This morning...23 Feb 2026 09:32
Just a little formula for those who want to get a greater understanding of how this all works, more entertaining than the Trolls here this morning I hope..
This formula is the standard quantitative method used by professional traders to calculate the Expected Move of an asset over a one-day period. It translates the Annualised Implied Volatility into a specific price range for a single trading session...
'The Expected Move equals the Current Price multiplied by the Annualised Implied Volatility, divided by the square root of two hundred and fifty-two.'
i.e 0.71p x (1.50 / 15.87) = 0.067p
Expected Move... This represents a one-standard-deviation price range for a single trading session. Statistically, there is a 68.2% probability that the asset will close the day within this calculated range...
The market price of the asset at the specific moment of calculation (currently 0.71p for HE1 at 9:57 AM GMT)...
Annualised Implied Volatility is the market's expectation of price movement over a one-year period, derived from the pricing of derivative contracts or recent historical realised volatility...
Square Root of Two Hundred and Fifty-Two: Since volatility scales with the square root of time, and there are approximately 252 trading days in a standard year, this factor is used to "de-annualise" the volatility to determine a single-day range....