13Radar

Hi HN,We’re a small team working on 13Radar.com, which we launched about two weeks ago after 4 months of development. I’m the founder, and together with the team we’re building a platform that tracks hedge fund portfolios in real-time based on SEC Form 13F filings.AI has been a major helper in our workflow. For a single webpage, we often consult multiple AI systems in parallel, generating different versions and comparing them side by side before deciding on the final design or implementation. More than 60% of the research, design, and coding involved AI assistance. For UI design we used Readdy, which gave us a smooth design experience. We experimented with Google Gemini and ChatGPT for research and prototyping, while most of the coding was done with Claude Code (Trae). On the front-end, we started with Bootstrap but later switched to TailwindCSS for a lighter, more responsive framework.Features so far:Real-time tracking of hedge fund holdings from SEC 13F filingsPortfolio changes per quarter (new positions, increases, reductions, exits)Sector-level insights and trend analysisHistorical tracking and backtesting toolsNext steps:Implementing pricing and subscription featuresAdding email notifications and report exportExpanding analytics with insider transaction dataContinuing to refine usability and performanceWe’d love feedback from the community:Does this solve a real pain point for investors/researchersAny thoughts on improving positioning or usabilitySuggestions for features that would make this more usefulThanks for reading — and if you’re curious, feel free to check out the site and let us know what you think.