What's The Downside To Lowe's Valuation If Its EBITDA Margin Continues To Fall?

Lowe's seems to be perpetually lagging behind Home Depot, and sometimes even an earnings and revenue beat isn't enough, as the latter company would have inevitably done a better job. This was the case when Lowe's released its fourth quarter and FY 2017 earnings just a few days after Home Depot....