• U.S. stocks fell on Monday, with the Dow falling as much as 500 points and the Nasdaq 100 losing nearly 5% from its peak.

• Rising interest rates last month weighed on stock prices.

• Boeing shares fell as much as 6% after a plane crash in South Korea over the weekend.

U.S. stocks fell on Monday as the tech sell-off accelerated into the end of the year.

The Dow Jones Industrial Average recouped some of the morning’s losses, losing about 300 points by midday after falling more than 500 points shortly after the opening bell. The S&P 500 and Nasdaq Composite also erased some earlier losses.

The Nasdaq 100 extended its decline to nearly 5% in mid-December due to rising bond yields, while the S&P 500 fell about 3% over the same period.

Yields fell slightly on Monday, with the 10-year Treasury yield falling six basis points to 4.559%. However, the yield has increased significantly since the beginning of the month, when it was around 4.1%.

According to Katie Stockton, founder of Fairlead Strategies, recent weakness in the stock market has triggered a technical “sell” signal.

“The SPX saw a slight increase in the shortened week, but our intermediate-term indicators still registered sell signals, including the weekly stochastics index and the MACD,” Stockton said, referring to two momentum-based technical indicators.

Stockton said the sell signals increase the likelihood of a stock market correction in January.

A decline in Boeing shares weighed on the Dow on Monday, with the stock falling as much as 6% after a Boeing 737-800 plane crashed in South Korea on Sunday, killing 179 people on board.

As for this week’s economic data, investors will be keeping an eye on the release of the S&P Case-Shiller Home Price Index on Tuesday morning, followed by initial jobless claims on Thursday and ISM manufacturing data on Friday.

It’s a shortened holiday trading week as stock and bond markets are closed on Wednesday for New Year’s Day.

Here’s what the US indices stood at 12:35 p.m. on Monday:

Here’s what else is going on:

For commodities, bonds and crypto:

• West Texas Intermediate crude rose 0.95% to $71.27 a barrel. Brent crude, the international benchmark, rose 0.66% to $74.28 a barrel.

• Gold prices fell 0.20% to $2,626.60 an ounce.

• The 10-year Treasury yield fell six basis points to 4.559%.

• Bitcoin fell 0.81% to $92,810.

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