With the new Sorted Map API in Aerospike v3.8.4, it is now possible to store Sorted Map data in Aerospike. This feature allows you to retrieve partial data based on certain criteria and generate a Leaderboard (Top Stocks, Top Advertisers, Top Customers, etc.), Portfolio Stock Position, or Summary Report. Check out the blog post and demo here.
How To Model Time-Series Data for Top-Performing Stocks in Aerospike using Sorted Maps (Aerospike Blog Post - July 6, 2016)