I live in San Francisco. A lot of west coast types didn't vote for DT and don't like him too much. There are lots of people who have made significant amounts of money this decade holding amounts of tech company stock - many of these people are employees, founders, board members, etc. Obviously many of these companies are on the west coast. Some of these people have homes with tremendous mortgages. So if you worked at FB, AAPL, GOOGL, etc etc etc and the list goes on, and you have significant 6 or 7 figures in your company or other tech stocks, and also sitting on mortgage on a 1-3M house, what would you do?

OK, hold stocks, everything will be fine.
Um, if markets crash then we could literally be homeless so let's raise some cash.

Or maybe this is totally bogus and it is all about AAPL and China threats from DT. Now matter how you slice it tech is weak since election so let's look at charts.

NDX Q
What is really going on here is a struggle at the 2000 high 4816. Grey lines are 2015 high and quarterly close high. Although back under 2000 top, the grey lines still may act as support.

NDX M
In this monthly chart I have added a grey line at the 2015 monthly close high which has also been near exact support on 9/2016 and 11/2016 bars. However, we are again seeing selling from the red line 2000 top.

NDX W
Same lines here. Now look how many weeks have lifted above the 2000 top only to fail again. I count 4 up bars above the level, and now this is the 3rd time since the 2nd half there has been selling from 4816.

Here is the usual pivot chart. NDX is sitting on Q4P and below that 2HR1 which 'should be' support. If it failes then it it is the 3rd break this quarter although #2 on 11/14 was short lived and held both 2HR1 and NovS2 on the same day so I'm even willing to bracket that as a break. This level will be a major tell going forward.