they helped the railroads issue stocks and bonds to raise capital. They would then sell these securities to investors in capital markets.The development of the US oil and gas industry was largely financed through capital markets. In the late 19th and early 20th centuries, investors provided significant capital to oil companies to fund the exploration, drilling, and production of oil and gas reserves.
Many of the major oil companies, such as Standard Oil and Texaco, were able to grow and expand through the issuance of stocks and bonds. The US real estate market has also been heavily influenced by capital markets. The issuance of mortgage-backed securities allowed for the bundling and trading of home mortgages, making it easier for banks to provide home loans to a broader range of borrowers.