Original sentence: But the exchange rules regarding leverage were changed, to the detriment of their position, and as the price began to fall again, they were unable to meet their obligations, causing panic in the markets.COMEX Spot) and the brothers were estimated to hold one third of the entire world supply.In 1980 the price of silver reached a spectacular all time high ($48.70/oz
Edited sentence: But in early 1980, the exchange rules regarding leverage were changed, placing heavy restrictions on the purchase of commodities on margin.In 1979 the price of silver jumped from $6/oz to an record all-time of high of $48.70/oz.The Hunt brothers had borrowed heavily to finance their purchases, and as the price began to fall again, dropping over 50% in just four days, they were unable to meet their obligations, causing panic in the markets.The brothers were estimated to hold one third of the entire world supply of silver (other than that held by governments.The situation was for other prospective purchasers of silver was so dire that the jeweller Tiffanys too out a full page ad in the New York Times, condemning the Hunt Brothers and stating "We think it is unconscionable for anyone to hoard several billion, yes billion, dollars worth of silver and thus drive the price up so high that others must pay artificially high prices for articles made of silver