Hi Hive account@boxmining and everyone. Many thanks to the author again. I am just watching this channel every day - very informative and saves me a lot of time.

Speaking about the current FUD. There is one thing which is not clear to me. I have not seen anything like that before (though I am not a crypto day-trader, so do not watch crypto charts often enough). But it is just interesting , whether the gap I noticed (explained below) appeared just recently because of so many upward and downward fluctuations in a pretty short period of time... Or it happens from time to time and I was not just attentive enough before. I am glad to hear from anyone who knows what is going on, guys! So let's get to my question...
I found this situation a few hours ago:

Why there is such a difference between Bittrex and Poloniex (Steem coin)? Why can't I just buy Steem coin at $1.09 at Poloniex and immediately sell at $1.26 at Bittrex? I know there is no "free money", so should be something I am missing here... :)