Investors who want to build a portfolio’s value over time will seek quality companies. Those stocks to buy have thriving businesses with proven returns on their investments. They are not speculations that report incredible revenue growth but lose more money as they get bigger. Stable companies have a positive cash flow. They either retain their…

On Aug. 30, the Technology Select Sector SPDR ETF (NYSEARCA:XLK) hit its peak at $159.89. The ETF then proceeded to fall 7% through Oct. 3 as volatility hung over the markets due to a host of investor concerns and rising yields. But tech stocks have rebounded since then, almost reaching their peak. Since then, the…