Resolution criteria

This market resolves to YES if the new underground central through-station (Stuttgart Hauptbahnhof underground), which forms the core of the Stuttgart 21 project, officially opens and begins scheduled commercial passenger train operations on or before December 31, 2031.

The market resolves to NO if the underground central through-station does not begin scheduled commercial passenger train operations by this date.

• Scheduled commercial passenger train operations are defined as regular, timetabled passenger trains (such as ICE, IC, or regional trains) actively carrying paying passengers through the new underground station.

• Partial openings of surrounding infrastructure, test runs, or preview events that do not include the official commencement of regular timetabled passenger service at the main underground station will not qualify for a YES resolution.

• The primary source of truth will be official announcements and timetables from Deutsche Bahn (DB) or the project's official portal Bahnprojekt Stuttgart-Ulm. If these are unavailable, major German media outlets (e.g., Spiegel, FAZ, Tagesschau) will serve as fallback sources.

Background

Stuttgart 21 is a massive and controversial railway and urban development project in Stuttgart, Germany. Its central feature is the conversion of the city's historic terminal station into an underground through-station, supplemented by roughly 57 kilometers of new railway lines and 30 kilometers of tunnels.

The project has been plagued by significant delays and ballooning costs since construction began in 2010. Initially scheduled to open in 2019, the target was repeatedly pushed back to 2025 and then December 2026. In June 2026, German media reported that a comprehensive review by Deutsche Bahn revealed major project execution shortcomings, particularly regarding the implementation of the digital signaling system (European Train Control System, or ETCS), emergency power systems, and physical construction defects. Consequently, the target date for full commissioning of the underground station was delayed to late 2031, though some partial, phased service improvements may start earlier.

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