The Fear Of Missing Out (FOMO) appears to be showing up in recent days.

 $SPX and other major indices are roaring ahead, despite a relatively narrow number of stocks participating.
The seasonal period ("Santa Claus Rally" and the end of the post-Thanksgiving seasonal) runs through Friday, January 3rd. That doesn't mean the market will abruptly fall at that time, but it does mean that it won't have the benefit of seasonality after that date.
In summary, the outlook is bullish. A market like this can produce complacency, but that is the one thing we can control. We can and must avoid becoming complacent. But, for now, enjoy the ride.