Augusto César Rodrigues

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Augusto César Rodrigues

Augusto César Rodrigues

@augustocsr77

Sócio Mint Capital | CGA | Advogado | LL.M. Columbia Law

Katılım Ocak 2018
197 Takip Edilen526 Takipçiler
Augusto César Rodrigues
Augusto César Rodrigues@augustocsr77·
Concordo, mas entender a gestão indexada tem um elemento de “antinatural”. Explico. Comecei com um clube de investimento, 4 amigos. Doutrinei os meus amigos, literalmente dando aula e explicando os backtests pra eles. Comprei o Little Book do Greenblatt pra todos de presente. Um belo dia, depois de achar que o pessoal tinha entendido, um desses meus amigos me liga e me pergunta: “O que vc acha da CSN?”🤦🏻‍♂️
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Pedro Mota, CFA, CAIA
Pedro Mota, CFA, CAIA@PedroLulaMota·
Uma das coisas mais legais de começar a ter uma visão de investimentos indexados (sim, indexados, não é passivo) em seu portfólio é que você se liberta da necessidade de ter opinião sobre tudo e de achar que os preços estão certos ou errados.
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Pedro Chermont
Pedro Chermont@PedroChermont·
Esse tweet me inspirou a acelerar o que já vínhamos construindo na Leblon Equities. Relatórios da CVM, earnings, reports de sell-side — tudo indexado por IA que compila por empresa e setor. Os outputs alimentam novos relatórios, que melhoram os modelos. Se o Karpathy — um dos maiores nomes de AI do mundo — diz que esse é o caminho, a gente segue tentando.
Andrej Karpathy@karpathy

LLM Knowledge Bases Something I'm finding very useful recently: using LLMs to build personal knowledge bases for various topics of research interest. In this way, a large fraction of my recent token throughput is going less into manipulating code, and more into manipulating knowledge (stored as markdown and images). The latest LLMs are quite good at it. So: Data ingest: I index source documents (articles, papers, repos, datasets, images, etc.) into a raw/ directory, then I use an LLM to incrementally "compile" a wiki, which is just a collection of .md files in a directory structure. The wiki includes summaries of all the data in raw/, backlinks, and then it categorizes data into concepts, writes articles for them, and links them all. To convert web articles into .md files I like to use the Obsidian Web Clipper extension, and then I also use a hotkey to download all the related images to local so that my LLM can easily reference them. IDE: I use Obsidian as the IDE "frontend" where I can view the raw data, the the compiled wiki, and the derived visualizations. Important to note that the LLM writes and maintains all of the data of the wiki, I rarely touch it directly. I've played with a few Obsidian plugins to render and view data in other ways (e.g. Marp for slides). Q&A: Where things get interesting is that once your wiki is big enough (e.g. mine on some recent research is ~100 articles and ~400K words), you can ask your LLM agent all kinds of complex questions against the wiki, and it will go off, research the answers, etc. I thought I had to reach for fancy RAG, but the LLM has been pretty good about auto-maintaining index files and brief summaries of all the documents and it reads all the important related data fairly easily at this ~small scale. Output: Instead of getting answers in text/terminal, I like to have it render markdown files for me, or slide shows (Marp format), or matplotlib images, all of which I then view again in Obsidian. You can imagine many other visual output formats depending on the query. Often, I end up "filing" the outputs back into the wiki to enhance it for further queries. So my own explorations and queries always "add up" in the knowledge base. Linting: I've run some LLM "health checks" over the wiki to e.g. find inconsistent data, impute missing data (with web searchers), find interesting connections for new article candidates, etc., to incrementally clean up the wiki and enhance its overall data integrity. The LLMs are quite good at suggesting further questions to ask and look into. Extra tools: I find myself developing additional tools to process the data, e.g. I vibe coded a small and naive search engine over the wiki, which I both use directly (in a web ui), but more often I want to hand it off to an LLM via CLI as a tool for larger queries. Further explorations: As the repo grows, the natural desire is to also think about synthetic data generation + finetuning to have your LLM "know" the data in its weights instead of just context windows. TLDR: raw data from a given number of sources is collected, then compiled by an LLM into a .md wiki, then operated on by various CLIs by the LLM to do Q&A and to incrementally enhance the wiki, and all of it viewable in Obsidian. You rarely ever write or edit the wiki manually, it's the domain of the LLM. I think there is room here for an incredible new product instead of a hacky collection of scripts.

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Mint Equities
Mint Equities@MintEquitiesBR·
Como as massas se comportam no mercado? Em que condições Nelson Rodrigues e sua famosa frase de que toda unanimidade é burra estão certos? open.substack.com/pub/mintequiti…
Mint Equities tweet media
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Augusto César Rodrigues
Augusto César Rodrigues@augustocsr77·
@Greenbackd Funny how we’re paying more attention to copper now and “Escondida” literally means “hidden” in Spanish.
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Tobias Carlisle
Tobias Carlisle@Greenbackd·
Copper is up over the last decade but trading at an almost four-decade relative low against hard money gold. Chile's Escondida mine in the Atacama desert is the world's biggest copper mine. The world needs eight new Escondidas by 2030.
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Darren 🥚🐣🕊️
Darren 🥚🐣🕊️@ReformedTrader·
17/ "The search for alpha doesn’t have to mean chasing increasingly exotic signals in increasingly crowded corners of markets. " “Incredible structural alpha” comes from the disciplined application of things sophisticated investors already know." morningstar.com/financial-advi…
Darren 🥚🐣🕊️ tweet media
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Augusto César Rodrigues
Augusto César Rodrigues@augustocsr77·
@PedroChermont Concordo 100%. Agora, acho que tem muita gente que simplesmente não parou para olhar IA direito ainda. Por incrível que pareça, falei com um amigo, um advogado top de uns 50 anos, que fez uma tradução para o inglês “na unha”. 😳IA teria feito em segundos.
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Pedro Chermont
Pedro Chermont@PedroChermont·
100% concordo. E vou além: o profissional do futuro não é o que sabe programar — é o que sabe pensar, perguntar e direcionar. A barreira entre ter uma ideia e executá-la nunca foi tão fina. Isso muda tudo — em tech, em finanças, em qualquer setor.
CG@cgtwts

Anthropic CEO: “In the next 3 to 6 months, AI will write 90% of the code, and within 12 months, nearly all code may be generated by AI.” the job isn’t coding anymore, it’s telling machines what to build.

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Morales
Morales@Quant_Morales·
@augustocsr77 The coaching sessions had an effect on you Augusto!!😂
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Morales
Morales@Quant_Morales·
1 complex megamodel that tries to capture everything? Or 10 simple, robust models combined together? Drop your answer below. I'll share what I found (with data) tomorrow. 🤖 = megamodel 🤖🤖🤖 = multiple simple models
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Augusto César Rodrigues
Augusto César Rodrigues@augustocsr77·
@DellAnnaLuca My impression is that we should have an army of skills in Claude. Many times, I have seen Claude using skills to respond my prompts.
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Luca Dellanna
Luca Dellanna@DellAnnaLuca·
I used to believe: - skills (in the context of Claude) are to automate repeated processes. I now believe: - skills are worth creating for even one-off prompts, when the output benefits from multi-step reasoning (eg adversarial reviews, iterate-until-good-enough loops, etc)
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Cassio Beldi
Cassio Beldi@cassiobeldi·
Liderando Aprendizagem publicado agora no Mint Education Notes. O que diretores e coordenadores podem aprender com o curso de Harvard sobre alinhar sistemas, cultura e desenvolvimento docente para melhorar a aprendizagem. mintedu.substack.com/p/liderando-a-…
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Augusto César Rodrigues
Augusto César Rodrigues@augustocsr77·
@renatamend3 Claude Pro, pra usar coisas como projects e skills. Prefiro ter “um estagiário bom” a ter um monte de estagiários mais ou menos.
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Renata Mendonça
Renata Mendonça@renatamend3·
Alguém usa adapta? Estão gostando?
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Morales
Morales@Quant_Morales·
I just built a custom Skill for Claude that knows the entire Portfolio123 platform. Every formula. Every function. The full API. Ranking systems, universes, screens, all of it. You can now ask Claude to write P123 formulas, debug your ranking nodes, build screens from scratch, or pull data through the API with Python. It's like having a P123 expert available 24/7 inside your chat. I'm giving it away for free. To get it: → Like + Repost this post → Follow me → DM me "P123 Skill" I'll send you the full pack.
Morales tweet media
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Morales
Morales@Quant_Morales·
In your RANKING SYSTEM: Type I error = Your ranking penalizes a stock that was actually good. Example: You heavily weight P/E ratio. A high-growth company with temporarily elevated P/E gets ranked at the bottom. But it was about to deliver massive earnings growth. Type II error = Your ranking rewards a stock that was actually bad. Example: A company screens as "cheap" on P/B, but book value is inflated by goodwill from terrible acquisitions. Your system says "buy." Reality says "value trap."
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Morales
Morales@Quant_Morales·
Your backtest looks incredible. But what if you're filtering OUT your best stocks? Or letting garbage IN? Type I and Type II errors aren't just a stats textbook thing. They're silently destroying your factor strategies. Here's how 🧵👇
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Cassio Beldi
Cassio Beldi@cassiobeldi·
Harvard confirmou o que muitos professores já sentem: não é o salário que mais explica por que eles ficam, e sim relações de apoio e uma cultura escolar forte. mintedu.substack.com/p/por-que-os-p…
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Kurtis The Quant
Kurtis The Quant@Quant_Kurtis·
Well I tried but Claude saw right through me.
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