Just saw that my limit order to sell was activated. It sold out 3030 US$ worth of USG bonds at 101% of face value on the 7th September. Those are the same bonds I bought last September at 77% face value for 2300 US$. They appreciated substantially and gave some nice interest in the meantime. The profit, including transaction costs, with the 2300 US$ invested was 710 US$ due to bond appreciation plus 186.9 US$ in bond interests that equates to 39% in a bit less than a year.
All my USG stocks positions are also sold, I have nothing invested in the company. I was not comfortable holding the bonds with a 6% yield considering the risk and the alternative of having a Rabobank savings account that gives 2.5% in Euros. I prefer to have a riskless 2.5% Euro fixed return than a risky USG 6% yield in dollars. This contributes to reduce my dollars exposure and increases the cash available for other alternatives, like for example Dell, which I have been gradually adding to lately, including today.
For those who trade bonds this site is great: http://www.investinginbonds.com/advsearch.asp. You can input the cusip where it says corporate bonds (in my case the cusip number was 903293AR9) and see all the trades, including mine (7th Sept, sold at 16:56). The level of detail is outstanding. Another good site I use to see how much bond exposure (debt) a company has is this one: http://quicktake.morningstar.com/stocknet/bonds.aspx?symbol=usg
PD (Interactive Brokers trade log): SLD $3K USG Bond 6.3 11/15/16 IBCID46953122 101.000 USD SMART SEP 7 16:56:21 6.06811 6.02261 5.00