After a very brief decline on Monday just after the open NQ spent the rest of the day rallying with the closed near the day high.
Key support for NQ on Tuesday will be at 15,440. NQ should remain bullish above it but to continue the Monday uptrend, NQ would need to break above Monday day high and continue to push higher.
Trading between 15,440 and 15,540 implies more sideways consolidation pattern.