I think the panic buying will not occur in altcoin when the volume just a little bit. panic might occur alternately in altcoin if it has a large volume of coins in exchange, such as the etherum
Panic buying will only happen when small fish are seeing whales are investing, they always want to ride with the whales as they think they made the wiser decision, it is just like in gambling where we tail with those great handicappers in sports.
I think panic buying was imminent, and may be done by people who believe that prices will go up after halving bitcoin. bitcoin users will not miss the opportunity, indeed the current bitcoin price has not gone up. but when there is panic buying, probably bitcoin prices will break $ 800 in a few days
Panic buying will always occur because there's something that making things go on hype, maybe because of the price, because of the technical benefit of bitcoin. We don't know the certain reason but panic buying will always happen.