Quantitative Research

A-H Premium Weekly (Jun 19th): China Longyuan, China Coal, Remegen, Yangtze Optical Fibre And-H

18 Jun 2026 By Ke Yan, CFA
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Abstract: We analyzed A-H premium changes across 185 dual-listed China stocks for the week ending June 19th, with the average A-H premium at 80.2%, up 3.7ppt week-on-week and 7.7ppt over the past four weeks. Premiums expanded in 115 stocks and contracted in 70, led by gains in Utilities (+10.8ppt) and Information Technology (+8.3ppt), while Energy (-2.6ppt) and Real Estate (-5.8ppt) saw the largest declines. Among top movers, China Longyuan surged 24.2ppt to a 52-week high A-H premium of 260.5%, and Yangtze Optical Fibre rose 27.5ppt to 149.8%. On the downside, China Coal fell 10.9ppt to 42.3% (z-score -2.73), and Remegen reached a 52-week high after expanding 16.5ppt to 92.9%.

REMEGEN (9995 HK) CHINA LONGYUAN (916 HK) YANGTZE OPTICAL FIBRE AND-H (6869 HK) CHINA COAL (1898 HK)

Highlighted Stocks

REMEGEN, CHINA LONGYUAN, YANGTZE OPTICAL FIBRE AND-H, CHINA COAL

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