(CNBC) — China's stocks were suspended from all trade on Thursday after the CSI300 tumbled more than 7 percent in early trade, triggering the market's circuit breaker for a second time this week.
That drop-kicked stock markets across Asia, which were already wallowing after a weaker open amid concerns over China's swooning currency and economic slowdown as well as falling oil prices.
On the mainland, the Shanghai Composite had tumbled 7.32 percent by at the time of the halt, while the Shenzhen Composite plummeted 8.34 percent. The CSI300, the benchmark index against which China's new circuit breakers are set, plunged 7.21 percent. If that index rises or falls 5 percent, the market halts all trade for 15 minutes. If it subsequently falls by 7 percent, trading is suspended for the rest of the day.
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