  Every financial crisis has caused a dual shock to the global economy. The
shortage of market liquidity, such as default in debt and bonds, has led to the
spread of bankruptcies, such as Lehman Brothers in 2008. Using the data for the
ETFs of the S&P 500, Nasdaq 100, and Dow Jones Industrial Average collected
from Yahoo Finance, this study implemented Deep Learning, Neuro Network, and
Time-series to analyze the trend of the American Stock Market in the
post-COVID-19 period. LSTM model in Neuro Network to predict the future trend,
which suggests the US stock market keeps falling for the post-COVID-19 period.
This study reveals a reasonable allocation method of Long Short-Term Memory for
which there is strong evidence.
