterest is kicking off its roadshow this week ahead of its public debut on the New York Stock Exchange. The company set a price range of $15 to $17 per share, which values the company below its last private valuation. Plus, Lyft is threatening to take legal action against Morgan Stanley for short-selling its stock ahead of its IPO. Hope King and Tim Stenovec break down these stories and much more in our weekly Grab & Go segment.