Pro-democracy protests in Hong Kong have disrupted business and hit share prices of luxury goods companies, ruining what is normally one of the busiest shopping weeks of the year.

The protests in Hong Kong, the biggest challenge to Beijing's leaders since the former British colony reverted to Chinese rule in 1997, coincide with China's "Golden Week" holiday, which runs until Tuesday. It is traditionally as important to luxury retailers in the region as Christmas or New Year's are in Western markets.

Analysts believe retail sales have taken a substantial hit in one of the world's key markets for luxury goods. Hong Kong accounts for about $9.7 billion of global luxury sales, or 4 percent of the worldwide total, according to estimates from Bernstein Research.