Yǒu le Hù-Gǎng Tōng, Xiānggǎng de tóuzīzhě yě néng zhíjiē mǎi Shànghǎi de gǔpiào.
With the Shanghai Connect, investors in Hong Kong can buy Shanghai shares directly too.
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usage
The name strings together the short names 沪 (Shanghai) and 港 (Hong Kong) with 通 "link". It opened in November 2014; 深港通 followed for Shenzhen in 2016, and together they opened Hong Kong shares (港股) to mainland investors.