Check out the companies making headlines before the bell. Citigroup – Shares fell 1% after the bank warned investors Wednesday evening of a potential quarterly loss due to a decline in the Argentine peso and restructuring charges. Citigroup is scheduled to announce fourth-quarter results on Friday morning. Lyft – Shares fell more than 1% after Goldman Sachs downgraded Lyft to Neutral from Buy. While the company expects revenue and flight volume growth to re-accelerate, it said such a shift is already being reflected in estimates. Occidental Petroleum – Shares rose 1.1% after a Berkshire Hathaway document filed with the Securities and Exchange Commission revealed that the company owns 34% of Occidental. The oil company also previously reported lower-than-expected production levels in the Gulf of Mexico compared to previous guidance. However, the company is on track to stay within its guidance range. Chewy – The pet e-commerce stock rose 2.5% on the back of Barclays’ overweight upgrade. Barclays said Qiwi could see significant returns in the e-commerce sector, which faces other challenges this year. Salesforce – The cloud software company jumped 1.3% after Bird upgraded shares to outperform from neutral. Baird cited Salesforce’s strong margins and positive valuation. Cryptocurrency Stocks – Bitcoin miners rose after the SEC gave the green light for spot bitcoin ETFs to begin trading in the U.S. Iris Energy and CleanSpark jumped 9% and 7%, respectively. Marathon Digital and Riot Platforms each added more than 6%. Cryptocurrency exchange Coinbase rose 5% and shares of bitcoin agent Microstrategy rose 4%. Yum Brands – Shares fell 5% in light trading volume after being downgraded to equal weight from overweight by Wells Fargo. The bank expects traffic to slow and price gains for parent company Pizza Hunt to moderate in 2024. Background. The company also raised its price target to $18 from $16, which would imply a 25% upside from Wednesday’s close. KB Home – Shares fell 3% after the homebuilder reported a 4.5% decline in the median home sale price during the fourth quarter, overshadowing better-than-expected earnings and revenue for the quarter. — CNBC’s Sarah Main, Alex Haring, Tanaya Machel, Jessie Pound and Michelle Fox contributed reporting