In recent months, authorities have been keeping the currency, the yuan, relatively stable versus the dollar, while cracking down on leverage in the financial sector. The performance of China’s A-shares has been lackluster this year, weighed down by concerns that the country’s economic growth might have peaked. China’s economy, the world’s second largest, decelerated to a 6.7% growth rate in 2016—its slowest pace in 26 years.