Indicator Description
The "ALT20 INDEX" is a financial analysis tool designed to track the aggregate value of the top 20 cryptocurrencies by market capitalization and closing prices over specific periods. This indicator reflects changes in the combined value of these 20 ALTCOINs, providing an overview of trends in the cryptocurrency market.
==================================

Purpose and Practical Applications
1. Tracking Top Cryptocurrencies:
- The indicator allows monitoring the value of the top 20 ALTCOINs, reflecting the general volatility of the cryptocurrency market.
- Helps investors focus on high-capitalization assets.

2. Performance Comparison:
- Serves as a tool to compare the performance of the ALT20 group against other assets like Bitcoin, Ethereum, or traditional financial indices.

3. Assessing Market Health:
- Enables evaluation of market trends, identifying growth or decline periods.

4. Practical Applications:
- Suitable for fund managers, long-term investors, or trend traders to make decisions based on the overall ALTCOIN market performance.
--------------------------------------------

How the Indicator Works
1. Selection of Top 20 ALTCOINs:
- Cryptocurrencies are selected based on their market capitalization at each rebalancing period.

2. Weight Allocation and Calculation:
- Weight: Determined by the market capitalization of each ALTCOIN relative to the total market capitalization of the top 20.
- Token Quantity: Calculated based on weight, total allocation points (e.g., 100 points for T1, 722.63 points for T2, etc.), and each ALTCOIN's closing price.

Formula: Token Quantity = Weight × Total Allocation Points/Closing Price
​
3. Periodic Rebalancing:
- Rebalancing frequency: Once a year.
- At each rebalancing period, the weights and token quantities are adjusted based on new market capitalization and prices.

4. Portfolio Value Calculation:
- The value of each ALTCOIN is calculated as:
Token Value = Closing Price × Token Quantity

- Index Total:
ALT20 Index ='20'∑'i=1' Token Value'i'
----------------------------------------------

Rebalancing Periods
T1 (2020-2021): Initial period, token quantities calculated based on weights and a total of 100 points.
T2 (2021-2022): Rebalanced with a total allocation of 722.63 points.
T3 (2022-2023): Total allocation of 252.26 points, reflecting portfolio adjustments based on new prices and market caps.
T4 (2023-2024): Total allocation of 261.43 points.
T5 (2024-Present): Total allocation of 437.42 points, updated to reflect the current market.
----------------------------------------------

Indicator Features
- Displays Index Value Over Time:
+ index_value_T1 to index_value_T5 represent the portfolio value during specific timeframes.
+ Values are calculated based on the daily closing prices of ALTCOINs.
- Visualization:
+ The index for each period is plotted on the chart, enabling easy observation of market trends over time.
---------------------------------------------

Practical Applications
- Portfolio Management:
The indicator helps track the performance of asset groups within the ALTCOIN portfolio.
- Integration into Trading Systems:
+ Used as a reference for automated or manual trading strategies.
- Market Analysis:
+ Assists analysts in evaluating cryptocurrency market movements based on the top 20 ALTCOINs.

Let me know if further optimization or additional information is needed!