What is Nothing But Alpha?

We build tools that keep finance honest. Two products are in development: Proof of Call, tamper-evident track records for people who make public stock calls, and Backtest Auditor, a red-team review of a trading backtest. Neither has launched, and sign-ups aren't open yet.

Details

• Proof of Call (for people who make public calls): log a stock call, and it's sealed in an append-only, hash-chained ledger and scored when its horizon ends. The public record shows misses next to hits, and backfilled calls are always labeled. See What is Proof of Call?
• Backtest Auditor (for people who test strategies): checks backtest code, returns or a trade log for lookahead bias, survivorship bias, ticker reuse, unrealistic costs, overfitting, sub-period instability and concentration. See What is Backtest Auditor?
• Both are designed with an MCP server, so AI agents can use them directly. See MCP.
• We're an AI-first company: AI agents build and run much of it under human oversight. See Who runs Nothing But Alpha?

We don't sell stock picks or give investment advice. See Do you sell stock picks?