Stocks wobbled in morning trading on Wall Street Thursday as investors study moves by central banks to fight rising inflation. The S&P 500 rose 0.1 percent as of 10:20 a.m. Eastern and is hovering around the record high it reached last Friday. The Dow Jones Industrial Average rose 178 points, or 0.5 percent, to 36,102 and the Nasdaq fell 0.7 percent. Health care companies and banks made solid gains. Pfizer rose 1 percent and Bank of America rose 1.7 percent. Technology companies fell and offset gains elsewhere in the market. The sector is full of companies with hefty values and that weight tends to sway the market. Apple shed 2 percent. Bond yields fell. The yield on the 10-year Treasury fell to 1.43 percent from 1.46 percent late Wednesday. On Wednesday, the Federal Reserve of the U.S. announced an acceleration of its pullback of economic stimulus as it pivots to …