This document discusses using sentiment analysis and historical stock data to predict stock prices. It proposes analyzing sentiments expressed on Twitter about companies and correlating that with stock price movements. It also discusses using machine learning techniques like naive Bayes classification, time series analysis, and ARIMA models on historical stock data to predict future prices. The proposed system aims to help novice investors make decisions by collectively analyzing news and market sentiments using machine learning algorithms. Accurately predicting stock prices could help investors realize more profits.