In yesterday's New York Stock Exchange trading, Exxon shares were unchanged at $56.875.

They said the transaction would probably be an exchange of Mobil shares for Exxon shares.

Exxon shares rose 3/8, to 58 1/4.

The effect of the verdict was immediately felt on the stock market, where Exxon shares fell $2.625, to $59.50, by the close of trading.

Exxon shares lost 75 cents today to close at $47.875 on the New York Stock Exchange.

Exxon shares closed unchanged at $82 after having slipped as low as $81.50 earlier in the day.

Exxon shares rose 2.6 percent for the week.

Under the deal, investors will receive 1.32015 Exxon shares for each Mobil share; the stock prices almost exactly reflect that formula.

Exxon shares fell 12.5 cents, to $55.375, yesterday.

Exxon shares fell 1 percent, to $62.42 a share.