How Interest rates affect the Stock Market?

How Interest rates affect the Stock Market?

Interest rates are the percentage at which the Lenders lend the money to creditors. The lenders may be Banks or Individuals or Financial Intstitutions. The creditor may be any one.
But here, the Interest rates we are talking about is the rate at which a central bank or federal bank of any country lends the money to other banks. In USA, the central bank is Federal Reserve and in India, it is Reserve Bank of India.
Central Banks world over lends money to other Banks of their country. The Interest rate at which it is being given to the Banks really matters. If there is inflation, in order reduce the price rise, Central banks increase their lending rates in order to reduce the flow of money in to the system. This in turn reduce the price rise.
And in times of deflation ( prices decline steadily ), Central banks reduce the lending rates to inject money in to the system.

If interest rates are hiked, then the Banks will increase their lending rates and the Industry which is financed by Banks will get affected by the rising interest cost. Thus it affects the bottomline of the Company.
Since companies bottomlines are affected by rising Interest cost, their earnings will be affected which in turn affect the sentiments of the stock Market, which in turn affect the stock prices of the companies.