As of December 2025 RLI Corp. has a market cap of โน515.40 Billion. This makes RLI Corp. the world's 2839th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.
On Dec 5th, 2025 the market cap of RLI Corp. was reported to be: