Today features December PPI, earnings from three large banks, and retail sales. Investors also await a possible Supreme Court tariff ruling, while oil rose on Iran worries.

Precious metals reach new highs in overnight trading with March Silver Futures (/SIH26) hitting a high of 92.195 and February Gold (/GCG26) reached a high of 4650.1. March Silver Futures are up 5.59% to 91.29 and February Gold futures are up 0.75% to 4634.30 (As of 8:30 AM ET).

Tech shares mainly fell early today, putting pressure on indexes despite solid retail sales data and mostly positive bank earnings. A Supreme Court tariff ruling may come today.

Stocks are mixed around midday, with tech exhibiting some relative strength, following slightly cooler-than-expected inflation data and Q4 earnings from several big banks.

What's the debt ceiling? Learn how the debt ceiling works and how a default on federal debt could impact the U.S. stock market and economy.

December CPI and JPMorgan Chase are out before the open, with analysts expecting solid results from JPM and 0.3% CPI gains. Treasury yields are near the top of their recent range.

The Justice Department allegedly began an unprecedented criminal investigation of the Federal Reserve chair.

Bank results and the Consumer Price Index are key this week. Jobs data pushed down rate cut odds, but stocks hit new highs as unemployment fell. A 10-year note auction comes today.

Technology has become a major driver of emerging-market stock performance.