Need to be careful here. The current action might be the middle part of a flat - wave A might have been the drop from 2491 to 2417, if so this is wave B which will likely be 1.38 of A giving a target of 2520. Interestingly the subsequent wave C might be 1.618*A giving a target of exactly 2400 support. Not saying this is going to happen, but an option to watch for. The idea will start to look valid if the current upwards pattern develops into a rising wedge for 2520 from the 2417 low.