"President Trump is giving us a discount," says Jeffrey Small on reaction to today's tariffs on Canada, Mexico and China. He believes 2025 will be a winning year for Wall Street with names like Apple (AAPL), Alphabet (GOOGL) and Meta Platforms (META) as "undervalued" plays. He considers today's dip in Nvidia (NVDA) another notable buying opportunity where investors can hold the stock for the next two years.