Everyday the same market

First this:

Though there haven't been any major trading catalysts, this session's tone has been positive since the start.

Then this:

Stocks have entered into a sideways drift that has left the broader market's gains intact.

I conclude the stock market will do nothing until I quit looking.

Wait, this is new:

In contrast to the past couple of sessions, stocks managed to maintain solid gains into the close on Monday.