Why did Lead futures jumped from 125 to 150 in June 2019 ? And why did it stopped following international lead price?

Commodities
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lead
lead843×546 38 KB

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I’m not sure if the chart is correct. I just checked in Kite chart for Leadmini19sepfut. From July/August onwards it’s been trading above 152 and is rangebound.

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The gap up happened in June
And since then it isn’t moving like the international price