The Dow ended up giving up gains made earlier in the week and closed below the key 16,400 level.
At this point it's unwise to try and figure out on which side of this key divide the market will be in the next session.
What we can see is the market is right back where it was a month ago.
This extended 16,100 - 16,631 will be one to watch for a signal of the markets future direction.
We'd expect the market to make another attempt at this key level in Monday's trade with the 16,315 level acting as some kind of support