As an extra to @onetonne your observations of the...

As an extra to @onetonne your observations of the counterintuitive nature of MFI are correct. As an oscillating indicator by design output data is the result of repeated fluctuations between two reference points which in this case are volume and SP. As an oscillator the calculation is such that periods will exist where a rise in the MFI will coincide with a drop in SP and vice versa. As an oscillator it is likely to produce more false signals on average than true signals. With this in mind when use MFI sometimes I look for instances of difference between the peak and troughs of price and how they correlate to the peak and troughs in MFI other than simply looking at the reading themselves. Are higher and repeat rises in MFI being matched by a similar movement in SP? If the correlation is not linear this sometimes indicates that a reversal of trend may be in the making. Limited in its application however MFI like any another analytical tool is best suited when paired with another indicator. My opinion only of course!