U.S. stocks closed higher on Thursday regaining some of their momentum thanks to a rebound by technology stocks, while volatility dropped to record lows ahead of an eventful economic and policy calendar next week. The CBOE Volatility index, also known as Wall Street's fear gauge, dropped to a fresh post-pandemic record low. "What you are really seeing in the vol market is an unwillingness to engage," said David Bianco, Americas chief investment officer for asset manager DWS Group. "You've just got paralysis in investors." Investors were sitting on the sidelines ahead of inflation data and a Federal Reserve policy meeting...