ASX-listed companies with offshore earnings have delivered Mirrabooka Investments a strong first-half return, with Breville, James Hardie Industries and Xero driving the listed investment company's result and defying below-trend growth in the domestic economy.

The small and mid-cap LIC maintained its fully franked interim dividend of 3.5¢ a share despite recording a fall in profit and revenue in the first-half of 2019-20, it said on Tuesday.