Negative sign of collector current (Ic-Veb characteristic curve) of pnp BJT on LTspice
When you plot the currents, make sure you notice which way the icon is pointing when you hover it over the pin of the device for the current you are plotting. The way the current points is arbitrary and so attention is needed to make sure the understanding of the current is aligned with the direction of the simulation.

If it isn't in the direction you would like it, add a negative sign in front of the current by right clicking on the current above the graph and editing the equation.