Updated to correct volume figures. NEW YORK ( TheStreet) -- Lehman Brothers' (LEHMQ.PK) Pink-Sheets-listed shares perked up for a third straight day Monday following last week's news of a settlement between the bankrupt securities firm and JPMorgan Chase ( JPM). Shares of Lehman, which along with those of other so-called zombie companies such as Washington Mutual (WAMUQ.PK), are widely thought to be worthless, saw a flurry of activity in August and September, as investors seemed intent on bidding up every failed company in sight. That phenomenon has largely died down, though these and other companies are still subject to spasms of activity on occasion, such as when a particularly significant court document comes to light. At Thursday's open, daily trading volumes in Lehman Brothers' shares had not cracked the 10 million mark since late October. On Thursday, however, they reached nearly 60 million then fell to 37 million on Friday. About an hour before the close on Monday, just under 18 million shares had changed hands. The activity has resulted in a higher price for the shares, which had been stuck at seven or eight cents for most of the year. They were just shy of 12 cents in late trading Monday. As a result of the settlement, Lehman will pay JPMorgan $557 million in cash, allowing JPMorgan to hold onto $7.1 billion in collateral, according to court documents. -- Written by Dan Freed in New York.