This is something very common in stocks. In a bear market it is called a "dead cat bounce". Most probably it will go back to keep falling in a few days, if not tomorrow, unless the trend changes which would be very surprising to me.
A sudden, sharp decline is also called a 'falling knife', particularly due to how it looks in a box plot, somewhat resembling a bloody dagger.
So... when the market in general tries to 'catch' a 'falling knife'... this produces a 'dead cat bounce' if the market at least temporarily makes the price actually rebound a bit.
So... to ... mix terminology... I guess you catch a falling knife by bouncing a cat off the floor, which goes upward, catches the knife, kills the cat, and then the dead cat with the knife in it collapses through the broken floor.