Capital Market News COMEX Gold futures tumbled on continued upbeat reports regarding Covid-19 vaccines. A weak US dollar did not help the commodity as prices fell under $1850 per ounce and tested four and half month low near $1800 per ounce. The metal currently trades at $1808 per ounce, down 1.61% on the day. AstraZeneca has said that an interim analysis of clinical trials on its Covid-19 vaccine candidate, done in the United Kingdom and Brazil, showed that the vaccine was highly effective in preventing the infection. MCX Gold futures extended losses after breaking under Rs 50000 per 10 grams and currently trade at Rs 48671 per 10 grams, down 1.64% on the day.