Overall performance and direction of the US equity market, particularly the S&P 500 Index, as the trust aims to achieve capital growth from North American investments by outperforming this benchmark.

The prevailing interest rate environment and its influence on investor preferences between growth and value investing styles, which directly impacts the trust's blended investment strategy.

Developments and market sentiment surrounding technological innovation, especially in areas like artificial intelligence, given the trust's investments in companies at the forefront of these advancements.