WorldCom's

(WCOM)

woes continue with negative actions by

Morgan Stanley Dean Witter

and

Goldman Sachs

. Morgan Stanley cut it to outperform from neutral and Goldman slashed its 2000 EPS estimate to $1.60 from $1.83 a share and 2001 EPS estimate to $1.45 from $1.90 a share.

Gap's

(GPS) - Get Report

earnings estimates were cut by

Prudential Securities

after the company said October's same-store sales fell 2%. The firm cut the 2000 EPS estimate to $1 from $1.11 and its 2001 EPS estimate to $1.35 from $1.50.

Upgrades

Beazer Homes

(BZH) - Get Report

: UP to buy from hold at

Credit Suisse First Boston.

Genzyme

(GENZ)

: UP to buy from outperform at

Salomon Smith Barney

.

Global Marine

(GLM)

: UPPED intermediate-term rating to buy from accumulate at

Merrill Lynch

; 2000 EPS UP to 64 cents from 60 cents and 2001 EPS estimate UP to $1.50 from $1.40.

Foundation Health Systems

(FHS)

: UP to attractive from neutral at

PaineWebber

; price target: $23.50.

Pharmacia

(PHA)

: UP to buy from market perform at

Deutsche Banc Alex. Brown

.

Ryland Group

(RYL)

: UP to buy from hold at CSFB; 12-month price target: $41 to $42.

Downgrades

Aon

(AON) - Get Report

: DOWN to market performer from buy at

J.P. Morgan

.

AstroPower

(APWR)

: DOWN to market perform from market outperform at Goldman Sachs; and DOWN to long-term attractive from buy at

Robertson Stephens

.

CareScience

(CARE) - Get Report

: DOWN to market perform from strong buy at Alex. Brown.

Ingersoll-Rand

(IR) - Get Report

: DOWN to neutral from attractive at

Bear Stearns

; 2001 EPS estimate DOWN to $3.90 from $4.20.

Nortel

(NT)

: DOWN to buy from strong buy at

SG Cowen

.