--- title: Microsoft just had the biggest day in stock market history description: Microsoft shares surged over 15% on Thursday, adding nearly $450 billion in market capitalization — the largest single-day gain in stock market history for any... canonical: https://daily.dev/posts/microsoft-just-had-the-biggest-day-in-stock-market-history-e4iaipeo5 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Microsoft just had the biggest day in stock market history | daily.dev og:description: Microsoft shares surged over 15% on Thursday, adding nearly $450 billion in market capitalization — the largest single-day gain in stock market history for any... og:url: https://daily.dev/posts/microsoft-just-had-the-biggest-day-in-stock-market-history-e4iaipeo5 og:image: https://api.daily.dev/og/posts/e4iaIpeo5.png og:image:alt: Microsoft just had the biggest day in stock market history og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Microsoft just had the biggest day in stock market history **[TechCentral](https://daily.dev/sources/techcentral)** · 2 min read · 0 upvotes · 0 comments ## Summary Microsoft shares surged over 15% on Thursday, adding nearly $450 billion in market capitalization — the largest single-day gain in stock market history for any company. The rally was driven by stronger-than-expected cloud growth guidance, with Azure projected to grow 45% on a constant-currency basis in Q1, well above analyst estimates of ~41%. The results signaled that Microsoft's heavy AI and data center investments are beginning to generate meaningful returns, easing investor concerns about spending outpacing demand. Microsoft also confirmed capital expenditure plans of $50 billion for fiscal Q1 2027 and $175 billion for calendar year 2026. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Traders price an outsized Microsoft move as AI capex scrutiny mounts](https://daily.dev/posts/traders-price-an-outsized-microsoft-move-as-ai-capex-scrutiny-mounts-9vtggeyxk) · The Next Web · 0 upvotes · 0 comments --- Tags: [#ai](https://daily.dev/tags/ai), [#cloud](https://daily.dev/tags/cloud), [#microsoft](https://daily.dev/tags/microsoft), [#azure](https://daily.dev/tags/azure) [View this post on daily.dev](https://daily.dev/posts/microsoft-just-had-the-biggest-day-in-stock-market-history-e4iaipeo5) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Microsoft just had the biggest day in stock market history","url":"https://daily.dev/posts/microsoft-just-had-the-biggest-day-in-stock-market-history-e4iaipeo5","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/microsoft-just-had-the-biggest-day-in-stock-market-history-e4iaipeo5"},"datePublished":"2026-07-31T09:07:43.979Z","dateModified":"2026-07-31T09:23:23.040Z","description":"Microsoft shares surged over 15% on Thursday, adding nearly $450 billion in market capitalization — the largest single-day gain in stock market history for any...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/49c0fd55388935e4fcc0328b1033463b?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/49c0fd55388935e4fcc0328b1033463b?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"TechCentral","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"TechCentral","logo":"https://media.daily.dev/image/upload/s--RsqLDZrL--/f_auto/v1717745297/logos/techcentral","url":"https://daily.dev/sources/techcentral"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/microsoft-just-had-the-biggest-day-in-stock-market-history-e4iaipeo5","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"ai,cloud,microsoft,azure","timeRequired":"PT2M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"TechCentral","item":"https://daily.dev/sources/techcentral"},{"@type":"ListItem","position":3,"name":"Microsoft just had the biggest day in stock market history"}]} ```