Trading on China’s new Nasdaq-style stock market began today, with 25 tech companies listed on the Science and Technology Innovation Board, operated by the Shanghai Stock Market. Called the STAR Market, the board is an initiative by the government to encourage more Chinese tech companies to list domestically by addressing concerns about governance.

Traders cautioned that initial trading may be volatile as investors buy and trade stocks, however, and that warning was borne out today with trading by several companies paused after a surge of buying triggered their circuit breakers, or measures put into place that temporarily halt buying and selling to prevent stock crashes.

Plans for the STAR Market were announced in November as part of the Chinese government’s efforts to launch capital market reforms and make listing in mainland China more appealing to tech companies by easing profitability requirements. Some of the highest-profile Chinese tech IPOs, including Alibaba, Tencent, Xiaomi, JD.com and Pinduoduo, have taken place in New York City or Hong Kong, and the STAR Market may encourage more local stock debuts and investment — a goal that holds especially high stakes as China’s trade war with the U.S. continues.

But CNBC notes that the success of the STAR Market is far from a sure thing, since China has launched two other equity markets (the ChiNext in 2009 and the New Third Board in 2013) that still receive far less attention than its two primary stock exchanges in Shanghai and Shenzhen.