The Shanghai Composite Index fell 2.6% on Thursday to 2874.05, dipping beneath the low point reached during its summer crash and down 44% from a June peak, The Wall Street Journal reported. Regulators have resorted to a variety of tactics to try and prop up the value of mainland-listed shares, including extensive purchasing by state-owned entities, restrictions on stock sales and a disastrous circuit breaker introduced and quickly removed from the mainland stock market in the first week of 2016. Now those measures appear to have been in vain as shares flirt with entering a bear market. The benchmark Shanghai index had fallen to just above 2900 as of mid-morning on Thursday.