The ruble weakened, following the biggest drop in more than four months, after Citigroup Inc. said the currency will remain under pressure until oil ends its declines. Russia’s currency fell 0.8 percent to 67.4010 against the dollar by 3:16 p.m. in Moscow after strengthening as much as 0.9 percent. The ruble tumbled 3.9 percent on Tuesday as Brent crude slid the most since May 2011. The currency led the declines among emerging markets on Wednesday. Brent in Rubles Drops “The currency, and more broadly Russian assets, will find a bottom only when the market somehow reaches the conclusion that the oil prices have no further room to fall,” Ivan Tchakarov, a Moscow-based economist at Citigroup, said by e-mail. “I doubt the market has come even close to thinking that.” The ruble price of Brent dropped to 3,305, below the average of the past 12 months, as oil extended its […]