Resolves to market prob if the price has been consistently trading within a 6%-wide band for one week.

Fine print:

• One week: a continuous period of 7 * 24 * 60 * 60 seconds.

• Resolves to the average during that period: min + (max - min) / 2.

• If there was a stability period, but it was broken and I've missed it, will still resolve based on that period.

• If this doesn't stabilise before close, resolves to N/A.