ETH just retreated to around 4662 before pausing and rebounding. This is the lower support level of the 4660-4720 range. You can enter a short position and cover it after it breaks through 4750. However, if 4660 falls below this level, you should sell your short position. If you do, you can start at 4626-4612, add to your short position at 4572-4555, and build a solid defense at 4550-4508. The new high above 4888 is 4966.