The phrase "big stake" means having a lot or a significant amount of something at risk or at stake in a particular situation.
Sentences with «big stake»
One for bond management advice at his bank, and management of two balanced funds, and another to analyze four insurance companies that he owns big stakes in to get a second opinion. (alephblog.com)
They're quiet on how big the investment was and how big a stake Epic gave away. (shacknews.com)