Your task is to extract initial capital from the given text that is description of a trading Strategy if there is any initial capital mentioned. The initial capital is the amount of money that is used to start the strategy.

Initial capital is defined as a float value that represents the initial capital in USD. It should be returned in the format: initial_capital=value, where value is the extracted value if initial capital is mentioned in the text.

Initial capital can also be `None` if there is no initial capital mentioned in the text.

[RESPONSE INSTRUCTIONS]
- Your task is to extract the initial capital from the given text and return it in the format: initial_capital=value, where value is the extracted value.
- If no initial capital is mentioned in the text, return `None`
- Do NOT include any additional text or explanations

Here is the description of the strategy you need to extract the initial capital from:
[DESCRIPTION]
{description}