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Last week, shares of Zillow went down after reports of Amazon launching its own real estate referral service surfaced.

This week, it’s Blue Apron’s turn.

After The Sunday Times uncovered a new Amazon trademark that signals the company’s interest in its own meal-kit service, Blue Apron shares sunk more than 11 percent on Monday.

Blue Apron, a leader in the meal-kit delivery service industry, has seen shares drop by more than 30 percent since going public last month. It also sliced its initial share price by a third, just a few weeks after Amazon announced plans to acquire Whole Foods Market for $13.7 billion.

Blue Apron’s CEO said he wasn’t worried by Amazon’s move into physical grocery retail, but clearly it seems some shareholders think otherwise.

Amazon’s filed trademark included the phrase “We do the prep, you be the chef.”

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