Market 10 things you need to know before the opening bell Updated : October 25, 2018 07:53 AM IST Japan's Nikkei slumped more than 3 percent to hit a six-month trough. Tokyo's Topix index tumbled 3 percent, evaporating $155 billion in market value in the first 15 minutes of trading. In oil, WTI has fallen nearly 10 percent so far this month, while Brent is down nearly 9 percent. The Indian rupee closed higher by 41 paise to 73.15 against the US dollar on Wednesday. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.