It seems the margins are high when you get into the fast fashion game, at least, for Zara. The retailer's parent company, Inditex, recently surpassed previous valuations, making the company worth €100 billion, or roughly $109 billion. Yes, that's billion, with a "B."

Announced Wednesday, Inditex's stock climbed up by 36 percent in the past year, making over €32 a share. Not only does this make Inditex the most valuable company in its native Spain, but also values the company well above other apparel giants like Nike and H&M, who are valued at roughly $86 billion, and $59 billion respectively.

This development explains why company founder, Amancio Ortega, is the second richest man in the world; second only to (you guessed it) Microsoft's Bill Gates. Ortega is currently estimated to have a personal wealth of nearly $73 billion.

While Zara may be the perfect place to grab a reasonably priced, last-minute (and possibly knocked-off) outfit, it also seems like the best place to score a profit too.