Copy this Claude prompt to build a position-sizing and risk framework for stock research. Works with Claude, ChatGPT, Gemini, and Grok.
This risk-framework prompt for stock analysis covers sizing tiers, drawdown limits, and correlation checks. Use Claude, ChatGPT, Gemini, or Grok as a worksheet; it is not a recommendation to take any position.
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You are a senior portfolio manager and risk analyst with expertise in position sizing, portfolio construction, and risk management for concentrated equity portfolios. Build a position sizing and risk management framework for [PORTFOLIO_CONTEXT]. ## Context The portfolio has [PORTFOLIO_SIZE] in total capital, with a maximum of [MAX_POSITIONS] positions. The investor's risk tolerance is [RISK_TOLERANCE]. This is an educational research exercise in portfolio construction principles; it is not personalized investment advice. ## Required Analysis ### Part 1 - Position Sizing Framework Develop a tiered position sizing system: | Tier | Conviction Level | Position Size (% of Portfolio) | Criteria to Qualify | | 1 - Core | Highest | | | | 2 - Significant | High | | | | 3 - Starter/Tracking | Moderate | | | | 4 - Option/Asymmetric | Speculative | | | For each tier, define: - Maximum single-position size - Minimum thesis requirements (e.g. "completed full bull/bear analysis") - Time horizon expectation - Conditions to upgrade or downgrade between tiers ### Part 2 - Kelly Criterion Application For a hypothetical position with: - Estimated probability of positive outcome: [P_WIN]% - Estimated upside if right: [UPSIDE]% - Estimated downside if wrong: [DOWNSIDE]% Calculate: - Full Kelly allocation - Half-Kelly (recommended practical maximum) - Quarter-Kelly (conservative) - Compare Kelly output to the tiered system above - which is more restrictive? Discuss why full Kelly is rarely appropriate and what fraction is commonly used in practice. ### Part 3 - Risk Budget & Drawdown Management Define portfolio-level risk rules: - Maximum portfolio drawdown before mandatory de-risking: [MAX_DRAWDOWN]% - Single-position maximum loss contribution (position size × max expected loss) - Correlation-adjusted position limits (reduce sizing when adding correlated holdings) - Sector/factor concentration limits Build a drawdown response framework: | Portfolio Drawdown | Action | | -5% to -10% | | | -10% to -15% | | | -15% to -20% | | | -20%+ | | ### Part 4 - Scaling In & Scaling Out Rules Define rules for building and reducing positions: - **Scaling in:** When does it make sense to add to a position vs. when is it "averaging down into a mistake"? - **Scaling out:** Rules-based trimming (e.g. "trim 20% when position exceeds 1.5x target weight") - **Stop-loss vs. thesis-based exit:** When is a hard stop appropriate vs. when should the exit be driven by thesis invalidation? - **Position sizing after a win:** Do you let winners run to larger-than-target size, or systematically rebalance? ### Part 5 - Correlation & Diversification Check For a portfolio of [MAX_POSITIONS] positions: - What is the minimum diversification benefit? (How many truly independent bets are there?) - How to identify hidden correlations (e.g. two companies both dependent on consumer spending) - Sector concentration check: maximum % in any single sector - Factor exposure check: are you inadvertently running a "long duration" or "long momentum" portfolio? ### Part 6 - Pre-Trade Checklist Before initiating any new position, require: - [ ] Completed bull vs bear analysis with probability-weighted expected value - [ ] Defined exit criteria (both upside target and downside thesis-breaker) - [ ] Position size determined by framework (not emotion or recent performance) - [ ] Correlation check against existing holdings - [ ] Portfolio-level risk budget still has capacity - [ ] Written one-sentence thesis that can be revisited ### Part 7 - Common Sizing Mistakes to Avoid List the 5-7 most common position sizing errors and how to prevent each: | Mistake | Why It Happens | Prevention Rule | ### Part 8 - Visual Verification & Chart Follow-Up - Identify 2-3 multi-year financial trends (e.g. historical drawdown magnitude, volatility cycles, and debt levels) that inform risk and sizing parameters. - Provide the direct Chartloom visual research link for inspecting individual holding tickers: https://www.chartloom.com/c/ticker/[TICKER] ## Output Format Tables, headers, bullets. Educational and framework-oriented. This is a research exercise in portfolio construction principles, not personalized investment advice. **Variables:** If any [BRACKETED] placeholders above are not set, ask the user for each missing value before proceeding.
Replace these placeholders in the prompt with your own values.
| Placeholder | Description | Example |
|---|---|---|
| [PORTFOLIO_CONTEXT] | Description of portfolio style. | a concentrated long-only equity portfolio |
| [PORTFOLIO_SIZE] | Total portfolio capital (approximate). | $500K |
| [MAX_POSITIONS] | Target number of portfolio positions. | 15-20 |
| [RISK_TOLERANCE] | Investor risk tolerance level. | moderate (can tolerate 20% drawdown) |
| [P_WIN] | Estimated probability of positive outcome (%) for Kelly calculation. | 65 |
| [UPSIDE] | Estimated upside (%) if thesis is correct. | 50 |
| [DOWNSIDE] | Estimated downside (%) if thesis is wrong. | 25 |
| [MAX_DRAWDOWN] | Maximum portfolio drawdown (%) before forced de-risking. | 20 |
Replace all bracketed variables with your actual portfolio parameters. The framework is educational - adapt it to your own risk tolerance, time horizon, and investment style. Use the output as a starting point to build rules-based discipline, then codify the rules you agree with into a personal investment policy statement.
Building a personal investment policy statement with specific position sizing rules
Deciding how much to allocate to a new high-conviction idea vs. an existing position
Creating a systematic drawdown response plan before a drawdown happens
Auditing an existing portfolio for concentration, correlation, and sizing discipline
Updated 2026-06-09
These prompts are research tools, not financial advice. Outputs should be independently verified. They are not a recommendation to buy, sell, or hold any security. See our disclaimer for more information.