The story
Reports say Rio's smelters would have closed under coal-fired electricity, and that Rio assured Bell Bay of jobs until 2031.
The story's tone is the average of its headlines' own scores. Each score rates how good or bad the news was for the company, from −10 (clearly bad) to +10 (clearly good). 0 is neutral, and anything beyond ±6 is strong and rare. It rates the coverage, not the share price.