One has to identify at what valuation one is comfortable investing and then invest in the right stock at the right price and for the right time to make the most returns from the investment.
The interest coverage ratio determines how easily the company can pay their debt. The ratio is a factor of companies earnings and the interest being paid.
ebitda stands for Earnings Before Interest, Tax, Depreciation and Amortization. In simple terms ebitda is earnings capacity of the company with pure operations factors only.