Bloomberg LP transforms bond markets with the Bloomberg Terminal (1981–present)
1981–presentWhat Happened
Michael Bloomberg, fired from Salomon Brothers with a $10 million severance, built a terminal that consolidated bond pricing, analytics, and market data into a single screen. Before Bloomberg, bond traders gathered pricing through phone calls and printed sheets. The terminal became so essential that 'Bloomberg' became synonymous with financial data itself.
Outcome
Wall Street firms adopted the terminal rapidly through the 1980s, and the integrated messaging system created powerful network effects that locked in users.
Bloomberg grew into a $12-billion-per-year business with over 325,000 terminal subscribers, demonstrating that whoever owns the financial workflow — not just the data — builds an enduring monopoly.
Why It's Relevant Today
9fin is running a similar playbook for credit markets: digitize a manual, document-heavy process, embed the tool in daily workflows, and expand from there. The question is whether debt markets in the 2020s offer the same greenfield opportunity that bond pricing did in the 1980s.
