Summary: Stocks teetered between small losses and gains through the morning session as a selloff in healthcare offset gains in retail. Healthcare was under pressure ahead of an expected revised repeal-and-replace bill from the Senate GOP. Upbeat guidance from Target Corp. inspired a rally in the retail sector. Target anticipates a "modest increase" in same-store sales over the quarter, far better than analyst consensus of a decline. The company saw improvement in traffic and category sales trends. Delta declined after falling short of profit estimates in its second quarter. By region, domestic and Latin America revenue rose, while Atlantic and Pacific sales declined. Snap Inc. increased after Stifel upgraded its rating to BUY. The firm is optimistic over the company's user engagement and overall growth and says recent selloffs could be an overreaction to a lock-up expiration.
