About 50 of Britain's biggest companies will sign a letter supporting the prime minister.
Most Asian markets tacked on gains on Thursday despite mostly poor economic data, as investors started to worry about missing a bargain.
Asia traded broadly higher on Tuesday, extending Monday's rally, but experts were not convinced it was the end of the volatility.
Japanese shares surged, after last week's sharp sell-off, despite weak Q4 GDP. But Chinese stocks lost ground after its markets re-opened from a week-long holiday.
Markets in Asia dropped on Friday, with Japan's Nikkei tumbling, after a sell-off on Wall Street fueled by volatile oil and worries over bank earnings.
Asian markets closed mixed on Thursday as investors digested remarks from Federal Reserve Chair Janet Yellen and oil remained volatile.
Japan's NIkkei 225 retraced losses of as much as 1.5 percent in afternoon trade to close 184.71 points, or 1.10 percent, higher.
Asian markets came under pressure Friday, closing mixed despite Wall Street's positive finish overnight, as a newly weaker dollar brought fresh concerns.
Most Asian markets closed up on Thursday, following a mostly higher finish on Wall Street overnight amid an oil price surge.
Asia markets closed mostly lower on Tuesday, weighed by declines in the energy sector as oil prices continued to tumble.
Standard & Poor's lowered the credit rating of BHP and put it on negative watch due challenging market conditions for commodities.
Asia markets closed mixed, with indexes in Australia, Japan and Korea extending Friday's gains on the back of the BOJ's surprise rate move.
Asian markets climbed after Japan shares took a roller-coaster ride in the immediate aftermath of the BOJ decision to adopt negative interest rates.
Asia markets were mixed, but largely trimmed earlier losses, despite Wall Street's fall after the Fed appeared to temper its expectations for U.S. growth.
Asian markets advanced Monday, continuing to recover from the global rout that hammered stocks in the first few weeks of 2016.
Asian markets bounced Friday, tracking a rally in European and U.S. markets, getting a boost from an uptick in oil prices and comments from the ECB.
Asia markets lost early gains and slid into negative territory, following another Wall Street selloff on concerns over global growth, China and oil.
Asian stocks tumbled Wednesday, with Japan's Nikkei entering the bear market, as global sentiment remains low on concerns over economic growth, China, and low oil prices.
Asian equities bounced back in afternoon trade after a mixed, but volatile reaction to the slew of data released by Beijing.
Markets in Asia closed mixed Monday, on the back of another Wall Street sell-off Friday, with Australia and Japan near bear market territory.