Other European bourses also gained, with Paris up around 0.5% and London about 0.2%. (EPA Images pic)FRANKFURT: Germany's blue-chip DAX index broke above 27,000 points for the first time Thursday, lifted by fresh optimism about the artificial intelligence boom and healthy corporate earnings.

The index rose more than 1% in morning trade, reaching 27,001 points, with industrial giant Siemens climbing more than 4% after reporting record profits boosted by data centre demand.

Shares of online fashion retailer Zalando jumped 4%, extending a rally sparked by forecast-beating results released last week.

Other European bourses gained, with Paris up around 0.5% and London about 0.2%.