Answer: delayed reaction.
Step-by-step explanation:
The scenario depicted in the question is an example of a delayed reaction. Before the announcement was made that a new chip design had been developed, Acme common stock closed at $20 but since the announcement was made, there has been an increase in the closing price of the stock .
This shows that the information flow had an effect on the price of the stock and this led to the delay in market reaction. Therefore, this is referred to as a delayed reaction.