About r/SecurityAnalysis
A subreddit dedicated to discussing Security Analysis.
The community at a glance
r/SecurityAnalysis is a Subreddit for Investors with roughly 215K members. It has been around since 2010. It uses a forum format for communication.
Roughly 13K members have joined in the past year. Popular discussion topics include Looking For, Struggle, and Worst. Common discussion themes are News and Money Talk. Product recommendations often mention book, reading, and resource.
Community Topics
Community Features
This community has a forum
Subreddit Analysis
via GummySearchMember growth over time
All time (yearly)
- 2013: 3K members
- 2014: 3K members
- 2015: 3K members
- 2016: 6K members
- 2017: 8K members
- 2018: 13K members
- 2019: 25K members
- 2020: 43K members
- 2023: 86K members
- 2024: 8K members
- 2025: 5K members
- 2026: 12K members
Past year (monthly)
- Dec: 738 members
- Jan: 3K members
- Feb: 885 members
- Mar: 989 members
- Apr: 762 members
- May: 1K members
- Jun: 1K members
- Jul: 1K members
- Aug: 1K members
- Sep: 765 members
- Oct: 766 members
- Nov: 273 members
Themes
- News21 posts in the past month
- Anthropic's s1 is out. What surprised you?
- Bill Gates recently bought $1.58B of this trash company
- Reddit Inc: DCF valuation using Aswath Damodaran’s approach
#121NewsAnthropic's s1 is out. What surprised you? · Bill Gates recently bought $1.58B of this trash company · Reddit Inc: DCF valuation using Aswath Damodaran’s approach - Money Talk20 posts in the past month
- CoreWeave just paid $640 million in interest in a single quarter, up 139% in a year
- NFLX is now ~$71. At what point does this stop being a falling knife and start being a value stock?
- Alphabet made more from its investments than from Google. It sold almost none of them.
#220Money TalkCoreWeave just paid $640 million in interest in a single quarter, up 139% in a year · NFLX is now ~$71. At what point does this stop being a falling knife and start being a value stock? · Alphabet made more from its investments than from Google. It sold almost none of them. - Solution Requests3 posts in the past month
- Vibe Coded Financial Terminals - which one?
- Selling FDS when true FCF yield compressed below 6%. Starting VCISY and ADRNY at 12%+ true FCF yields with ECB independence as the macro thesis. Also: has anyone solved the IFRS XBRL tag mapping problem for European ADR analysis? Let me know.
- Medical Solutions: A Tiered Solution
#33Solution RequestsVibe Coded Financial Terminals - which one? · Selling FDS when true FCF yield compressed below 6%. Starting VCISY and ADRNY at 12%+ true FCF yields with ECB independence as the macro thesis. Also: has anyone solved the IFRS XBRL tag mapping problem for European ADR analysis? Let me know. · Medical Solutions: A Tiered Solution - Self-Promotion1 post in the past month
- Three weeks ago I posted a tool that reproduces Burry's stock-comp math. It's now a free toolkit, and strangers' criticism made it better. Update inside.
#41Self-PromotionThree weeks ago I posted a tool that reproduces Burry's stock-comp math. It's now a free toolkit, and strangers' criticism made it better. Update inside. - Opportunities1 post in the past month
- FICO: Part 1 - The Beginning of an Opportunity
#51OpportunitiesFICO: Part 1 - The Beginning of an Opportunity
Topics
- Looking For13 posts in the past month#113Looking For
- Struggle8 posts in the past month#28Struggle
- Worst8 posts in the past month#38Worst
- Ai8 posts in the past month
- What a Dollar of AI Datacenter Actually Earns
- What TSMC and ASML Told Us About the AI Build
- AI Bears Have the Right Numbers and the Wrong Names
#48AiWhat a Dollar of AI Datacenter Actually Earns · What TSMC and ASML Told Us About the AI Build · AI Bears Have the Right Numbers and the Wrong Names - 20262 posts in the past month
- 2026 Analysis Questions and Discussions Thread
- US wireless carriers after the SpaceX spectrum deal: thesis, bear case and invalidation conditions (AI-assisted analysis, as of 9 Oct 2026)
#5220262026 Analysis Questions and Discussions Thread · US wireless carriers after the SpaceX spectrum deal: thesis, bear case and invalidation conditions (AI-assisted analysis, as of 9 Oct 2026)
Flair
- Thesis16 posts in the past month
- Meta spent $31.1B in a quarter. Price per ad is still +12%
- Bill Gates recently bought $1.58B of this trash company
- Reddit Inc: DCF valuation using Aswath Damodaran’s approach
#116ThesisMeta spent $31.1B in a quarter. Price per ad is still +12% · Bill Gates recently bought $1.58B of this trash company · Reddit Inc: DCF valuation using Aswath Damodaran’s approach - Discussion12 posts in the past month
- CoreWeave just paid $640 million in interest in a single quarter, up 139% in a year
- Vibe Coded Financial Terminals - which one?
- I matched every guidance number in 15 large companies’ earnings releases since 2019 to what they reported. 110 worse-side misses, none mentioned again in any filing.
#212DiscussionCoreWeave just paid $640 million in interest in a single quarter, up 139% in a year · Vibe Coded Financial Terminals - which one? · I matched every guidance number in 15 large companies’ earnings releases since 2019 to what they reported. 110 worse-side misses, none mentioned again in any filing. - Commentary12 posts in the past month
- Morgan Stanley’s AI Guidebook & What If the Frontier Slows Down?
- Muse Is a Memory Story, The Market Traded It as a CPU Story
- What a Dollar of AI Datacenter Actually Earns
#312CommentaryMorgan Stanley’s AI Guidebook & What If the Frontier Slows Down? · Muse Is a Memory Story, The Market Traded It as a CPU Story · What a Dollar of AI Datacenter Actually Earns - Industry Report11 posts in the past month
- Bloomberg’s 7 Powers & Why the Terminal Dominates Financial Markets | The Terminalist
- The Two Trillion Dollar Bottleneck: AI & Energy
- Meta: Compute Is the Heart of the Business
#411Industry ReportBloomberg’s 7 Powers & Why the Terminal Dominates Financial Markets | The Terminalist · The Two Trillion Dollar Bottleneck: AI & Energy · Meta: Compute Is the Heart of the Business - Long Thesis9 posts in the past month
- NFLX is now ~$71. At what point does this stop being a falling knife and start being a value stock?
- For those who have the time
- I spent the summer on FICO reading every deep dive and sell side research. Here's where I think they all go wrong
#59Long ThesisNFLX is now ~$71. At what point does this stop being a falling knife and start being a value stock? · For those who have the time · I spent the summer on FICO reading every deep dive and sell side research. Here's where I think they all go wrong
Product recommendations
- book17 posts in the past month
- Best recent books about investing?
- Best book on .com bubble
- Best book or textbook on stock valuation?
#117bookBest recent books about investing? · Best book on .com bubble · Best book or textbook on stock valuation? - reading15 posts in the past month
- Recommended Reading on Energy (a reading list) - John Kemp
- Value Investors Club: Recommended Reading?
- I wrote a summary of everything I've learned from this group and the books recommended over the last few years
#215readingRecommended Reading on Energy (a reading list) - John Kemp · Value Investors Club: Recommended Reading? · I wrote a summary of everything I've learned from this group and the books recommended over the last few years - resource5 posts in the past month
- 2022 Analysis + Future Outlook – What are the best resources?
- Best research platform for retail / individual investors
- Best resource for learning to calculate net diluted shares outstanding?
#35resource2022 Analysis + Future Outlook – What are the best resources? · Best research platform for retail / individual investors · Best resource for learning to calculate net diluted shares outstanding? - broker3 posts in the past month
- Best US stock broker, non US citizen
- Best South African broker?
- What's the best brokers for Europe?
#43brokerBest US stock broker, non US citizen · Best South African broker? · What's the best brokers for Europe? - podcast2 posts in the past month
- Best investment podcasts?
- Any security analysis podcasts you recommend?
#52podcastBest investment podcasts? · Any security analysis podcasts you recommend?
Community Reviews
Frequently asked questions
- Who is r/SecurityAnalysis for?
- Best for Investors enthusiasts looking for a Reddit-based community with forum discussion.
- Is r/SecurityAnalysis free to join?
- This listing is not marked as paid-only. Access rules and any fees are decided by the community.
- How many members does r/SecurityAnalysis have?
- Roughly 215K members, based on figures reported by the community or its host. Member counts are approximate and change over time.
- What platform is r/SecurityAnalysis on?
- r/SecurityAnalysis runs on Reddit. Reddit communities (or "subreddits") are forum-based groups on the popular social news aggregation, web content rating, and discussion website Reddit. Reddit is commonly known as "the front page of the internet". Users submit content to the site such as links, text posts, and images, which are then voted up or down and discussed by other members. From investing Reddit communities, to professional ones, to ones just for laughs, you're likely to find a community for you on Reddit.
- What topics does r/SecurityAnalysis cover?
- On the Hive Index, r/SecurityAnalysis is organized under Investors.
- How do I join r/SecurityAnalysis?
- You can join r/SecurityAnalysis by clicking this link, or pressing the "Go to community" button above.
- What are the Investing communities like?
- Communities for investors covering stocks, real estate, options, and broader personal finance. Reddit has some of the most active investing communities on the internet, from value investing to dividend strategies, alongside Discord servers for trading signals and more niche investment approaches. Range of experience from total beginners to seasoned traders.
Monthly Stats
- 29
- Views /mo (+12%)
- 27
- Visitors /mo (+8%)
- 0
- Referrals /mo (-100%)
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