--- title: G-Research tackles the biggest financial data challenges... description: G-Research, a quantitative finance research firm, shares testimonials from its machine learning engineers about switching from pandas to Polars for data... canonical: https://daily.dev/posts/g-research-tackles-the-biggest-financial-data-challenges-of-tomorrow-with-polars-wi1bjlfba twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: G-Research tackles the biggest financial data challenges of tomorrow with Polars | daily.dev og:description: G-Research, a quantitative finance research firm, shares testimonials from its machine learning engineers about switching from pandas to Polars for data... og:url: https://daily.dev/posts/g-research-tackles-the-biggest-financial-data-challenges-of-tomorrow-with-polars-wi1bjlfba og:image: https://api.daily.dev/og/posts/Wi1bJlfBa.png og:image:alt: G-Research tackles the biggest financial data challenges of tomorrow with Polars 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. # G-Research tackles the biggest financial data challenges of tomorrow with Polars **[Polars Blog](https://daily.dev/sources/polars)** · 3 min read · 0 upvotes · 0 comments ## Summary G-Research, a quantitative finance research firm, shares testimonials from its machine learning engineers about switching from pandas to Polars for data processing. Users report significant speedups, including a 150x improvement in one case and a 20x speedup in dequantization, along with lower memory usage and a cleaner API. The firm highlights Polars' multi-threaded joins, responsive bug fixes from the development team, and improved developer experience compared to pandas, noting the library is now used across multiple internal projects including a plotting library. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Should AI Developers Make the Switch from Polars to Pandas?](https://daily.dev/posts/should-ai-developers-make-the-switch-from-polars-to-pandas--3mrkktnhr) · Towards Data Science · 0 upvotes · 0 comments - [How to Use the Polars Library in Python for Data Analysis](https://daily.dev/posts/how-to-use-the-polars-library-in-python-for-data-analysis-stzxazhnq) · freeCodeCamp · 3 upvotes · 0 comments - [Polars vs pandas: What's the Difference? – Real Python](https://daily.dev/posts/polars-vs-pandas-what-s-the-difference-real-python-0uhjx2vub) · Real Python · 0 upvotes · 0 comments --- Tags: [#python](https://daily.dev/tags/python), [#fintech](https://daily.dev/tags/fintech), [#data-engineering](https://daily.dev/tags/data-engineering), [#pandas](https://daily.dev/tags/pandas), [#polars](https://daily.dev/tags/polars) [View this post on daily.dev](https://daily.dev/posts/g-research-tackles-the-biggest-financial-data-challenges-of-tomorrow-with-polars-wi1bjlfba) ```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":"G-Research tackles the biggest financial data challenges of tomorrow with Polars","url":"https://daily.dev/posts/g-research-tackles-the-biggest-financial-data-challenges-of-tomorrow-with-polars-wi1bjlfba","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/g-research-tackles-the-biggest-financial-data-challenges-of-tomorrow-with-polars-wi1bjlfba"},"datePublished":"2026-08-16T08:53:22.384Z","dateModified":"2026-08-16T08:55:14.011Z","description":"G-Research, a quantitative finance research firm, shares testimonials from its machine learning engineers about switching from pandas to Polars for data...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/5ab161a0018cabb5babf18ca1b09b92d?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/5ab161a0018cabb5babf18ca1b09b92d?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Polars Blog","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":"Polars Blog","logo":"https://media.daily.dev/image/upload/s--xo60W3UW--/c_limit,w_256/f_auto,q_auto/v1786870390/logos/polars?_a=BAMAMicg0","url":"https://daily.dev/sources/polars"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/g-research-tackles-the-biggest-financial-data-challenges-of-tomorrow-with-polars-wi1bjlfba","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"python,fintech,data-engineering,pandas,polars","timeRequired":"PT3M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Polars Blog","item":"https://daily.dev/sources/polars"},{"@type":"ListItem","position":3,"name":"G-Research tackles the biggest financial data challenges of tomorrow with Polars"}]} ```