RS Rating Vietnam - IBD Style (AlphaStock Edition)

Description: This implies the Relative Strength (RS) Rating specifically optimization for the Vietnam Stock Market, inspired by Investor's Business Daily (IBD) methodology.

How it works: Unlike the standard RSI (which measures internal momentum), this RS Rating compares a stock's performance against a benchmark index (Reference Index: VNMIDCAP or VNINDEX) over the last 12 months.

Calculation Formula: The rating is based on weighted performance (ROC):

40% weight: Latest 3 months (1 Quarter)
20% weight: 6 months
20% weight: 9 months
20% weight: 12 months

Features:

Auto-Scaling RS Line: The line automatically adjusts to fit the price chart, removing the need for manual fixed scales.

Benchmark Comparison: Compares stock Alpha vs. VNMIDCAP (default) to detect leaders even when the general market is skewed by large-cap stocks.

Color Coded:

Purple: Rating > 90 (Strong Buy/Leader)
Green: Rating > 80
Yellow: Rating > 60
Red: Rating < 60

Smart Display: Shows historical Rating values in the Data Window when hovering over past candles.

Credits: Designed by Admin AlphaStock.