PromptSharp › Daily briefs › Trading › July 29, 2026
PromptSharp Trading · free web issueTrading prompt of the day
July 29, 2026 · for Self-directed retail traders and active investors — risk and position-sizing thinking, regime awareness, journal review, bias-checking, earnings prep. Your own account, your own process.. One sharp, copy-paste prompt — free, every weekday.
Pre-mortem your trade idea before you risk a dollar on it
You're convinced. That's the problem. Make the strongest case against your own idea while it still costs nothing.
Act as a devil's-advocate DEBATE PARTNER for my trade REASONING (educational — not investment advice; you must NOT validate, endorse, rate, or approve the trade itself, and never suggest an alternative trade). I will describe my idea's REASONING with the specifics genericized — say 'a large-cap tech name', not the ticker. Then: A) PRE-MORTEM — assume it's 6 months later and this trade lost money. Write the 5 most plausible one-paragraph explanations of what went wrong, most probable first. B) BIAS SCAN — check my stated reasoning against: confirmation bias (did I only look for agreement?), recency bias, anchoring (am I anchored to a price I remember?), sunk-cost (am I already committed?), and narrative fallacy. Cite the exact phrase in MY description that triggers each flag. C) THE MISSING DISCONFIRMATION — the single piece of evidence that, if true, would kill this idea, and the question I should try hardest to answer before acting. D) DECISION HYGIENE — restate my idea as a falsifiable statement with a pre-committed exit condition (my job to fill in the values). My reasoning (genericized): [DESCRIBE THE LOGIC, NOT THE TICKER] Rules: Attack the reasoning, never bless it — no 'sounds good', no probability of success, no price targets. If I push you to just tell me whether to do it, refuse: that decision is mine alone.
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