The slight decrease in the price target by BMO Capital might have a neutral to slightly negative short-term impact on Royal Gold's stock price. The maintenance of an Outperform rating suggests a positive outlook on the company's fundamentals, which could balance out the minor adjustment in the price target. The analyst's confidence in the stock remains high, indicating that the reduction in the price target might be due to external factors or minor adjustments in valuation models rather than a change in the company's intrinsic value.