ADS-B for traders: what corporate jets reveal before press releases

In the days before a major acquisition becomes public, something almost always moves first: an aeroplane. Bankers fly to the target's home town. Executives visit the acquirer's headquarters. Due-diligence teams shuttle between plants. All of it happens on aircraft that broadcast their position, in the clear, to anyone listening.

ADS-B in sixty seconds

ADS-B (Automatic Dependent Surveillance–Broadcast) is the system by which aircraft transmit their GPS position, altitude, speed and identity roughly once per second. It is mandatory in most controlled airspace in the US and Europe. Hobbyist receivers — tens of thousands of them, networked — pick these signals up and feed the public trackers. Unlike airline schedules, ADS-B covers business aviation: the Gulfstreams and Falcons registered to holding companies.

The famous academic result here is worth knowing: a 2019 study of corporate jet movements ("Flights to a target") found that abnormal flight activity between an acquirer's and a target's home airports predicted M&A announcements with economically significant returns. The signal is real. It is also noisy, which is the interesting part.

What flight patterns can suggest

• M&A activity. Repeated tail-number visits between two corporate home airports, especially mid-week, especially clustered within a few weeks.
• Crisis management. A board-heavy cluster of jets converging on headquarters on a Sunday rarely precedes good news.
• Operational interest. Visits to specific plants, mines or test sites can hint at expansions, problems or inspections.
• Deal roadshows. Pre-IPO and financing patterns: the same jet hitting three financial centres in four days.

The honest caveats

Anyone selling you "jet tracking = free alpha" is skipping the hard 80%:

1. Attribution is the work. Aircraft are registered to trusts and shell LLCs precisely to obscure ownership. Building a reliable tail-number → company mapping is the real dataset.
2. Blocking and laddering. Programmes like the FAA's LADD let operators suppress their registration from public feeds, and some aircraft swap temporary identifiers. Coverage is good, not perfect.
3. Base rates. Executives fly constantly for reasons that move no stock. A single suspicious flight is an anecdote; a deviation from that aircraft's own historical pattern is a signal.
4. Legality and ethics. Receiving ADS-B is legal — the data is broadcast unencrypted — and trading on public movement data is generally treated as mosaic theory, not inside information. But the line is jurisdiction-specific; if you run regulated money, this belongs in your compliance conversation, not just your toolkit.

Using it as one input, not an oracle

The professional pattern is boring and effective: flight anomalies generate hypotheses, which then get tested against everything else — options flow, news cadence, sector context, and increasingly the physical layers (is the plant the jet visited also showing unusual logistics activity?). The value of having flight data inside a markets terminal, rather than in a separate browser tab, is exactly that cross-referencing speed.

Atlas plots live ADS-B traffic on the same globe as vessels, infrastructure and a geo-tagged news wire, with your watchlist one panel away. The free plan includes delayed flight data — enough to start building the pattern-recognition this post describes before any money is at stake.