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Recent advances in natural language processing have contributed to the development of market sentiment measures through text content analysis in news providers and social media. The effectiveness of these sentiment variables depends on the implemented techniques and the type of source on which...
Persistent link: https://www.econbiz.de/10012629835
Despite momentum's strong historical performance, its returns have large negative skewness and occasionally experiences persistent strings of sharp negative returns, referred as "momentum crashes" in the recent literature. I argue that momentum crashes are due to crowded trades which push prices...
Persistent link: https://www.econbiz.de/10013057742
Using a very large data set with more than 9,700 stocks listed on NYSE, AMEX and NASDAQ, we analyze overnight price jumps and report short-term investor overreaction to information shocks and document return reversal and predictability up to five days. For negative and positive overnight jumps,...
Persistent link: https://www.econbiz.de/10014254878
, high volatility, and high sensitivity. Interestingly, the study documents that in the Indian market investor attention is …
Persistent link: https://www.econbiz.de/10013183936
stock market activities; i.e., return, volatility, and trading volume, respectively. In sum, bidirectional dynamic …
Persistent link: https://www.econbiz.de/10012038696
market volatility as measured by the VIX. Implying that investor purchase decisions are primarily driven by returns and sale …
Persistent link: https://www.econbiz.de/10013128717
effects of highs and lows on a stock's beta and return volatility. We find that implied volatilities and stock betas decrease …
Persistent link: https://www.econbiz.de/10013133792
volatility in Group of 20 countries using various methods, including panel regression with fixed effects, panel quantile … and negative investor sentiments and stock market returns and volatility. Specifically, an increase in positive investor …. The effect of investor sentiment on volatility is consistent across the distribution: negative sentiment increases …
Persistent link: https://www.econbiz.de/10013272311
We implement a novel approach to derive investor sentiment from messages posted on social media before we explore the relation between online investor sentiment and intraday stock returns. Using an extensive dataset of messages posted on the microblogging platform StockTwits, we construct a...
Persistent link: https://www.econbiz.de/10012950889
The effect of investor sentiment on stock volatility is a highly attractive research question in both the academic … indicators. In addition, we divide the realized volatility into continuous and jump parts, and then investigate the effects of … trading (VPIN), on the path of investor sentiment affecting stock volatility. It is evidenced that investor sentiments are …
Persistent link: https://www.econbiz.de/10013368470