Mainland stocks fell for the third day in a row due to concerns about rising inflation, the South China Morning Post reported. The Shanghai Composite Index fell 3.13% to 3,364.544 points, approaching the low reached on April 23 before the government announced a two-thirds cut in stamp duty. In cutting the stamp duty, Beijing said it would step in whenever the market hit 3,000. However, some have questioned what instruments the government would use to bail out the market in the short term. Domestic markets were also hurt as traders dropped brokerage shares over concerns that lower trading values would cut profits. The Shenzhen Composite Index closed down 2.90% to 1,021.57.