Traders work on the floor at the New York Stock Exchange. Photograph: Brendan McDermid/Reuters

After weeks of indecision, the S&P 500 staged a breakout last week following rising optimism on the outlook for US-China trade talks. Since plung(...)

Analysts tend to get it wrong when companies are strongly outperforming or underperforming relative to others in their sector, according to a 2013 study. Photograph: Brendan McDermid/Reuters

Earnings season is now under way in the United States, so market analysts will be kept busy in the coming weeks, chopping and changing their earnings (...)

Bad weather has been shown to affect people’s moods, driving “fatigue, anxiety, depression and limited attention to work”. Photograph: iStock/Getty

Sunny weather fosters a sunny mood, so this summer’s unexpectedly fine weather has no doubt boosted people’s spirits. New research suggests it may eve(...)