With the first half of 2025 nearly over, many investors are taking time to reevaluate their portfolios and take advantage of quality stocks that can be bought at a discount. It certainly requires some confidence to buy shares of a company when they're down, but it's opportunities like these that offer the potential for outsize returns.Two Fool.com contributors, for example, recognize that oil supermajor Chevron (CVX 0.53%) and data center equipment provider Vertiv (VRT -3.08%) are two worthy considerations ...