Most investors were expecting a correction this morning after sharp gains in the past few days but when they saw that there wasn't much selling pressure, buyers came back and pushed up the market.
There is some profit-taking after yesterday's gains, with many investors investors cautious over interest rates.
Scores of investors are of the view that interest rates won't go up much higher.
It's good to see CLP making a one-off gain last year and investors are happy to see that its earnings from overseas operations are increasing. However, it faces problems ahead as the government looks to change the scheme of controls which apply to local power companies.
The market was very quiet because most investors didn't want to take any significant positions ahead of the Christmas holidays.