Stock Exchange Index down marginally in moderate trading yesterday.

The Index slipped 0.25 points to close at 965.87 on volume of 45,295 shares worth $457,976.25.

Commercial Bank fell 38 cents to close at $4.13 and Argus slipped 25 cents to $4, offsetting gains by the Bank of Butterfield, up 13 cents to $10 -- its high for the year -- and Kentucky Fried Chicken, which jumped 50 cents to $4.