Sugaree - re 50 day MAHI Sugaree ... how are things! Hot as hell out here in my neck of woods.
Some institutional investors suggest trading above 50 day MA is bullish. 200 day is more often seen as line in the sand for bear/bull case in the minds of many.
Some swing traders use 20, 40, 50 moving averages while short term traders who may watch shorter term MA's work on 1 minute to hourly charts.
I place more confidence in a stock chart rising above the 50 day if supported by persistent higher highs and higher lows along with Momo indicators that show ample room to run up. MACD still below 0.0 line means not in bull market on daily chart yet (Monthly chart another story), but RSI rising above mid point suggests some potential room to run.
Stochastic momo indicator on Daily chart is currently overbought and rolling over but things can run hot for a while.
NVA looks pretty decent for a continuation to maybe $11.50 to $11.75 +/- if markets remain supportive, at which time it will be bumping up on some significant resistance.
Good luck!