Here are all of Amazon’s acquisitions before Whole Foods

Amazon today said it would make a bid to acquire Whole Foods for $13.7 billion, making it the largest acquisition for the company by far.

The next-closest acquisition in price is $1.2 billion for Zappos, which happened all the way back in 2009. Since then it’s made a few big-ticket purchases like Twitch (around $1 billion) and Kiva Systems (a bunch of robots for around $775 million), but each one still pales in comparison to the bid it made today. And probably for good reason — Amazon is buying a wildly complex operation of grocery stores and logistical operations that keep those up and running.

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Today’s bid for Whole Foods pits Amazon against Walmart and vice versa. Walmart recently acquired online retailer Jet. The company also said it would acquire Bonobos for $310 million this morning. But Amazon’s huge purchase — larger by a mile than any it’s done before — sent grocery stocks across the board into a sharp decline. It may just go to show how serious Amazon is about getting into grocery delivery and potentially brick-and-mortar operations if it’s willing to make an acquisition with a wildly high price tag compared to anything it’s done before.