Rocket Companies (RKT) shares tumbled 5.05% during Thursday's intraday trading session, as a report from Redfin revealed that pending home sales have sunk to a five-month low, driven by climbing mortgage rates.

The decline in pending home sales signals weakening demand in the housing market, which directly impacts Rocket Companies' core mortgage lending business. As mortgage rates continue to rise, fewer homebuyers are entering the market, reducing the volume of mortgage applications and originations that Rocket Companies relies on for revenue.

The Redfin report, released prior to the market open, highlighted that elevated borrowing costs are deterring potential buyers, casting a shadow over mortgage lenders' near-term outlook. Investors reacted swiftly to the data, sending Rocket Companies stock sharply lower in early trading.