In my search for potential shorts, I have focused on two main qualities:
1) High leverage (Debt/Equity)
2) Exposure to local economies most likely to be hard hit due to recent macro issues (e.g. Florida, Southern California)
REIT companies with exposure to hard hit aspects of the economy are likely to struggle with lower rents, high vacancy rates, and other issues that should reduce their NOI (Net operating Income). The more a REIT is leveraged, the more macro issues are unlikely to affect their bottom line and the quality of their balance sheet. In some cases, such as Maguire (MPG), it seems as though these issues could very well affect their solvency.
Maguire Properties Overview
Maguire Properties is a highly-levered commercial real estate REIT with properties concentrated in Southern California. The general thesis here is that it is looking increasingly likely that MPG will either be forced to cut their dividend, to continue to liquidate existing properties, issue a dilutitive equity offering (if they can get anyone to buy it), or sell the company. The company needs a friendly debt market to continue operating as it is, paying a dividend and continuing developement of its projects. I believe the most likely outcome is sale of the company, either by choice if they do it soon, or by mandate if they don't. At these prices, I think the downside of a short is limited at NAV, and the upside could be 30-80% depending on how quickly and how much the MPG's assets erode in value.
MPG has some serious balance sheet issues. Let's take an abbreviated look at some key numbers for MPG (numbers in million):
Market Cap: $1,212
Net Debt: $4,817
Enterprise Value: $6,029
Total Equity (including Depreciation): $6,353
Total Debt: $5,492
Debt/Equity: 86%
The big issue here--outside of the enormous interest payments and consistent reliance on borrowings to fund the dividend and operations--is that a relatively small impairment of the equity (in this case, about 14% at book) would entirely wipe out the equity.
The above is a proxy value for the equity based at book (cost). But in reality the value of the equity is always shifting. Here's where things get interesting--analysts are mostly sour on the stock, due to macro issues, poor operating performance, and leverage. Most analysts, however, still see downside protection in the NAV, which most peg at ~$30/share. Management rejected an offer in late 2006 at between $42-44/share, and reportedly tried to engineer a buyout of the company at $60. Though there are several ways to value NAV, the most accepted analysis is the Net Operating Income of the properties divided by the cap rate, which is the discount rate applied to the operating income to get a total value of the cash flows. Then you subtract the debt, and divide by the total outstanding shares to get the NAV/share of the equity. Let's take a look at historical cap rates:

Keep in mind that lower cap rates mean a higher implied NAV value. Cap rates were recently at historical lows, due to higher expectations for underlying asset appreciation, lower cost of borrowing, and the availability of more leverage, all of which made the actual performance of the property as an income producing asset relatively less important. These conditions, which existed as recently as a few weeks ago, are gone, and it does not look like they are coming back. In an increasing cap rate environment, that equity cushion is easily wiped out. What happens if cap rates rise to anything approaching historical levels? Below is an analysis of what happens to NAV when you change the cap rate assumptions (assuming NOI of $324M & value of other assets of $1,602M):
Cap Rate NAV/share
5% $44.54
5.25% $38.89
5.50% $33.75
5.75% $29.06
6.00% $24.76
6.25% $20.81
6.50% $17.15
6.75% $13.77
7.00% $10.63
7.25% $7.71
7.50% $4.98
7.75% $2.43
8.00% $0.04
At a cap rate of about 8% (well within historical norms, especially in tough real estate markets), the equity gets wiped out. Perhaps noticing these trends, several activist investors have recently gotten involved to try to force a sale of the company while cap rates are still somewhat favorable. It remains to be seen to what degree they will be successful, and what cap rate they can negotiate on a transaction. With the uncertainty in the market right now, California's poor economic outlook, and MPG's poor capital position, I would peg the odds of a deal as relatively small.
I value the upside potential in a short by taking a look at four scenarios, which basically involved valuing the company at 4 different cap rates and assuming an eventual sale of the company @ NAV.
Scenario Activist successful Forced Sale Forced Sale Forced Sale
Probability 20% 30% 30% 20%
Cap Rate 5.75% 6.5% 7.0% 8.0%
NAV @ sale $29.06 $17.15 $10.63 $0.04
Dividends 0 $1.60 $2.40 $3.20
Total Return $29.06 $18.75 $13.03 $3.24
Current Price $25.68 $25.68 $25.68 $25.68
Return -13% 27% 49% 87%
Prob Weighted 5.81 5.63 3.91 0.65
Probability Weighted Return: 38%
With minimal downside risk and strong potential upside, I think the risk/reward here looks rather favorable. Catalysts include increasing cap rates, commercial real estate turmoil, increasing credit spreads and risk aversion, dividend suspension, and decreasing occupancy rates and thus NOI.
Note: Author is not currently short MPG, but likely will be soon. Not a recommendation to buy or sell shares. Numbers herein are accurate to the best of my abilities, but should be double checked. Do you own DD.