Interactive Visual Concept Diagram
The 1% - 2% Fixed Risk Rule per Trade
Limiting maximum account loss on any single trade to 1% or 2% of total capital.
### The 1% Risk Rule Explained
The 1% Rule mandates that you never risk more than 1% of your total trading equity on a single trade.
Step-by-Step Position Sizing Formula: 1. **Account Equity**: ₹10,00,000 2. **Maximum Risk Allowed (1%)**: ₹10,00,000 × 0.01 = **₹10,000** 3. **Trade Entry**: NIFTY at 24,500 4. **Stop-Loss**: NIFTY at 24,450 (Risk = 50 points = ₹2,500 per lot of 50) 5. **Position Quantity**: $$\text{Position Size (Lots)} = \frac{\text{Max Risk Budget (₹)}}{\text{Risk Per Lot (₹)}} = \frac{10,000}{2,500} = 4\text{ Lots (200 qty)}$$
- •Position sizing is calculated from Stop-Loss distance, NOT arbitrarily.
- •Relying on fixed 1% risk ensures you can withstand 10 consecutive losses and retain > 90% of equity.
Fractional Kelly Criterion & Volatility-Adjusted Allocation
Optimal capital growth formula modified for financial markets.
### The Kelly Criterion Formula
Developed by John L. Kelly Jr. in 1956 at Bell Labs, the Kelly Criterion calculates the optimal percentage of capital to allocate to maximize long-term logarithm of wealth.
$$f^* = \frac{p \cdot b - q}{b}$$
Where: - $f^*$ = Fraction of capital to wager - $p$ = Probability of winning (Win Rate) - $q$ = Probability of losing ($1 - p$) - $b$ = Odds received (Reward to Risk ratio)
Fractional Kelly (Half Kelly): Full Kelly can lead to extreme portfolio volatility. Institutional quantitative funds utilize **Half-Kelly (0.5 × f*)** or **Quarter-Kelly (0.25 × f*)** to achieve 75% of maximum growth rate with 50% less drawdown.
- •Never use Full Kelly in live trading due to parameter estimation uncertainty.
- •Half-Kelly or Quarter-Kelly provides optimal capital growth with smooth equity curves.
Futures & Options Margin Management & Leverage Limits
Handling SEBI peak margin mandates and option buying vs writing risks.
### SEBI Peak Margin Framework
The Securities and Exchange Board of India (SEBI) enforces strict peak margin requirements across equity derivatives.
Margin Sizing Principles: 1. **Option Buying**: Limited risk (premium paid), but time decay (Theta) works against you. Maintain strict capital allocation (< 3-5% of portfolio). 2. **Option Writing / Futures**: Unlimited potential risk. Requires Span + Exposure margin. Always hedge naked short positions with protective wings (spreads).
- •Never utilize 100% of available margin; maintain a 30% cash margin buffer for spike volatility.
- •Use hedged option strategies (Iron Condors, Spreads) to reduce margin requirements.
Dynamic Position Reduction during Drawdown Phases
De-leveraging trading size after consecutive losses to protect capital.
### Defensive De-leveraging Protocol
When experiencing a drawdown streak (e.g. 3 consecutive losses), reduce position size by 50% until equity returns to a new high.
Drawdown Ladder Protocol: - **Peak Capital**: 100% Sizing - **5% Drawdown**: Reduce position size to 75% - **10% Drawdown**: Reduce position size to 50% - **15% Drawdown**: Halt trading; perform mandatory system audit.
- •Cutting position size during drawdowns stops equity curve degradation.
- •Increase position size only when account equity is at or near new all-time highs.
Recommended Reading & Academic Literature
Trade Your Way to Financial Freedom
By Van K. Tharp
The definitive textbook on position sizing architectures.