The minimum deposit amount is $100 with the minimum option cost of $10. The company has mainly neutral reviews from traders which is directly connected to its rather low popularity.
Flash Binary is a binary options broker operating without regulation license and having a very small number of traders’ reviews. These are the reasons for the low ranking.
BT Option is quite a specific broker focused mainly on the cooperation with the traders from Asian countries. The platform supports two languages only - English and Japanese.
Options OnUs is the broker with pretty low popularity and small number of reviews from binary options traders. This broker has no license of any regulator.
Close Option is certainly not a leading binary options broker, although some traders find this platform convenient and attractive. This broker is not regulated.