If you're just trying to predict how a stock's price will change in the next couple of weeks or months under whatever market conditions happen to prevail over that time period, that's speculation. That's what the vast majority of individual investors engage in -- "I think the price of this stock will go up, so I'm going to buy it." Arguing that speculation is hard in a chaotic market gets no sympathy. Actual value investing means you think you have an idea of what shares in a particular company are worth, plus faith that the market price of a stock will reflect that underlying value over the long term. Arguing that value investing is affected requires arguing that market chaos has the power to prevent market prices from reflecting underlying value over the long haul. That's a pretty big claim and requires some justification.