The Globe and Mail reports in its Thursday edition that Wall Street may experience more mini-corrections based on history, but to meet investors' bullish expectations, stocks face higher earnings and interest-rate challenges in the second half of the year. A Reuters dispatch to The Globe says that U.S. exceptionalism is alive and well -- a strong economy, the artificial intelligence revolution and fat corporate profits -- which optimists say is reason enough to buy any dip. Investors are overwhelmingly positioned for that narrative to continue delivering this year, but Wall Street may have peaked too early. The S&P 500 Index retreated 5.5 per cent from its high of 5,264.85 points on March 28 to last Friday, a mini-correction lasting 22 days. It must be remembered that the March 28 peak was the culmination of an explosive 30-per-cent rally over the preceding five months, propelled by an even more frenzied surge in a handful of Big Tech stocks. So if the recent consolidation was down to profit-taking, there is plenty more profit to take. The combined market cap of the Magnificent Seven stocks just fell $1.1-trillion in six days to $12.9-trillion, but that is still up almost $3-trillion from Oct. 25 (all figures U.S.).