The liquidity is always low on the internal dex .... thats why the token is volitile ...
the internal dex is not the only place where you trade HBD though, the 24h volume is 2.1m on upbit, and any arbitrage opportunity on the internal market is already automated so the dex cannot go up unless the whole market follows it, and then you need to move a lot of liquidity (tens of thousands) to make it move.