# Custom Formula Collection

Historical Volatility System, Connors and Raschke's

In the August 96 issue of Stocks &

Commodities, Traders Tips, Allan McNichol explains how to use the MetaStock Explorer to search for securities based on Connors and Raschke's historical volatility system. The following is from his article.

To do this go to The Explorer and choose the New button. Enter in the following column and filter formulas.

Col A: | Vol ratio | Std(Log(C/Ref(C,-1)),5) / Std(Log(C/Ref(C,-1)),99) | ||

Col B: | NR4 day | High - Low < Ref(LLV(H-L,3),-1) |
||

Col C: | Inside | High < Ref(High,-1) AND Low > Ref(Low,-1) |
||

Col D: | High | High | ||

Col E: | Low | Low | ||

Filter | ColA < 0.5 AND (ColB = 1 OR ColC = 1) |

Run the exploration on the desired securities and display the report. Column A shows the ratio between the six-day and 100-day volatility. Column B displays a 1 if today is a NR4 day and a zero on all other days. Similarly, column C displays a 1 if today is an inside day. The high and low are displayed in columns D and E to determine the entry points.

For additional help with formulas, please see the Formula Primer.

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- Creating Custom Formulas
- Absolute Breadth Index
- Advance / Decline Line with Negative Volume
- ADX/ADXR Custom (without rounding)
- Alpha and Beta
- Arms Index (TRIN)
- Average-Modified Method
- Breadth Thrust
- CCI Moving Average Crossover System Test
- Chande's Momentum Oscillator
- Combining Trend and Oscillator Signals System Test
- Commodity Channel Index Buy and Sell Signals
- Comparative Relative Strength
- Comparative Relative Strength Exploration
- Coppock Curve
- Derivative Moving Average
- Detrended Price Oscillator
- Disparity Index
- Displaying the Price of a Security in 32nds and 64ths
- Divergence between the Close and an Indicator
- Dynamic Momentum Oscillator
- Elder Ray and The Force Index
- End Point Moving Average
- Genesis of a Simple Futures Trading System
- Historical Volatility Daily
- Historical Volatility System, Connors and Raschke's
- Historical Volatility Weekly
- InSync Index
- Investor Preference Index
- Keltner Channels
- Ken Roberts' Formulas
- Kurtosis Indicator
- MACD Histogram
- Market Facilitation Index
- Market Facilitation Index Expert Advisor
- Market Thrust Oscillator
- Martin Pring's KST Formulas
- Mass Index
- McClellan Oscillator
- McClellan Summation Index
- Modified VIX Indicator
- Money Flow Index
- Moving Average of Only One Day of a the Week
- Natenberg's Volatility
- New Advance Decline Line
- Pathfinder Trading System
- Polarized Fractal Efficiency
- Price Action Indicator (PAIN)
- Price Volume Rank
- Random Walk Index
- Rate of Change Since a Specific Date
- Regression Oscillator and the Slope/Close Indicator
- Relative Strength Index, Custom (RSI)
- Relative Volatility Index (RVI)
- Slope of a Line
- Slope of a Linear Regression Line
- Standard Error Bands
- STIX Oscillator
- Stochastic %D
- Stochastic Relative Strength Index
- Tick Line Momentum Oscillator
- Trading Channel Index
- Wilder's Volatility
- WillSpread by Larry Williams