Stocks had an untamed start now investors need to be wary

Signs of market mania. Volatile tech stocks. Rising government bond yields. 

Welcome to the second quarter, where Wall Street strategists say the trends that defined the first three months of the year will remain influential." The start of 2021 is indicating what we expect for the full year," said Jeffrey Sacks, head of the investment strategy in Europe, the Middle East and Africa for Citi Private Bank.

Overall, the stock market performed well between January and March. The S&P 500 gained 5.8%, closing out Wednesday near a record high. The Dow Jones Industrial Average rose 7.8%, while the Nasdaq Composite climbed a more modest 2.8%.