This morning,

Goldman Sachs

upgraded four chemical companies to market outperformer from market performer. The firm boosted

Millennium Chemical

( MCH),

Polyone

(POL) - Get Report

,

Georgia Gulf

(GGC)

and

Lyondell

( LYO).

Goldman said it expects the companies' depressed margins to improve in the coming year.

Upgrades

Aegon

(AEG) - Get Report

: Price target UP to $51 from $45 at

Banc of America

.

Insight Communications

(ISSI)

: UP to outperform from neutral at

Morgan Stanley Dean Witter

.

Nationwide

( NFS): price target UP to $61 from $55 at Banc of America.

Protective Life

(PL)

: price target UP to $34 from $30 at Banc of America.

Downgrades

F5 Networks

(FFIV) - Get Report

: DOWN to attractive from buy at

Bear Stearns

; DOWN to neutral from strong buy at

Dain Rauscher Wessels

.

Nice Systems

(NICE) - Get Report

: price target DOWN to $40 from $75 at

Lehman Brothers

.

Sterling Bancshares

( SBIB): DOWN to market perform from strong buy at

Legg Mason

.

Vascular Solutions

(VASC)

: DOWN to neutral from buy at

Salomon Smith Barney

.

Initiation

FBL Financial

(FFG) - Get Report

: NEW buy at

A.G. Edwards

; price target: $21.