Final answer:
The average loss percentage after a spike in stock prices cannot be precisely determined without specific data. Market crashes and gains can vary greatly, as evidenced by historical events like the 1929 crash where the market lost 90% of its value over three years. Estimations are based on trends, historical data, and current market conditions.
Step-by-step explanation:
The question appears to concern the average loss percentage after a 'gap up short' spike in the stock market. However, since stock market outcomes are very situational and depend on the specific conditions and the market mechanics of the time, it is not possible to provide an exact average gain or loss figure without more specific data. From historical data, such as the market crashes and surges mentioned, we understand that markets can be highly volatile and the percentages can vary greatly.
For instance, the market crash of 1929, as referenced, saw the Dow lose 90% of its pre-Crash value over the course of three years. However, predicting gains and losses based on top tick prices without broader context, such as specific time frames, volumes, or additional market conditions, would be speculative. Traditionally, traders analyze historical data, market trends, and financial news to inform their estimates regarding potential future gains and losses.