Unusual Swings in Stock Prices at Pacific Capital
Pacific Capital’s share price soared on Friday, creating a pattern that should provoke some questions.
Pacific Capital, a small bank headquartered in Santa Barbara, California, jumped 48 percent on Friday, from 87 cents per share to $1.29. It was the largest jump since November 23, when share prices finished at $1.25. That wrapped up a dramatic week, when share prices increase 86.5 percent over four days. That has turned out to be fleeting gain. This morning, Pacific Capital’s shares dropped 28 percent in the first 19 minutes of trading.
Both weeks have one thing in common – the expiration date for equity. This is a link to the calendar of options expirations in 2009. This link provides a good explanation of how options work. Equity options end after the third week of the month. Traders close out positions over the weekend, meaning that option positions are either in or out of the money at Friday’s close.
Here is one scenario of how a trader might make money on options for his or her financial institution. An options trader could sell puts or buy calls. Buyers of puts would expect that share price to drop. These instruments hold two kinds of value – intrinsic and time. The intrinsic value is the difference in the contract price (i.e. $2.50) and the current market price. The time value is based on an estimate of the expected value of the remaining time.
A holder of a $2.50 put in PCBC was sitting pretty last week - each put would have been worth about $1.75 on Thursday when the shares were at 86 cents with one day to go. That value evaporated on Friday, though, as puts ultimately exchanged at $1.08. The same kind of change could happen on the call side.
Traders could make money two ways in that scenario. For one, he or she would make a transactional profit on selling puts or calls. Demand for puts and calls increases with volatility. Second, there would be money to be made on the change in value of options. Those $2.50 puts, for instance, sold at $1.50 or more for much of the month.
It takes some wealth for one institution to change the price of a stock. That said, it is much easier with a small company. If the hypothetical trader was working for an institution with substantial wealth, it would be possible. That options trader could work with the equity traders. The buyer would have to keep on buying, but the “buy” would be relatively little. The 7.6 million shares transacted in PCBC on Friday probably cost less than $10 million overall. The ability to change the price in equity is not something that most investor have, but it is well within the reach of corporate or institutional investors.
The buying institution would take some risk, of course, that they would be buying shares at an elevated price. The only escape, of course, would be to dump the newly acquired shares while the price was still high. That is exactly what is happening this morning. The shares have given away almost half their gains, on a volume that has exceeded PCBC’s daily average volume before noon.
I cannot track this next bit of information, but traders were reporting that a single block trade of 2.1 million shares went in just before close of trading on Friday. As well, three trades accounted for 35 percent of all volume in PCBC.
Why this Matters
There are several reasons why these fluctuations matter, and those reasons reach into the interests of several different parties. First and foremost, Pacific Capital is a victim in this scenario. Their share price matters as they struggle to raise regulatory capital.
Pacific Capital’s deposits are also at risk. The fluctuation in equity price influences regulatory capital. Pacific Capital is already undercapitalized. With manipulation, that basis is vulnerable. If the equity is threatened, it enhances the prospect that the bank will be taken over. While the holders of guaranteed deposits would be made whole by the FDIC, it is taxpayers that are ultimately on the hook for that outcome. The fancy of traders is our loss.
These are dramatic swings for a small company such as Pacific Capital. It has about $52 million in market capitalization. In this arena, a large trader (s) could easily use market size to influence short-term prices. That is what could be happening. On Friday, about 7.6 million PCBC shares were traded. That is a very high volume. (more…)

