# Bayeslab

> Public investment research and portfolio letters.

## Index

- [Cheng's Investment Letter](https://bayeslab.xyz/letters): public letter archive.

## Portfolio letters

- [2026 H1 Portfolio Review](https://bayeslab.xyz/reports/2026-h1.md): AI-readable Markdown version. Human page: https://bayeslab.xyz/reports/2026-h1. PDF: https://bayeslab.xyz/reports/2026-h1.pdf.
- [2026 上半年组合回顾](https://bayeslab.xyz/reports/2026-h1/zh.md): 中文 Markdown 版本。网页版本：https://bayeslab.xyz/reports/2026-h1/zh。PDF：https://bayeslab.xyz/reports/2026-h1/zh.pdf。