MEONHOMES,
I had wondered whether you wished to accomplish the more intricate top shape in your screenshot, presumably the existing one (using another font) inspiring you, with its upward curve at the ends of the upper part, but rereading your answer to Anubhav,
"Thank you, that is close to what I want but if you notice in the example, the letters in the middle are smaller and get taller towards the ends, whereas, with the Arch feature all letter heights are the same. Thx!"
I now believe that you are looking for a simpler appearance with different rounding of top and bottom.
In that case you can obtain it with one of two other Warp effects after a bit of preparation, and probably with the need for adjustment until you get it exactly as you wish; some of the members of the Warp family inherently ensure upright letters.
You can, shown with values that roughly gives you the same letter height at the middle:
1) Create the live Type with the desired height at the middle, and Outline the Type;
The images below show transformation numbers;
2) Increase the height of the text (shown as 160% of the original text);
3) Create a rectangle round the text (shown in red at 220% of the original text);
4) Increase the height of the rectangle upwards (shown in red at 3 x 220% = 660% of the original text, or shown in dashed red 1.5 x 220% = 330%);
5) Group the rectangle and the text and apply Effect>Warp>Bulge or Effect>Warp>Arc Lower with a negative value (shown at -45% Bend);
6) Object>Expand Appearance, Ungroup, and remove the warped rectangle (shown beside the original text).
Remember to make backups and use Undo to get back and redo.
In this case with both upper and lower rounding bending downwards at the ends, Effect>Warp>Arc Lower can be used with half the height of the rectangle and give the same appearance so it is simpler; with opposite bends, Effect>Warp>Bulge is needed so it is more flexible.
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