A 5.09% weekly gain inside a 23.37% range cannot yet validate the signal
Should the team mark the signal validated by this week's 5.09% gain, or treat it as one observation from a 121.0% volatility week and keep the signal provisional?
The market facts are real; the decision maker is illustrative.
The week and the position
In the week of 1 July 2019, BTC rose 5.09% to close at 11,406.24, in the upper third of a 23.37% range running from 9,727 (Tuesday 11:00 UTC) to 12,000 (Thursday 00:00 UTC). Dollar volume was 2.15 times its prior 12-week average and realised volatility was 121.0% annualised. The best day gained 10.1% and the worst day lost 6.65%. An illustrative research team holds live trades from a signal opened near the weekly open. The four prior weeks were mixed: -12.58%, 17.38%, 21.81%, -0.48%.
Judgment
One week in this regime cannot validate a signal. The 5.09% weekly gain is smaller in magnitude than three of the four prior weekly moves (-12.58%, 17.38%, 21.81%), and this week itself ran a 23.37% range with 121.0% annualised volatility, so the sign of the week depends heavily on the exact entry near the open and on Wednesday's 10.1% best day. Keep the signal in provisional status, log this week as a single observation conditioned on 2.15x volume, and size live trades so they survive a repeat of the Tuesday low at full size. Accept that the team forgoes a faster upgrade for the week's gain.
What would change it
Lift provisional status only if several weeks at similar volume and volatility show positive expectancy that survives a day-level breakdown, rather than resting on one best day. If the team's logs show trades held through Thursday's -6.65% day without breaching their loss limit, that specific concern about survivability is removed.
What sets this case apart
The question is not whether the signal was right this week, but whether one volatile week is admissible evidence of an edge.