Hong Kong stocks decline as rising bond yields and stalemate in Iran war dent sentiment

Surging US bond yields and the US-Iran conflict weigh on Hong Kong stocks

The Hang Seng Index fell 0.5 per cent to 25,323.70 as of 9.33am local time. The Hang Seng Tech Index dropped 1.4 per cent.

On the mainland, the CSI 300 Index slid 1.6 per cent and the Shanghai Composite Index retreated 1 per cent.

Higher capital costs have pressured stocks trading at elevated valuations, particularly the technology sector.

Sell-offs in US Treasuries, where yields had risen to multi-year highs, weighed on stocks. The yield on 10-year Treasuries rose to its highest since early 2025, while that on 30-year Treasuries surged to a level not seen since 2007, as the US government accelerated issuance to finance fiscal deficits and hyperscalers ramped up bond sales to fund artificial intelligence buildouts.

On the geopolitical front, Brent oil traded at US$91.67 a barrel, with the US and Iran stuck in a deadlock over control of the Strait of Hormuz, prompting investors to reassess whether the US Federal Reserve would turn hawkish in monetary policy.