I also wonder why BitShares has dropped to below 7 cents (USD). I don't have a lot of cash right now, so I'm glad for the price drop as I was able to grab about 600 more BitShares. I kind of hope it stays low for a little while so I can get more.
Right now, I'm also learning as much as I can and experimenting with trading on OpenLedger. So far, I have had quite a bit of success with trading.