Why the NAB (ASX:NAB) share price climbed higher today

The National Australia Bank Ltd (ASX: NAB) share price was a positive performer on Wednesday.

The banking giant’s shares rose 1% to end the day at $23.61.

Why did the NAB share price push higher?

The big four banks were all on form on Wednesday and helped drive the S&P/ASX 200 Index (ASX: XJO) higher.

This appears to have been down to improving investor sentiment following news that another COVID-19 vaccine was likely to be given emergency use approval in the United States this week.

In addition to this, an announcement out of NAB appears to have also given its shares a boost this afternoon.

What did NAB announce?

NAB has announced that it has entered into an agreement to sell its New Zealand life insurance business, BNZ Life,…