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WaveRadar: See and Understand EC2 Spot Price History Like Never Before

WaveRadar: See and Understand EC2 Spot Price History Like Never Before

Donghyun Lee 2023-09-182010

Introducing WaveRadar


There aren't really any great tools for understanding and comparing historical Spot EC2 prices for the 600+ instances available on AWS. To solve this, we created WaveRadar, an interactive dashboard for viewing Spot EC2 prices across all major AWS regions. WaveRadar lets you easily identify the regions offering the lowest $/hour for a given instance or instance family. It can also help you quickly compare the relative price performance $/core and $/memory of different EC2 instances at recent and historical Spot market prices. Use WaveRadar as a free FinOps tool to make more informed decisions around cost optimization, just sign up for a free account via the steps below.


To access WaveRadar just navigate to the dashboard_link.


Screenshots of WaveRadar

region optimizer tab


visualize/download data tab



Example use cases

Filter/sort the tabulator in the region optimizer tab to find the right instance and region:

  1. Finding the cheapest region for t3.medium spot instance on Sep 12 (3x difference) : lowest recent spot price ($0.0125) at us-east-2b / highest recent spot price ($0.0404) at il-central-1a
  2. Finding the cheapest region for t3.medium on-demand instance on Sep 12 (1.5x difference) : lowest on-demand price ($0.0416) at us-east-2b / highest on-demand price ($0.0672) at sa-east-1c
  3. Find a cheap instance with 4 CPUs and 16 GiB memory in us-west-1c on Sep 14 : lowest recent spot price ($0.0480) for t4g.xlarge / highest recent spot price ($0.0662) for t2.xlarge


Visualize and download spot price history in the visualize/download data tab:

  1. Access historical spot price data from April to the current date for informed decision-making.
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