The Globe and Mail reports in its Thursday, May 4, edition that as the earnings season wraps up for North American gold miners, the biggest surprise has been outsized market reactions, with Kinross Gold ($5.08) surging the most in almost a year and Barrick Gold ($22.24) tumbling. A Bloomberg dispatch to The Globe reports that Barrick lost 11 per cent on April 25 in more than double average trading volume after missing analysts' estimates for only the second time in seven quarters. The last time Barrick had such a sizable earnings disappointment, in the first first quarter of 2015, its shares rose the next day in average volume. On Wednesday, Kinross soared as much as 17 per cent in heavy volume on a one-cent earnings beat, while fellow Toronto-based miner Agnico Eagle Mines ($63.50) jumped 11 per cent on April 28, the day after its street-beating results. Agnico Eagle edged out Kinross for the biggest beat over analysts expectations in percentage terms -- 189 per cent higher than estimates. There is no clear reason for the dramatic moves, although some speculate it could be skewed by exchange-traded-fund activity in a market in which volume had slipped over the past year.