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Page One · Deals · Investments/Risk · IN04

DoorDash Signed the $17 Billion Instacart Deal at $65 a Share. Its Stock Fell on the Talks and Rose 5.6% on the Deal

About a decade ago, a baker's binder of orders she couldn't deliver gave Tony Xu an idea. Now his company is paying $17 billion for Instacart. The buyer's stock fell on the talks Monday and rose on the deal Thursday.

By Sean Anees Saifi · Capital Wealth · Published Friday, October 30, 2026 · Source: The Wall Street Journal, Friday, October 30, 2026, whose market figures are the Thursday, October 29 close (Page One)
Key Points
$17 billion
Deal value, DoorDash for Instacart, announced Oct. 29
$65
Per-share price, an 11% premium to Wednesday's close
5.6%
DoorDash's gain Thursday, to $179.00
$57.11
Instacart's close Thursday, under the $65 deal price
A delivery rider in a hooded jacket with an insulated food bag on his back cycles across a wet city street at dusk, car lights blurred ahead.
More than 80% of grocery shopping still happens in stores. DoorDash is paying $17 billion for a bigger piece of the rest.
In one line: DoorDash signed the $17 billion Instacart deal, and its stock rose 5.6% three days after falling on the talks.

Tony Xu was a Stanford business student, touring Bay Area shops with his future co-founders. A baker told them about a binder full of delivery orders. She had nobody to fill them. That was about a decade ago. On Thursday, Oct. 29 his company, DoorDash (DASH), agreed to buy Instacart for $17 billion. It's the biggest bet in DoorDash's 13-year history.

We wrote about this deal on Oct. 28, when it was still talks. The Journal first reported those talks on Monday, Oct. 26, and DoorDash's stock fell that day. On Thursday, with the deal signed, it rose 5.6% to $179.00. Instacart, whose corporate name is Maplebear (CART), slipped about 2% to $57.11. DoorDash put the price at $65 a share, paid in cash and stock. That's 11% more than Instacart's Wednesday close. It's about 26% more than its Oct. 22 close, before word of a sale got out.

DoorDash is now a $78 billion company with nine million “dashers.” It already delivers Macy's dresses, Costco paper towels and CVS cold medicine, the Journal's Heather Haddon reported. Instacart gives it a real seat in groceries, where it would compete with Walmart and Amazon. More than 80% of grocery shopping still happens in stores, so there's room to grow. There's also a catch. Both companies hold big shares of third-party grocery delivery, and regulators may look hard. Xu's answer is that the deal helps smaller grocers compete. “The biggest companies are eating more and more of the pie,” he said.

Same stock, two headlines, two directions

DoorDash's stock is still down around 20% this year. It looked at buying Instacart back in 2021 and passed, then struck a deal with Kroger in 2022. Its shares were priced at $102 for the December 2020 IPO and hit $182 on the first day. This week the same company lost ground on Monday's report and gained 5.6% on Thursday's signing, for the same $17 billion.

Our read

This is Investments/Risk · IN04 and Behavioral. We don't own DoorDash or Instacart in any model book. The lesson is in the trading. On Monday, the market seemed to worry the buyer was paying too much. On Thursday, it cheered the same buyer at about the same price. The headline number barely moved between the two days. The mood did. Instacart holders get a lesson too. The stock closed at $57.11 against a $65 deal value. Part of that gap likely reflects the DoorDash shares in the price, which move every day. Part of it is the regulators, who still have to sign off. A deal price is a promise, and a promise like this can take months to keep.

Here's where this touches your money. A total-market index fund likely holds a sliver of both companies already, so this deal needs no move from you. What it touches is your own habit with headlines. This week, open your brokerage app and look at your last five trades. Next to each one, write down whether a headline set it off. If a stock you own ever gets a buyout offer, compare its price with the offer first. A wide gap means the market sees risk in the deal. Bring that list to your next review and we'll talk through the pattern. You pick the umbrella before the sky turns, not after.

What It Means For Your Portfolio

Hold. Not held; trade the plan, not the headline

A stock fell on the talks and rose on the deal in the same week, which is why a plan beats a reaction to any headline.

General planning principles, not advice for anyone in particular. When a company you own gets a buyout offer, compare the market price with the offer. A wide gap can mean the market doubts the deal closes as written. Decide in advance whether you'd hold through the close or sell.

Headline trading cuts both ways. The same news moved the same stock in opposite directions in one week.

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