Stocks closed at record highs on Friday, with the S&P 500, Dow Jones, and Nasdaq 100 all notching their biggest weekly gain of the year.

The Dow crossed 44,0000 for the first time ever as stocks were on track for their best week in a year on optimism that President-elect Donald Trump's policies will boost the economy.

Axon Enterprise, which sells Tasers and body cameras used by police officers, helped lead the market. It jumped 28.7% after delivering stronger profit for the latest quarter than analysts expected. It also raised its revenue forecast for the full year to $2.07 billion, which would mean 32% growth.