Today's market gets set to absorb the heat of a fresh batch of quarterly announcements as we mosey on into the dog days of earnings season.

Batting cleanup in today's earnings lineup is long-time (but recently walloped) telecom

AT&T

(T) - Get Report

, which was recently

upgraded to long-term buy by both

J.P. Morgan Chase

and

Morgan Stanley Dean Witter

.

Shares of Big T traded down 2.6% to finish at $23.31 on Friday.

Other companies sharing the spotlight today are tire-maker

B.F. Goodrich

(GR)

, copier king

Xerox

(X) - Get Report

and

AFLAC

(AFL) - Get Report

(you know, the company with that God-awful squawking duck parading around shilling supplemental insurance).

Shares of AFLAC ended Friday's session down 0.7% at an even $62.

With no economic releases slated for today, be sure to check the list below of recent IPOs whose lockup periods have expired.

Expected Earnings Reports

This table includes S&P 500 companies only. Dates are as expected according to First Call/Thomson Financial, and may change. The full week's earnings calendar is published separately.

*Possibly reporting.

IPO Lockups Expiring

(TheStreet.com's

Ben Holmes, who heads

TSC's

ipoPros.com subsidiary, keeps a close eye on lockup expirations every week. For more on lockup expirations and why they matter, check out Holmes' primer on the subject. The full current lockup expiration list is published separately. For information on IPO pricings, filings and aftermarket activity, plus a calendar of upcoming IPOs, check out

TheStreet.com's

IPO data section.

)