Overnight interbank lending rates have shot up past 30%, according to BBO's Mr. Dallen.

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They run much less risk if they can get just one penny in front of a BBO.

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"The U.S. remains the only actual customer paying cash and at full-price, " said Russ Dallen, head trader at Caracas' BBO Financial Services.

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"There are virtual runs on some of the banks ... that are rumored to be in trouble, " said Russ Dallen, a banking analyst at BBO Financial Services in Caracas.

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In the case of Big Bank Big Oil Capital, looking at the history chart for BBO below can help in judging whether the most recent dividend is likely to continue, and in turn whether it is a reasonable expectation to expect a 10% annual yield.

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If computerized traders jump in front of the other shoppers (or, to be more technical, jump in front of a best bid and offer, a BBO), and there is an eighth or even a sixteenth of a dollar until the next price point, the jumpers run some risks.

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