Showing posts with label Robert Merton. Show all posts
Showing posts with label Robert Merton. Show all posts

Wednesday, May 6, 2009

This makes equity valuation somewhat mystical when stock prices are very low and current earnings are neglible

TO BE NOTED: From Inner Workings:

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Does P/E Mean Anything for Bank Stocks? May 6th, 2009
By
David Goldman

What is a stock? According to the Nobel Prize winner Robert Merton a stock is a call option on the assets of the firm. It is undated, so that the option is perpetual. This makes equity valuation somewhat mystical when stock prices are very low and current earnings are neglible. In the case of Citigroup, for example, at yesterday’s close of $3.31 a share, a 10-year option at the money should have cost about $3 per share — almost the entire value of the stock price. A 10-year, at the money option on JPM at the money should have cost about $18, or slightly over half the stock price. And an at-the-money 10-year option on MSFT should have cost about $6, or a third of the stock price.

There are two components of the stock price, in short: the option value of possible future cash flows, and the discounted value of cash flows that are more or less predictable. Citigroup has no cash flows at the moment; JPM has some. MSFT has a lot. Ivolatility.com has a basic options calculator that will pull in data and allow the user to play with assumptions.

Citigroup will be a zombie for years. It won’t have a lot of cash flows. If it ever regains even a fraction of its former franchise, though, its stock price will be five or ten times what it is now. That’s pure option value. Price-earnings ratio means nothing.

Valuation of bank stocks, in short, is highly uncertain: it requires a set of assumptions about future earnings that cannot be extrapolated linearly from current data.

An interesting question is: why should Citigroup’s stock price rise as implied volatility on its options falls? If the stock is a call option on the company’s assets, shouldn’t it be worth more if volatility rises?

Volatility, as the above chart from ivolatility.com shows, has been plunging,

The answer is that short-term volatility has very little to do with the long-term, ten- to twenty-year volatility of the firm’s assets. The prospect for a big move up or down over the term adds to the option value of the stock."

Friday, April 3, 2009

income on very cheap “toxic” assets can compensate for the impairment on loan losses. My guess is that it will

TO BE NOTED: From Inner Workings:

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Goldman Sachs is basically right about the bank rally, but… April 3rd, 2009
By
David Goldman

…the question is: what are bank stocks worth? Robert Merton, remember, defines a stock as an option on future cash flows. When those cash flows do not exist or are quite uncertain, it’s hard to use the dividend discount model.

Right now, Citigroup (for example) is priced exactly to option value. Using the option calculator for options on Citigroup at ivolatility.com, I obtain a price for a 10-year call on Citigroup stock at a $2.74 strike of — exactly $2.41. In other words, the value of Citigroup stock is the same as that as an option on Citigroup, in the absence of dividends. At yesterday’s close, the market is saying that there might be something there, or there might not — the price of the stock is the price of a lottery ticket. Whether Citigroup exists as a going concern depends mainly on the whim of the federal government. When the market feared nationalization, the value of the option collapsed to $.97.

If we postulate that Citigroup can eke out a minimal level of profits as a zombie bank, eating the dead flesh of toxic assets (as today’s news reports suggest), then its value should be a bit higher than the pure option value. My guess is $4 to $5 is where Citigroup settles, with a comparable level of $10 or so for Bank of America. I don’t think we are going to see Citi or B of A at their old highs for decades, if ever.

So in that sense I agree with Goldman Sachs that there is no true bank rally to be anticipated from mark-to-market changes. Nonetheless, suspending MTM permits banks to become barely-profitable zombies. It is true that loan losses will continue to mount. The question is whether the income on very cheap “toxic” assets can compensate for the impairment on loan losses. My guess is that it will. I know some of the very worst garbage that Citigroup holds in portfolio, for example, so-called AAA securities backed by CCC-rated junk bonds arising from leveraged buyouts. AAA’s off CCC’s — that was pretty hard-core stuff. The hedge fund for which I was chief strategist helped invent these securities, and sold a bunch of them to Citigroup’s Structured Investment Vehicles (SIV’s). And they still are paying.

Remember that Goldman Sachs’ party line always opposed suspending mark to market. Lloyd Blankfein made the outrageous argument in a Financial Times commentary in February that Goldman had traded its way out of a hole in a mark to market world, and didn’t understand why everyone else didn’t. I commented at the time,

There is an obvious fallacy of composition here: Goldman is a clever house, and cleverly reduced risk ahead of others, which it accomplished by selling risk to less-clever institutions. If everyone had been as clever as Goldman Sachs, everyone would have tried to sell at the same time and the market would have crashed in a Krakatoa-like explosion. Everybody can’t be cleverer than the rest, which is what mark-to-market accounting incentivizes everyone to be: first in, first out.

Goldman Sachs has been trash-talking its commercial bank competition all along. I would take comments from Goldman Sachs with a grain of salt (everyone always has taken such comments with several grains of salt). The point is valid (don’t expect a true recovery), but there is probably is a bit of upside in bank stocks from present levels.

Once again: Zombie is as good as it gets. Zombie is beautiful. Zombie is better than dead. And ordinary unhappiness is better than hysterical misery."