Log a pass 10 seconds, honest reasons only
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Differentiator Product
QL Ghost Book
The book of trades that never were. Every platform measures what you bought — nobody measures what you passed on, so your veto filters ("too expensive", "bad vibes", "chart looks ugly") run unaudited forever. Log each pass with the reason, and the Ghost Book replays the ghosts: which filter genuinely dodges losers, and which one has been quietly charging you alpha all year.
🔒 Your ledger lives in this browser — grading is stateless, nothing is stored
Verdict on your filters
| Veto reason | Verdict | Avg ghost | Dodge rate | n |
|---|
Ghost equity curve what the untaken book would have earned · 10% slots
How it grades mechanical, no hindsight
Each ghost is replayed from the first daily close on or after the day you passed, over a fixed horizon (default 30 days). A positive missed return is a REGRET — the ghost made money without you. Negative is a DODGED — the veto saved you. A veto reason earns SAVES when its matured ghosts average ≤ −1%, COSTS when they average ≥ +2%, and needs at least 5 matured ghosts to be judged at all. Shorts you passed on grade inverted — dodging a bad short counts too.
QL Ghost Book is diagnostic research, not investment advice. It grades the reasons you give it against subsequent prices; it cannot know position size you would have chosen, and it models no costs. Your ledger never leaves your browser except to be graded in memory.