When I visit the CMC site today I saw that there is a coin name called AurumCoin (AU) has huge price growth and its almost the second expensive coin of the crypto next to bitcoin I think so Why this much growth on a shit coin?Anyone noticed this?
But it looks like not enough volume to trade that coin on any exchange?

It's a problem to an extent with all coins, but mostly with very low cap coins. Reported market cap can be extremely misleading.
A hypothetical example:
A coin has a supply of 1 billion coins, with a price of $0.001 per coin, so it has a cap of $1 million.
But the coin has no volume, there is just a single unfulfilled sell order selling 1 coin for $1.
Then someone fills that order, they spend $1 and get 1 coin. So the current price is $1 per coin, there are 1 billion coins, so market cap is reported as $1 billion.