Positional spread (blue), rate of expansion (red), 1D velocity dispersion (green), and rotation rate (purple) with uncertainties versus position angle from the Galactic plane for members of λ Ori. The direction of maximum expansion is shown to be at −34° below the Galactic plane with increasing longitude while minimum expansion is in the direction of Galactic latitude. The rates of maximum and minimum expansion are different at the 5σ confidence level, making the plane-of-sky expansion of λ Ori significantly anisotropic. The 1D velocity dispersions are also anisotropic at the 8σ confidence level, with the maximum dispersion of ${1.225}_{-0.043}^{+0.048}$ kms⁻¹ found at 32° above the Galactic plane with increasing longitude, close to the direction of maximum positional spread at 24° above the Galactic plane with increasing longitude. The minimum 1D velocity dispersion is ${0.771}_{-0.026}^{+0.029}$ kms⁻¹. The rotation rates are also anisotropic at the 8σ confidence level, with the maximum rotation rate of ${0.039}_{-0.009}^{+0.009}$ kms⁻¹ found at −40° above the Galactic plane with increasing longitude, close to the direction of minimum positional spread at −64° above the Galactic plane with increasing longitude and the direction of maximum expansion. The minimum rotation rate is $-{0.055}_{-0.007}^{+0.007}$ kms⁻¹.