Bonds of Swiss non-government borrowers offered higher daily excess returns ('alphas') than suggested by their sensitivities to standard risk factors over the sample period from 2007 to 2014. By contrast, comparable bonds (same currency denomination and credit rating category) issued by foreign entities did not offer significant risk-adjusted returns and exhibited markedly different sensitivities to Swiss and global risk factors. However, the positive risk-adjusted returns on Swiss bonds disappear when controlling for measures of uncertainty such as stock price volatility. Swiss bond prices rose when stock market volatility was high thus offering insurance in times of uncertainty.