Bullish on GOOGL but Testing 1700 or 1640 likely Dec 21 2020

GOOGL is one of a few bullish mega-cap in recent weeks, undervalued compared to AAPL TSLA AMZN. Technically it is likely to retest 1700 and further 1640, before resume uptrend; as MACD has turned negative and MA tilted downwards. I would view the potential pullback to 1700 or 1640 as a buying opportunity with PCS or CDS.