The stock market continued its upward trend on Tuesday, with the Dow Jones Industrial Average fluctuating between positive and negative territory. The S&P 500 rose by 0.2% while the Nasdaq Composite saw a 0.5% increase.

Earnings reports from companies like United Parcel Service and Merck led to a mixed market response, with their stocks dropping. On the other hand, Boeing and Procter & Gamble saw their stocks rise after reporting positive results.

Read more at Barron’s: Stocks Keep Grinding Higher at the Open