CNBC Business

Here are the most important news items that investors need to start their trading day.

These are the stocks posting the largest moves in premarket trading.

Southwest said it canceled about 16,700 flights between Dec. 21 through Dec. 31, failing to recover from severe winter weather.

Levi Strauss sales fell, but still topped Wall Street's expectations. The company also offered positive revenue guidance.

More than 60% of non-policyholders now plan to buy health insurance, according to an Oliver Wyman survey of Chinese consumers in December.

Southwest canceled more than 16,000 flights over the holidays.

Jim Cramer told investors to stay diversified.

"Mad Money" host Jim Cramer rings the lightning round bell, which means he's giving his answers to callers' stock questions at rapid speed.

Companies in Cramer's list include Wells Fargo, Raytheon Technologies, Delta Air Lines, J.B. Hunt and Boeing.

These are the stocks posting the largest moves in after-hours trading.

The rule repeals a Trump administration decision that stripped safeguards for the southeastern Alaska rainforest.

Tesla's price cuts make the vehicles more affordable and likely eligible for federal EV tax credits but tank the resale values of cars for current owners.

CEO John Stankey dismissed the idea that the phone carrier industry is in a pricing war.

GenBioPro argues that FDA regulations on the abortion pill preempt West Virginia's state law that basically bans the medication.

Consumers are calling for the Live Nation and Ticketmaster monopoly to end. Here's how they became the dominant force in the live entertainment business.

Criticism of Live Nation, which owns Ticketmaster, intensified after a botched sale of tickets to Taylor Swift's Eras Tour.

The IRS expects to issue guidance on the clean vehicle credit in March. Experts think the rules around car batteries will limit who can get the credit.

These are the stocks posting the largest moves midday.

The Investing Club holds its "Morning Meeting" every weekday at 10:20 a.m. ET.