There was a notable incident where the price hit $1k/hr in 2011. https://moz.com/devblog/amazon-ec2-spot-request-volatility-hits-1000hour/ https://moz.com/devb

There was a notable incident where the price hit $1k/hr in 2011. https://moz.com/devblog/amazon-ec2-spot-request-volatility-hits-1000hour/ https://moz.com/devblog/amazon-ec2-spot-request-volatility-h... From talking to AWS, when people pay above-on-demand prices, it's because they carelessly put in a huge bid.