Nvidia uptrend may be running out of steam, where are the stops?

Nvidia currently trading at 36 times sales and pricing in all the forward growth in earnings analysts can see. Many cheap stocks trade at 1-2 x sales, normal price to sales for growth stocks might be 5-10x sales. But 36 x times has a huge built in growth premium which makes holding these growth names risky. Its just like a premium on precious metals at the coin dealer, except the growth premium here far larger.

The trend is in tact as long as NVDA stays above 20 day moving average, in my opinion.

sox index and sox/gold may be showing waning momentums signals already.