JPMorgan‘s chief global strategist, Marko Kolanovic, predicts a challenging year ahead for stock markets in 2024. What Happened: Kolanovic revealed on Monday that investors should brace themselves for a riskier reward environment than previously anticipated, Business Insider reported. He added that the emerging disinflation narrative is likely to face challenges in the first half of the year, and geopolitical tensions could further intensify the risk-off sentiment. The strategist also noted that “markets appear overbought and sentiment is in complacent territory.” He cited high RSIs, the VIX n…