In recent years, stream processing has become increasingly dominant in the technology industry, particularly among large internet companies like Netflix and LinkedIn. This type of software is designed to process data as it moves, allowing for real-time reactions to massive streams of event data. In traditional markets like finance, where data volumes are lower, the uptake of stream processing demonstrates a subtle shift towards reshaping IT functions. Financial institutions like Monzo, ING, Royal Bank of Canada, and Nordea have adopted stream processing technologies to adapt to changing customer needs and improve their operational efficiency. By repurposing streaming technologies used by technology giants, these firms can manipulate event streams as they move through the organization, unlocking new insights into business operations. Streaming systems also enable unified data enablement, making data a self-service commodity available on a global scale. This approach allows companies to respond instantly to customer needs and adapt to changing market conditions, ultimately leading to increased agility and competitiveness in the industry.