[en] Either ATIC or Fermi-LAT data can be fitted together with the PAMELA data by three components: primary background ∼ E^−3.3, secondary background ∼ E^−3.6, and an additional source of electrons ∼ E^−γ_aExp(−E/E_cut). We find that the best fits for ATIC + PAMELA and for Fermi + PAMELA are approximately the same, γ_a ≈ 2 and E_cut ∼ 500 GeV. However, the ATIC data have a narrow bump between 300 GeV and 600 GeV which contradicts the smooth Fermi spectrum. An interpretation of the ATIC bump as well as the featureless Fermi spectrum in terms of dark matter models and pulsars is discussed