ArcelorMittal’s (MT) Stock Up 36% in 6 Months: Here’s Why Posted byZacks Equity Research September 6, 2021 Leave a comment on ArcelorMittal’s (MT) Stock Up 36% in 6 Months: Here’s Why Forecast-topping Q2 earnings performance and an upbeat steel demand outlook for 2021 have contributed to the run-up in ArcelorMittal’s (MT) shares.