The ornamental design for a stand for monitor, as shown and described.
FIG. 1 is a perspective view of stand for monitor, showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a right side elevation reference view thereof in an alternative position, wherein the broken lines showing the stand for monitor with a monitor in an alternative position are for illustrative purposes only and form no part of the claimed design.
The broken-line disclosure in the views is to show environment and form no art of the claimed design.