Sentiment Analysis in the stock market refers to the use of natural language processing and text analysis techniques to identify and extract information about the sentiment or opinion towards a specific stock or the overall market from various sources such as news articles, social media posts, and analyst reports.Investors and traders use sentiment analysis to gain insights into market sentiment, track public opinion about a specific stock or sector, and identify potential opportunities or risks. Sentiment analysis can be used to measure the level of bullishness or bearishness in the market, which can be an indicator of future market movements.Sentiment analysis in stock market can be applied to various sources of information such as news articles, social media, and earnings calls transcripts. For instance, if a news article is expressing positive sentiment towards a specific stock, it could indicate that the stock is likely to rise in value. Similarly, if a large number of tweets or social media posts express negative sentiment towards a stock, it could indicate that the stock is likely to drop in value.Sentiment analysis in stock market is not an exact science, and it's important to consider other factors such as fundamentals, technical analysis and market trends before making any investment decisions. Sentiment analysis can be a useful tool but it should not be used as the sole indicator for making investment decisions.