Medianized Price Feeds
Medianized Price Feeds are a mechanism where a protocol calculates the median value from a set of reported prices to determine the official price of an asset. This approach is highly effective at filtering out outliers that might result from either technical errors or deliberate attempts to manipulate the market.
By ignoring the highest and lowest reports, the system ensures that the final price is anchored to the consensus of the majority of data providers. This method is commonly used by major oracle networks to protect against data spoofing.
It provides a simple yet powerful defense against malicious actors who might attempt to skew the price by submitting extreme values. Because the median is less sensitive to extreme data points than the mean, it offers superior stability during volatile periods.
This is a fundamental technique for ensuring the accuracy of collateral values in lending and derivatives. It simplifies the logic of price discovery while maintaining a high level of security.