It's not only CPH. Also ZLD, AC8, THC, CAN, MXC have gone down...

It's not only CPH. Also ZLD, AC8, THC, CAN, MXC have gone down considerably in recent weeks/months. My impression is that the market has entered into a risk averse mood. I have quite a few start-up tech companies, a few MC companies and early stage bio techs in my portfolio which has gone down considerably, even though ASX is at all time highs. Also crypto currencies down. People looking for more established companies maybe? Could that explain it?