Investors are likely to start off the week digesting profit figures today, with an eye on European bourses after the first-quarter reporting season on the Athens bourse wound up last week. National Bank was among the last of the blue chips to unveil profit data late on Friday, when it announced net profits fell 21 percent to 317 million. The figure beat analysts’ expectations. Investors will also be looking for clues about Greece’s banking market when National Bank, the country’s largest lender, holds its annual general meeting of shareholders tomorrow. On Friday, the Athens bourse’s benchmark general index ended at 2,327.47 points, lifting gains for the month to 13 percent. Analysts said the benchmark general index’s next key resistance level is expected higher at around 2,500 to 2550 points, after it reached an intra-session high of 2,355 points on Friday.