U.S. stock markets are extending their winning streak into Wednesday's midday trading, buoyed by growing optimism for a potential interest rate cut by the Federal Reserve in December. All three major indexes are posting gains, building on strong performances earlier in the holiday-shortened week. Investors are closely watching a mix of corporate earnings, economic data, and the impending Thanksgiving holiday, which will see markets closed on Thursday and an early close on Friday.Major Indexes Show Midday St ...