stock prices and the dollar have strengthened significantly since Trump was elected in November, largely in anticipation of corporate profits rising as regulatory burdens ease and tax rates fall.
Mnuchin said he is still aiming to achieve passage of comprehensive tax reform by the time Congress takes its August recess.
He also said he expects the Trump administration's Obamacare replacement bill to pass later on Friday.
Reuters is the news and media division of Thomson Reuters.
Thomson Reuters is the world's largest international multimedia news agency, providing investing news, world news, business news, technology news, headline news, small business news, news alerts, personal finance, stock market, and mutual funds information available on Reuters.com, video, mobile, and interactive television platforms.