stock price movement is strongly relied on market expectation on that stock. Any relevant incident either to boost up or dampen the value of company will be well-calulated and reflexed into the price. To maximize stock price, that company need to create a viable business to ensure the stability of future cash flows, any revenue enhancements and cost reductions will create value given that action will not negatively affect future cash flows.
The cost reduction that won't or potentially undermine value is the reduction of project investments, innovations and risk management because those action will increase risk and lessen competitiveness.
To maximize profit, the company can do it by maximizing revenue and minimized both operational cost and financial cost. Some measures to spur sales are extending the flavorable term of payment to customers (this will increase the accounts receivable), sales promotions, etc. while operational and financial cost reduction can be achieved by sophisicate capital budgeting and opimal cost of capital.