The maintenance of an Underperform rating suggests a cautious outlook on Nordstrom's stock by B of A Securities, indicating potential challenges ahead. However, the increase in the price target from $13 to $15 reflects a slightly more optimistic view of its valuation, possibly due to some positive developments or adjustments in the market's expectations. This mixed signal could lead to neutral short-term price movement as investors digest both the continued underperformance expectation and the raised valuation target.