South Korean Government to Auction Off $518,000 Worth of Bitcoin.
https://www.cryptocoinsnews.com/south-korean-government-to-auction-off-518000-worth-of-bitcoin
do you even have any idea how many more of these auctions have been in the history so far! in fact this one is one of the smaller ones and they never had any effect whatsoever on bitcoin price. mostly because these coins never reach the exchanges, they are auctioned off exchange and possibly sold by the winner of the auction off the exchanges. so there will never be any sell pressure because of them.
and FYI bitcoin volume in past 24 hours was 700,000 BTC or $1,725,000 and that is just the start in a calm market, you should have checked it yesterday when the volume was twice this.