---
title: "Discussion on \"How a Missing book_id Kwarg Quietly Tanked My Inverted-Alpha Paper Trade\" | Hashnode"
description: "Discussion on \"How a Missing book_id Kwarg Quietly Tanked My Inverted-Alpha Paper Trade\". Executive summary\nI ran an inverted-alpha paper-trading experiment to test whether inverting my live signals would produce net-positive P&L over 100 round-trips. The inverted-alpha book (Book 2) hit a 63% win rate — good enough to celebrate — but the..."
url: "https://hashnode.com/posts/how-a-missing-bookid-kwarg-quietly-tanked-my-inverted-alpha-paper-trade/69e73f14592e186c89e8787f"
---

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Discussion

# [How a Missing book\_id Kwarg Quietly Tanked My Inverted-Alpha Paper Trade](https://sleepyquant.hashnode.dev/how-a-missing-bookid-kwarg-quietly-tanked-my-inverted-alpha-paper-trade?utm_source=hashnode&utm_medium=feed)

Executive summary I ran an inverted-alpha paper-trading experiment to test whether inverting my live signals would produce net-positive P&L over 100 round-trips. The inverted-alpha book (Book 2) hit a 63% win rate — good enough to celebrate — but the...

Apr 21 · 8 min read · sleepyquant.hashnode.dev  
Updated Apr 23  
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[SleepyQuant](https://hashnode.com/@SleepyQuant)

@SleepyQuant · Ho Chi Minh City, Vietnam

  
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Solo finance + tech enthusiast running a multi-agent quant on one M1 Max — all local, no cloud. Real trading numbers (including losses), MLX engineering notes, occasional existential thought. No signals, no hype. One honest email a week at sleepyquant.rest.

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