SIX’s September 8 Market Signal launch bundles real-time and historical data through an API, with best bids and offers across SIX, BME and Aquis’s 16 European markets. The consequential sentence is about rights: SIX explicitly says users are licensed to train trading models and AI agents on the data. Institutions can access the offering now; the retail rollout begins in Switzerland, with EU and UK expansion planned. Official announcement
For a quant organization, the attractive proposition is fewer negotiations between “we can retrieve this” and “we may use it in the experiment.” A research agent that can query historical observations, construct features and leave an auditable record is more useful than another chat interface over a price chart. Clear training rights could make that workflow easier to approve. That is my inference—not proof that a particular institution’s intended use is covered by the final contract.
There are two important limits. This is group-venue coverage, not a consolidated European best-price record, and BBO is not depth. A strategy evaluated against this universe could mistake a coverage gap for a trading opportunity. Nor does an accessible API establish suitability for a latency-sensitive production path: the launch materials do not settle the price, latency SLA or your redistribution requirements. Product scope, The Trade
Worth a look for research-data procurement and agent experiments. Not grounds to retire a direct feed. The distinction is rather more expensive to discover after deployment.