The S&P 500 has gone 377 days without a 2.05% sell-off. That's the longest stretch for the benchmark since the great financial crisis, according to FactSet data compiled by CNBC. Zoom In Icon Arrows pointing outwards The S&P 500 has gone 377 days without a selloff of 2.05% or more, which is the longest period since the Great Financial Crisis. Year to date, the S&P 500 is up more than 14%. Zoom In Icon Arrows pointing outwards The S&P 500 has notched the longest stretch without a 2.15% or more gain since the Great Financial Crisis.