On Wednesday, NQ opened and quickly dropped down to key support at 2620 before consolidating and closing just below 2640 broken support now resistance.
2620 is a very important support for NQ.
-- A clear and sustained break below could potentially trigger a cascade of selling, with the next support way down at 2560 then 2490.
-- If it can stay above 2620 NQ would either continue to go sideways or rally, with resistance at 2640 then 2660.