By Stan Choe and Alex VeigaThe Associated PressStock indexes ended mixed on Wall Street Wednesday, even as the market extended its winning streak to a third day and gains in technology companies pushed the Nasdaq to an all-time high. The S&P 500 rose 0.5%, coming off the heels of a whiplash start to the year where its worst quarterly performance since 2008 gave way to its best quarter since 1998.Read more on NewsOK.com