Market Preview: Stay for May?

Morning reports are due from Arch Coal(ACI) , Archer-Daniels-Midland(ADM) , Avon Products(AVP) , Automatic Data Processing(ADP) , Becton, Dickinson & Co.(BDX) , Biogen Idec(BIIB) , BP plc(BP) , Bruker Corp.(BRKR) , Corn Products(CPO) , Cummins(CMI) , DineEquity(DIN) , Domino's Pizza(DPZ) , Ecolab(ECL) , Fresh Del Monte Produce(FDP) , Genesee & Wyoming(GWR) , Harris Corp.(HRS) , Hospira(HSP) , Kulicke & Soffa Industries(KLIC) , Legg Mason(LM) , LendingTree(TREE) , LoJack(LOJN) , Marsh & Mclennan(MMC) , Martin Marietta Materials(MLM) , Office Depot(ODP) , P.F. Chang's China Bistro(PFCB) , Radian Group(RDN) , Spirit Airlines(SAVE) , Thomson Reuters(TRI) , TRW Automotive(TRW) , Valero Energy(VLO) , and ViroPharma(VPHM) .

The late roster features Amdocs(DOX) , Bankrate(RATE) , Broadcom(BRCM) , Career Education(CECO) , CBS Corp.(CBS) , Chesapeake Energy(CHK) , Consolidated Graphics(CGX) , Fiserv(FISV) , General Growth Properties(GGP) , Genworth Financial(GNW) , Jazz Pharmaceuticals(JAZZ) , John B. Sanfilippo & Sons(JBSS) , Kforce(KFRC) , Kindred Healthcare(KND) , Nutrisystem(NTRI) , Papa John's International(PZZA) , Peet's Coffee & Tea(PEET) , Plantronics(PLT) , Sturm Ruger & Co.TICKER TYPE="EQUITY" SYMBOL="RGR"/>, True Religion Apparel(TRLG) , UnumProvident(UNM) , and WebMD(WBMD) .

Tuesday's economic calendar features the Institute of Supply Management's manufacturing index for April at 10 a.m. ET with the consensus calling for a slight decline to 53, according to Briefing.com; construction spending for March at 10 a.m. ET, estimated at a 0.5% increase; and auto and truck sales for April due in the afternoon.

--Written by Michael Baron in New York.