How the Markets CAN Move

12/28/2007 @ 23:23:34

As my last post, I'd like to leave an insight into the regularities and irregularities of the financial markets. Many times, we assume that markets should behave a certain way because it makes sense to behave that way. However, we forget that markets many times go haywire and pursue irrational ideologies that will inevitably need to correct themselves. Some of us try to fight this irrationality, and in the process, get washed up by the powerful ripples, while others ride profit waves all the way to the shoreline. The dilemma then is to determine how the markets are moving, and to what modes can they possibly change.

A single stock is many times affected by a few major headlines a year. However, the stock becomes a product of other equity movements through its beta exposure and can thus undergo many unexplainable swings in a year. These swings are not merely noise, but rather indication. They are telling us of market positioning, sentiment, and more importantly, the understanding that other investors have of the investing environment. It is therefore crucial to decipher such coded messages. To begin understanding what these signals can possibly mean, we begin first by looking at "normal" directional behavior in the financial markets.

In general, as equity markets rally, there is more inflow into stocks and away from bonds. This leads to a fall in treasuries and a rise in bond yields. This in turn boosts the local currency, and many times it also lifts the correlated high-yielding carry trade crosses. Furthermore, if the local currency is commodity-dependent, that is, the currency is used for transactions in commodities, an increase in the value of that currency will lead to a fall in the value of that commodity (i.e. USD and Crude Oil). All other trade-able financial securities, are usually derivative instruments of these primary risks and have either a leveraged or muted reaction to such price movements.

This is what SHOULD happen, but in reality, it happens only under particular circumstances. When the economy is robust, when there is political stability, and when investors and consumers are both becoming less risk averse, the above noted traits generally tend to apply. For instance, the U.S. economy from the post-dot com burst until the end of the Fed tightening cycle, generally experienced these types of correlated price movements. However, the scenario quickly began to change in early 2007.

After the first large retracement in the Shanghai Composite in February of 2007, the markets began losing this rational train of thought. Instead, what we began to see was a decoupling of such sensible price action that led to some serious consequences. The first hint that things were not of the norm came when a sustained de-correlation of gasoline and crude oil prices began to be noted in the 1st quarter. As crude oil inventories fell short of demand, crude prices pushed higher, but the prices at the pump remained relatively stable. The second display of such divergence came in late August. U.S. equities no longer rallied on the back of stronger financial data. Instead, after the surprise 50 b.p. rate cut by the Fed, the markets rallied on the back of weaker financial data in the hopes that there would be more rate cuts. This led to an "artificial" recovery in the markets that pushed the Dow Jones Industrial Average above 14,000 within 3 weeks of the summer's disaster; something was obviously wrong with the picture. The markets were moving completely out of sync; the Dollar in particular was in a downward spiral. The markets legitimization of such action was that, "if economic data is disappointing, then the Fed will cut rates, so the Dollar should fall. If the data is great, then its probably inflationary, but the Fed will then have to possibly deal with stagflation, so we should still sell the Dollar." This was a lose-lose situation for Dollar denominated securities.

And most of this price action was out of fear, completely illegitimate, and extremely over-extended. The markets had changed their behavioral pattern, and had taken on a new image, one ready to move quickly for the exit should something not feel right; the game was no longer about reason, but about gut, and about speculating on the role of the government. To this moment, much of this fear has not subsided, and as a result, much volatility has come back into the markets. But what we have ahead could lead us back to a path of reason.

Should a federal program be adopted to aid the subprime and bad-credit debtor, then the Federal Reserve may not have to succumb to the demand of the equity markets. Additionally, the month of January should prove to be positive for a beaten-down Dollar as continued repatriation flows from late December re-balancing of portfolios will create demand for the greenback.

So the question is not IF the markets will recourse to a rational state of behavior, but when. If all of the hints in the market are properly analyzed, a clear shift in market behavior can be denoted. Effectively harnessing that shift is what will ultimately make the difference between you becoming a millionaire or going broke. Good luck!

- Vishal Shah

Options Workshop Slides

09/24/2007 @ 21:53:57

Hey everyone, enclosed are the slides from the introduction to options workshop. Please read them carefully, and then should you still have additional questions, contact me for any clarifications. Also, I hope to have some practice problems related to this material up in a few days. Thanks for coming out!

An Introduction to Options

05/19/2007 @ 22:14:51

This post is to serve as a quick introduction and overview of options (plan vanillas). It will be important that you grasp onto the principles listed herein because they will become foundations for going ahead with the portfolio.

An option is basically a right to make a transaction in the future for a price specified now (the strike). This can either be to buy (call) or sell (put) something. To obtain this right, you have to pay the person giving you this right (the premium). Options are often very advantageous due to their insurance-like premium structure. This allows someone who is either bullish or bearish to get in on the market without having the same exposure they would otherwise encounter in the spot or futures markets.

Let's look a little closer at Calls first. Basically, when you buy a call, you are implying that you think the market will move up but do not want to take on the risk of buying the underlying asset directly. How much does this call cost? Well, it depends, and it actually depends on many things, but there are a few influential characteristics that are frequently used to price options. Firstly is the stock price. If the stock price rises, the price of the call increases because the likelihood of the call being exercised (that is, it being IN-THE-MONEY, or ITM) rises as well. If the strike price (the price at which the call was prespecified at) rises, then the value of the call decreases because this decreases the likelihood that it will finish ITM. Volatility, time, and interest rates also affect the price of a call. Basically, any amount of increased volatility (usually measured by the greek letter vega), increases the value of the call. As the time to expiration gets closer, the value of the call declines (measured by theta). Interest rates are measured by the Greek letter Rho and it has a not-so-straightforward logic. In short, if interest rates increase, the value of the call increases. To understand this, take a basic example. Assume you wanted to buy 100,000 shares of IBM for $90 a share, or the 6-month out call with a strike of $100 for $3.50. If rates are rising, then your ability to come up with the capital needed to purchase the stock in the spot market is limited by the higher borrowing rates. To maintain the consistency in the pricing of the option, your ability to transact those 100,000 shares in today's price has to reflect your purchasing power; this is the adjustment Rho theoretically makes on the option price.

The responsiveness of a put can be measured in a similar way. If the stock price increases, then the value of the put declines (remember you want to benefit from a drop in prices in this case). If the strike price increases, then the value of the put increases because it allows you to sell at a potentially higher rate. Vega and Theta have the same effect as for calls. Rho has the reverse effect on puts as it did on calls.

Now that we have an idea of the implications for the prices of plain vanilla options, it's time to take it a step further. When looking at options and option strategies, a lot of time looking at just the "spot prices of options" is not sufficient to undertake an optimal trading strategy. Delta and Gamma, the respective first and second derivatives of the spot option price are important in understanding how you can manage risk and identify price-forecasting factors. Delta is basically the measure of how much the price of the option moves when the underlying asset moves. So a delta of 1.00 means that the option behaves much like the stock it is representing (you may have heard that Delta measures the likelihood that an option will finish ITM, but this is not true; delta is merely a measure of the correlation between the option price and the underyling). Options that resemble this figure are usually deep in the money and have a short maturity remaining. Gamma is then a measure of how much the delta of an option moves with respect to the underlying asset. You can think of this as "acceleration." Gamma usually is the highest for ATM (AT-THE-MONEY) options, and declines as you move more ITM and OTM. (Try to work on the logic for this on your own).

I recommend that everyone become familiar with the terms used above. I will be holding a crash course on basic options theory and some trading strategies sometime this summer (look out for Varun's e-mails), but by the time a prototype of the portfolio is developed, knowing this terminology will be imperative to your ability to contribute. Feel free to e-mail me at anytime with questions or comments.

Best,

Vishal Shah

Quick-Quotes

IndexCurrentChgChg(%)
Dow Jones10467.16-30.72 -0.29%
Nasdaq2251.690.00- 0.00%
S&P 5001101.530.00- 0.00%
10-Year T-Bill2.9990.00- 0.00%