What happened

Shares of dry-bulk cargo shipper DryShips (NASDAQ:DRYS) are down 12% as of 3:45 p.m. EDT.

So what

The question everyone is asking is: Why?

It's not an earnings report that's to blame. Although DryShips' most recent earnings were bad, that news is already three weeks old. Nor is it Wall Street's fault. No one has upgraded or downgraded DryShips stock in months. 

Fact is, the most recent news item involving DryShips was the company's own press release yesterday, announcing that the company has secured a "senior secured credit facility" from ABN AMRO bank and the Export-Import Bank of Korea for $150 million. Far from bad, that actually seemed like good news, inasmuch as it gives DryShips the cash it will need to at least partly finance the purchase of four very large gas carriers that DryShips has on order.

Two animated men look on in shock as a stock chart falls through the floor.

Why is DryShips stock down again today? That's a real head-scratcher. Image source: Getty Images.

Now what

So if there's no recent bad news about DryShips, and there is at least one arguably good piece of recent news on the company, then why is the stock down so much today? The answer I fear, is as obvious as this: DryShips stock is very volatile stock.

It can't be otherwise -- with a share price of only $2.40, every penny's worth of change in stock price equates to nearly a half-percent movement in the stock. Plus, with a market capitalization of less than $24 million, it doesn't take a lot of investor money to move DryShips stock up (or, like today, down).

With DryShips, investor sentiment really is a self-fulfilling prophecy. And DryShips stock is going down because investors think it will keep going down.

This article represents the opinion of the writer, who may disagree with the “official” recommendation position of a Motley Fool premium advisory service. We’re motley! Questioning an investing thesis -- even one of our own -- helps us all think critically about investing and make decisions that help us become smarter, happier, and richer.