What you are seeing is just the money moving around where people can make money.
Right now BitShares is sort of in a trading dead zone between the summer when investors done invest now, and with the advent of 2.0 where all hopes are hinged.. there really isn't much opportunity to make a whole lot right now in BTS in trades... there are other things going on in the crypto space where those funds have gone to trade.
It's nothing to be overly concerned about.
However.. regarding the delegate business.. If people are going to start voting out delegates then I recommend voting FOR our proposal
http://vote.bunkermining.com for our additional delegates.
We had $250 in bitUSD payouts tonight, and payout everyday. With further support we could grow to 400x that much in daily payouts. So if you are all concerned about market cap.. voting for these delegates is certainly a great way to help hedge it up!