I would accumulate qqq enough. by looking at the return rate of qqq for the past 10 years, you know what to do. that's amazing. it's simply a good choice for children education fund.
for me, I can see s&p 500 index shows sign of stagnant. so, i would say be cautious now. not to say the marker would start correction or bearish but would be wise to take some profit.
it depends on your strategy. if you plan to hold every long term like for few years, of course you can go in UNH now. however, if you're just aim for earning fast profit like short-term trading, then UNH is still a no at least technically. unless you have superb trading skills for day trading.
$Tesla Motors(TSLA)$ still early to say if tesla can hold 300. In fact there is not much good news on tesla. The only one was Musk can focus more on tesla and that's it. We still need to see more better figure from quarter report. Of course technically if tesla can stand firmly on top 200ma then would be a good start for trading.
Indeed this is a very good news to those tech giant like appl, avgo and tsmc. However, we know that Trump is always changing here and there. We shall see how further in this case. Trade with extra careful.