Over the past couple of weeks, a mystery trader purchased more than 50% of all the copper stocks on the London Metals Exchange, valued at over $1 billion. There were rumors that whoever it was is trying to corner the copper market.

As it happens the mystery bank is JPMorgan Chase (JPM), The Wall Street Journal reported, citing The London Daily Telegraph. The bank bought some of the copper for clients. But the bank owns a large chunk, estimated at 175,000 metric tons.

Slowly, piece by piece, the inside details of what happened during the financial meltdown are coming to light. The latest disclosure is that JPMorgan Chase (JPM) CEO Jamie Dimon and General Electric (GE) CEO Jeffrey Immelt were on the New York Federal Reserve Board in 2008, when their institutions got enormous loans, as reported by the New York Times.

This little story tells you just how the insiders do their wheeling and dealing. On Sept. 15, JPMorgan Chase received a $3 billion loan from the Fed. On 12 occasions in October and November 2008, GE issued short term IOUs. The Fed purchased $16 billion of them.

Forgive me if I stray slightly, but I could not help thinking about how ironic it would be if someone leaked information as to the whereabouts of Wikileaks founder and "fearless leader" Julian Assange -- who is in hiding!

It would be even more ironic if a CIA operative who had his cover blown by Wikileaks decides what goes around comes around. Let's face it, in its own way Wikileaks has become a rogue nation, so why wouldn't the CIA get involved?

In the mean time, this has probably helped world markets as it has overtaken everything else as the big story of the past 48 hours. In a bizarre way, Assange may have achieved one of his goals by bringing the world closer together, sort of.

Banks were sick for a while. Some of them died (41 in the third quarter alone, a total of 127 so far this year), quickly taken over by the FDIC (Federal Deposit Insurance Corp.), transferring their ticket to ride to another institution that changed the name on the front door (but kept the FDIC sticker) over a weekend. More will evaporate. There are currently 860 on the FDIC's list of problem institutions as of September 30. That compares to 829 at the end of June. But the latest bank profits suggest the worst is over for the banking sector.

Banks could face another mortgage crisis, according to Barron's, if they are forced to buy back subprime, Alt-A and options adjusted home mortgage securities they've sold prior to the financial crisis, mostly as mortgage-backed securities. Already some buyers, like Fannie Mae (FNMA) and Freddie Mac (FMCC), have enjoyed some success returning defective mortgages. And this could be just the beginning.

The banks, of course, are fighting vigorously to fend off these demands. As usual, the courts will have to settle the matter. The focus of the debate seems to be founded on the issue of representations and warranties that may or may not have been violated.

There are no surprises among the 11 banks mentioned. It is the conspicuous absence of names you might expect to find that is.

So now, when you thought that Goldman Sachs Group Inc. (GS) was king of the hill, think twice. JPMorgan Chase & Co. (JPM) and Bank of America Corp. (BAC) both racked up perfect trading quarters, according to the Wall Street Journal.

JPMorgan had 12 days where it made more than $200 million each day. Bank of America had at least 25 days where it made more the $100 million from trading in the third quarter.

Massey Energy (MEE) closed up $4.80 to $46.94 on reports that Alpha Natural (ANR) may buy the company, DJ says. December and January 55 calls are active on total call volume of 58K contracts, compared to put volume of 23K puts. November call option implied volatility is at 53 and January is at 48, compared to its 26-week average of 52. Increasing option volume suggests traders are positioning for price movement.

CBOE Volatility Index (VIX) closed down 29 cents to $18.23, near a six-month low after EPS, elections, FOMC meeting and October employment report.

CBOE option volume leaders today: Bank of America (BAC), Las Vegas Sands (LVS) JPMorgan (JPM) and Citigroup (C).

Options Update is by Stock Specialist Paul Foster of theflyonthewall.com.

Last week's column gave five questions for investors to ask before they buy or sell a stock. Here are five more to help start any research. They'll help save a lot of time and more important, money and loss of sleep.

6. What is Price to Book? This measures the price you pay compared to the amount of equity that's in the company. Equity is all the money investors have put in plus all the profits. When you can find a company that is selling for a Price to Book of less than 1, it means you are buying the equity in the firm for less than it's worth. It's like buying $1 for less than a dollar. Hard to find these stocks? Not now in the Financial sector. Look at Bank of America (BAC). It's Price to Book is 0.54. That means you're paying 54 cents for every $1 of equity. Of course, investors think there could be many more charges against that equity before the bank stabilizes, but if they're wrong, an investor might be picking up a real bargain here. Other examples: JPMorgan Chase (JPM) at 0.89; Citibank (C) at 0.74.