In May since the decline in bitcoin, altcoins have also fallen until now, and many traders in the world are stuck at a fairly deep peak and many have cut losses,
The last All time high was 60k USD for bitcoin and that time altcoins were riding pretty high. If the holders of altcoins have been so foolish to not sell even partial fractions of their holdings at that high then nobody can help them. Currently the market is bearish to bullish so I dont expect the altcoins to move up again anytime soon unless another crazy celeb goes out there and starts promoting.
is this the work of bookies
Humans tend to blame others for their own losses. Was anybody stopping them from buying that altcoin? None. Was anybody stopping them from selling that altcoins? None. So if they did not look into the profit making trade then it is their fault.
Bookies dont exist in this market, but in gambling market and if you are referring to the "operators" of stock market concept then with altcoin you do have bagholders, not bookies.
I think you might be referring to margin trading and not spot trading is that the case why you used the term "bookies"?