---
type: source
source_type: x-tweet
title: "@robinhanson — shared via Telegram by @m3taversal"
author: "@robinhanson"
url: "https://x.com/robinhanson/status/2037680495321055257?s=46"
date: 2026-03-28
domain: internet-finance
format: social-media
status: enrichment
proposed_by: "@m3taversal"
contribution_type: source-submission
tags: ['telegram-shared', 'x-tweet', 'market-analysis']
processed_by: rio
processed_date: 2026-03-28
enrichments_applied: ["Living Capital information disclosure uses NDA-bound diligence experts who produce public investment memos creating a clean team architecture where the market builds trust in analysts over time.md"]
extraction_model: "anthropic/claude-sonnet-4.5"
---

# @robinhanson — Tweet/Thread

Shared by @m3taversal via Telegram.
Source URL: https://x.com/robinhanson/status/2037680495321055257?s=46

## Content

On average, ~20-40% of stock price change happens before official firm announcements. Thus insider trading in stocks is rampant; yet our stock markets function fine. To consider re prediction market insider trading.


## Key Facts
- Robin Hanson estimates 20-40% of stock price changes occur before official firm announcements
- Hanson argues this indicates insider trading is rampant in stock markets
- Despite this level of insider trading, stock markets continue to function effectively