This happened after the US Federal Reserve decided not to change interest rates.

The Federal Reserve is like a bank for banks in the US.

It helps control the economy by changing interest rates.

When interest rates are low, people and businesses can borrow money more easily.

This can help the economy grow, but it can also cause inflation.

Inflation is when prices for things like food and housing go up.

The Federal Reserve tries to keep inflation under control.

The Australian stock market is affected by what happens in the US economy.

Many Australian companies do business with the US, so what happens there can impact them.

The stock market is like a place where people buy and sell pieces of companies.

When the market goes down, it means people are selling more than they are buying.

This can be a sign that people are worried about the economy.

But it's also possible that the market will go back up if people start feeling more confident.