How big can the largest tech companies get? How completely can they come to dominate the economy? The “big five” — Apple, Alphabet, Microsoft, Facebook and Amazon — now have a combined valuation of over $3.3 trillion, and make up more than 40 percent of the value of the Nasdaq 100 index. As the digital economy continues to grow faster …

Bloomberg The dollar gained and US stocks rose after two down weeks as Congress takes a holiday break from tax talks and the closely watched Alabama senate election nears. The Standard & Poor’s 500 Index opened slightly higher at the start of a truncated Thanksgiving week as investors gauge whether there are sufficient drivers to continue the march to historic …

Reuters Most stock markets in the Middle East fell again on Monday, dampened by geopolitics, although Abu Dhabi was supported by plans for an initial public offer of shares by the distribution unit of Abu Dhabi National Oil Co (ADNOC). Some fund managers think there may be little downside left for Gulf markets now that valuations are no longer high, …