In other words bitshares can be a decentralized commodity exchange, a comex dex.

Where assets r pegged by fully backed reserves of bitshares, unlike fractional reserves in traditional markets.

U can say very secure, it can be used to block Black Swan events when assets spiked or dipped too high or down in ratio of collateral.

Because that is what happened in 2008 in traditional financial markets creating meltdown of financial markets.

It's little complex to comprehend, but for that u have to amalgam financial structure into decentralized nature of Blockchains.