Binance is giving away 4 million iost to the top 500 holders with over 100,000 iost tokens. If there is less than 500 holding over 100,000 then the 4 million will be divided by the top 500 holders. Whats even better though is 1 million iost will be spit to 5 lucky users who just make at least .5 btc in trades(buys plus sells). That s 200,000 iost just for making a few trades.