At the end of the day, in the U.S. stock market,
the Dow Jones Industrial Average has never closed higher than 23,000 points,
(Dow Jones Industrial Average)收盘平均指数从未达到23,000点以上，
at least not before yesterday.
That’s when it reached a new record, closing at 23,157 points.
It gained 160 points during the day.
What does this mean?
For one thing, it means stocks are up.
The Dow was an average of 30 significant stocks.
Companies like Apple, Home Depot, McDonald’s, Nike and Walmart are all in it.
When the Dow is up, it’s a sign the U.S. stock markets up.
And when the stock markets up, it’s one indicator of good health in the U.S. economy.
Though the Federal Reserve says wages, another economic indicator, are not doing as well.
The Dow has set a string of records this year.
It hit 22,000 for the first time in August.
It can be influenced by uncertainty about the future and events in the news, from natural disasters, to legislation by Congress.