Spot price overrides - Amazon Elastic Compute Cloud
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Spot price overrides

Each Spot Fleet request can include a global maximum price, or use the default (the On-Demand price). Spot Fleet uses this as the default maximum price for each of its launch specifications.

You can optionally specify a maximum price in one or more launch specifications. This price is specific to the launch specification. If a launch specification includes a specific price, the Spot Fleet uses this maximum price, overriding the global maximum price. Any other launch specifications that do not include a specific maximum price still use the global maximum price.