Today is Cinco de Mayo, but investors in Mexican securities probably won’t be whipping out their party sombreros and tequila any time soon. The dreaded swine flu (or H1N1 flu, for the politically correct crowd) is hitting Mexico hard, costing the country $100 million a day, according to some experts. This spells trouble for the Mexican Bolsa Index, which lost 3.3 percent when news of the flu broke on April 24, according to Robert P. Smith, founder of Turan Corporation, a firm specializing in trading emerging markets’ sovereign debt. (more…)