Excellon is just one of many producers being put out of business by the derivatives speculators.
Thing is if stocks crash and the demand for industrial metals falls, silver by-product production will also decline, and pretty soon the larger demand / supply situation will finally tip over. The other side-effect of lower stocks (bonds?) is the asshole speculators (with hedge funds at center) will have less money to buy the precious metal derivatives (ETF calls), which would be good for prices.
Everything is crossed.
Cheers