Efficient data relocation in an asymmetric multi-level caching structure for efficient data storage and retrieval

An electronic data access system for relocating tiles within a multi-level memory cache, comprising:

• a cache manager coupled to a multi-level memory cache, the multi-level memory cache including a first memory cache and a second memory cache;
• wherein the first memory cache stores a first plurality of tiles containing open order data representing open orders for one of buying or selling a financial instrument at consecutive price levels that fall within a defined price range, the consecutive price levels including a most aggressive price and a least aggressive price,
• the second memory cache storing a second plurality of tiles containing open order data representing open orders for one of buying or selling the financial instrument at prices that fall outside the defined price range;
• wherein the cache manager is configured to relocate tiles between the first memory cache and the second memory cache in response to changes in the open order data for one of buying or selling the financial instrument at the most aggressive price.