How to value current NASDAQ/NYSE tech share

We have two topics.

– How to value current NASDAQ/NYSE tech share and whether we should buy or not –

So this year Nasdaq index up for 45%. That’s significant up in stock history. But hey,, should we still invest into same area or not? I will talk about 40% rule and PSR to evaluate current stock map.

– feature tech stock ‘Zoom’ –
Talking about Zoom from fundamental and technical aspect