The Stainless Monthly Metals Index (MMI) increased by 7.0% for this month’s reading, as the ATI strike entered its seventh week this week. ATI strike continuesIn late March, the United Steelworkers union announced a strike at nine Allegheny Technologies Inc. (ATI) facilities. Meanwhile, late last month, ATI reported its first-quarter financial results. Meanwhile, the ATI strike has put further pressure on NAS and Outokumpu to supply the market. The LME nickel price proceeded to trade sideways through March and the first three weeks of April.