US third-quarter earnings season kicks off this week with results from major banks like JPMorgan Chase, Citigroup and Morgan Stanley due this Friday. With stock markets on a rollercoaster amid Federal Reserve rate hikes, recession fears, elevated inflation, and escalated tensions between Ukraine and Russia, investors will be looking towards Q3 earnings season for clues about the health of the US economy. Here’s what to watch. Earnings preview Q3 earnings estimates have fallen in recent weeks. According to IBES data from Refinitiv, analysts expect a 4.1% earnings increase for S&P 500, down from the 11.1% increase forecasted at the beginning of July. But given lowered earnings estimates, actual Q3 earnings may beat expectations. Stronger-than-expected earnings could still give stocks a boost if accompanied by positive forward-looking guidance from corporate leaders. Sector spotlight  The Energy and Industrials sectors are forecasted to report the largest earnings per share (EPS) growth for Q3,...