India, Aug. 20 -- Global markets digested the announcements from U.S. Treasury about doubling long-term bond buyback operations. However, concerns about the inflationary impact from the potential liquidity boost weighed on sentiment. Mixed earnings upgrades from the corporate sector also impacted markets.

Wall Street Futures are trading slightly below the flatline. Major benchmarks in Europe are trading on a negative note. Earlier in the day, Asian markets had finished trading on a strong positive note.

The six-currency Dollar Index has edged down. Global bond yields rebounded after the plunge a day earlier. Thirty-year U.S. bond yields are trading near 5.23 percent versus the high of 5.337 percent recorded on Tuesday and the high of 5.29...