After losing ground again yesterday, the Commonwealth Bank of Australia (ASX: CBA) share price is now down almost 14% in the last month. 

CBA shares closed yesterday at $151.64. 

It is now down more than 20% from its 12-month high of more than $191 per share back in June. 

Despite this fall, CBA is the most expensive bank in the world. It still represents almost 10% of the S&P/ASX 200 Index (ASX: XJO). 

Because of its dominant market share, it impacts shareholders who have direct exposure and those who don’t necessarily own individual shares in the bank. 

For example, many ASX ETFs are heavily weighted towards CBA shares. 

Arian Neiron, CEO & Managing Director – Asia Pacific, VanEck, has…