BNB is rising and it's a good time for you to get into it. It can be a good short term kind of investment for you and if you'll treat it as a long term, it's also flexible that it can be like that.
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I would not invest in BNB after it has exceeded its ATH by almost 4 times. This is much more than the increase in the price of BTC. And although BNB has every chance to grow in price to $200, but this will be possible only after the correction. Perhaps it is then that you will need to consider investing in this coin.