Investing Research Articles

Are moody investors prone to avoid risk on Monday and accept it on Friday? In his January 2016 paper entitled “Day of the Week and the Cross-Section of Returns”, Justin Birru examines how long-short U.S. stock anomaly portfolio returns vary by day of the week. His hypothesis is that pessimistic (optimistic) mood on Monday (Friday) leads to… Keep Reading

Do reversal, momentum and reversion effects hold among German stocks? In his January 2016 paper entitled “Trading Strategies Based on Past Returns – Evidence from Germany”, Martin Schmidt examines the performance of short-term reversal, intermediate-term momentum, long-term reversion and seasonality strategies in the German stock market. The seasonal strategy considers one-month returns from multiples of 12 months ago…. Keep Reading

Are there different patterns of short-term stock return reversal based on stock liquidity (measured by size, volatility or turnover)? In their January 2023 paper entitled “Reversals and the Returns to Liquidity Provision”, Wei Dai, Mamdouh Medhat, Robert Novy-Marx and Savina Rizova examine interactions between short-term reversal returns and stock liquidity metrics. They select reversal candidates… Keep Reading

Are there ways to revive the fading performance of the short-term reversal (STR) strategy, which is long stocks with the lowest returns last month and short stocks with the highest? In their September 2023 paper entitled “Reversing the Trend of Short-Term Reversal”, David Blitz, Bart van der Grient and Iman Honarvar investigate revival of the… Keep Reading

Can artificial intelligence platforms such as ChatGPT be good stock day traders? In his March 2024 paper entitled “Can ChatGPT Generate Stock Tickers to Buy and Sell for Day Trading?”, Sangheum Cho tests whether ChatGPT 3.5 turbo supports profitable day trading. He instructs ChatGPT to pretend to be a professional day trader who picks from… Keep Reading

How well do the short-term stock picks of publicly available artificial intelligence (AI) platforms perform? To investigate, we asked Grok, ChatGPT, Perplexity, Gemini and Meta AI the following questions on April 20, 2025: Please succinctly provide your unique best long idea for the next 30 days. Please succinctly provide your unique best shorting idea for… Keep Reading

Do commodity futures exhibit short-term momentum and long-term reversion, as do stocks? In the August 2006 version of their paper entitled “Momentum Strategies in Commodity Futures Markets”, Joelle Miffre and Georgios Rallis examine the profitability of 32 momentum (short-term continuation) and 24 contrarian (long-term reversal) strategies in commodity futures markets. The momentum strategies buy (sell)… Keep Reading

…traders employing frequent trading strategies such as that offered by VRTrader.com must achieve low trading friction and be prepared for frequent losses and high return volatility among individual trades. Specifically for VRTrader.com, they may also want to ignore short trade recommendations.

We evaluate here the stock market forecasts of Don Hays since late 2000, shortly after he established his own investment advisory firm. Evaluated predictions/recommendations come indirectly from two sources: (1) first from MarketWatch columns as far back as early 2004; and, as subsequently suggested by reader David Zaitzeff, (2) from TheStreet.com columns covering mostly the… Keep Reading

We evaluate here the commentary in “Jubak’s Journal” at MSN Money since January 2001. Jim Jubak is the senior markets editor for MSN Money, with a background in journalism. The table below quotes forecast highlights from the cited source and shows the performance of the S&P 500 Index over various numbers of trading days after the… Keep Reading