Vega Feedback Loop

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The Vega Feedback Loop describes a dynamic where changes in implied volatility (Vega exposure) trigger subsequent trading actions that further influence market volatility, creating a self-reinforcing cycle. For instance, a rise in implied volatility prompts option writers to hedge their increased Vega exposure by buying or selling the underlying asset, which in turn pushes the spot price and potentially increases realized volatility. This interaction is critical in options markets.