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Wall Street's main indexes dropped on Tuesday after a strong start to March as
bond yields pulled back from a one-year high, while investors also looked to
cues on progress in the next round of fiscal stimulus.  .N 
    At 12:28 pm ET, the S&P 500  .SPX  was down 0.42% at 3,885.44 and the Nasdaq
Composite  .IXIC  was down 1.01% at 13,451.381.
 
 The top two S&P 500  .PG.INX  percentage gainers:
 ** Fox Corp  FOXA.OQ , up 8.7%
 ** Nielsen Holdings plc  NLSN.N , up 6.9%
 
 The top three S&P 500  .PL.INX  percentage losers:
 ** Enphase Energy Inc  ENPH.OQ , down 6.6%
 ** Target Corp  TGT.N , down 4.7%
 ** Kla Corp  KLAC.OQ , down 4.4%
 
 The top three NYSE  .PG.N  percentage gainers:
 ** NanoViricides Inc  NNVC.N , up 51.4%
 ** Hovnanian Enterprises Inc  HOV.N , up 27.4%
 ** Rocket Companies Inc  RKT.N , up 21.2%
 
 The top three NYSE  .PL.N  percentage losers:
 ** Medley LLC  MDLQ.N , down 28.6%
 ** 3D Systems Corp  DDD.N , down 15.3%
 ** Switch Inc  SWCH.N , down 15.1%
 
 The top three Nasdaq  .PG.O  percentage gainers:
 ** Communications Systems Inc  JCS.O , up 68.1%
 ** The OLB Group Inc  OLB.O , up 39%
 ** Amyris Inc  AMRS.O , up 35.6%
 
 The top three Nasdaq  .PL.O  percentage losers:
 ** Fibrogen Inc  FGEN.O , down 29.2%
 ** Inseego Corp  INSG.O , down 26.7%
 ** Clover Health Investments Corp  CLOVW.O , down 20%
 
 
 
 ** Switch Inc  SWCH.N : down 15.1%
 BUZZ- Down on Q4 revenue miss  urn:newsml:reuters.com:*:nL3N2L02KB
 
 ** STRATA Skin Sciences  SSKN.O : up 12.2%
 BUZZ- Gains on new CEO announcement  urn:newsml:reuters.com:*:nL3N2L02IE
 
 ** Aurora Mobile  JG.O : up 5.2%
 BUZZ- Jumps on partnership with Trade Desk  urn:newsml:reuters.com:*:nL3N2L02NY
 
 ** Inseego Corp  INSG.O : down 26.7%
 BUZZ- Set for worst day in nearly 7 months after Q4 loss  urn:newsml:reuters.com:*:nL3N2L02OF
 
 ** Inovio  INO.O : down 11.8%
 BUZZ- Slips on possible delay for COVID-19 vaccine trial  INO.O 
 
 ** Avita Medical  RCEL.O : up 7.4%
 BUZZ- Piper Sandler starts with 'overweight' on regenerative tech potential
 urn:newsml:reuters.com:*:nL3N2L02JC
 
 ** RedHill Biopharma  RDHL.O : down 12.8%
 BUZZ- Drops on share offering  urn:newsml:reuters.com:*:nL2N2L00UI
 
 ** FibroGen Inc  FGEN.O : down 29.2%
 BUZZ- Tumbles as FDA panel to review anemia drug application  urn:newsml:reuters.com:*:nL3N2L02SM
 
 ** Xpeng Inc  XPEV.N : down 9.7%
 ** Li Auto  LI.O : down 5.9%
 ** Tesla Inc  TSLA.O : down 2%
 BUZZ-EV stocks slip as Nio expects deliveries to slow down in China
 urn:newsml:reuters.com:*:nL3N2L02I6
 
 ** Darling Ingredients  DAR.N : up 5.4%
 BUZZ- Simmons Energy starts with 'overweight' on clean energy bets  urn:newsml:reuters.com:*:nL3N2L02SB
 
 ** Comstock Mining  LODE.A : down 9.1%
 BUZZ- Drops on equity raise to fund acquisition  urn:newsml:reuters.com:*:nL2N2L00XC
    
 ** GrafTech  EAF.N : down 5.9%
 BUZZ- Drops as top investor Brookfield sells 30 mln shares  urn:newsml:reuters.com:*:nL2N2L00Z4
 
 ** Ontrak Inc  OTRK.O : down 6.3%
 BUZZ- Cowen downgrades on limited visibility with loss of largest customer
 urn:newsml:reuters.com:*:nL3N2L02XI
 
 ** Dow Inc  DOW.N : up 2.4%
 BUZZ- Wells Fargo sees potential upside to earnings in 2021  urn:newsml:reuters.com:*:nL3N2L032I
 
 ** Sea Ltd  SE.N : up 3.5%
 BUZZ- Jumps on strong Q4, full-year outlook  urn:newsml:reuters.com:*:nL3N2L034D
 
 ** Tripadvisor  TRIP.O : up 9.1%
 BUZZ- Citi sees Plus subscription service as stock driver, upgrades
 urn:newsml:reuters.com:*:nL3N2L0366
 
 ** Eyenovia  EYEN.O : up 1.7%
 BUZZ- Up as FDA accepts application for pupil dilation agent  urn:newsml:reuters.com:*:nL3N2L0361
 
 ** Rocket Companies  RKT.N : up 21.2%
 BUZZ- Poised to rise for third straight day  urn:newsml:reuters.com:*:nL3N2L036J
 
 ** Cerecor  CERC.O : up 2.9%
 BUZZ- Jumps on positive data from COVID-19 antibody mid-stage trial
 urn:newsml:reuters.com:*:nL3N2L0394
 
 ** Petco  WOOF.O : down 0.7%
 BUZZ-Petco may see staffing challenges in hospital expansion plans  urn:newsml:reuters.com:*:nL3N2L03DZ
 
 ** Nielsen  NLSN.N : up 6.9%
 BUZZ-Nielsen shares jump on sale of video advertising business to Roku
 urn:newsml:reuters.com:*:nL3N2L03G4
 
 ** Novavax  NVAX.O : down 15.9%
 BUZZ- Falls after co hints at possible delay in U.S. emergency nod for COVID-19
vaccine  urn:newsml:reuters.com:*:nL3N2L03AR
 
 ** TransMedics  TMDX.O : up 14.8%
 BUZZ- Up as FDA to hold panel meeting for donor heart system  urn:newsml:reuters.com:*:nL3N2L03J7
 ** C3.ai  AI.N : down 14.1%
 BUZZ- Drops as brokerages cut PTs after Q3 results  urn:newsml:reuters.com:*:nL3N2L02Y3
 
 ** Twitter  TWTR.N : down 2.9%
 BUZZ- Dips after pricing $1.25 bln 0% coupon convertible deal  urn:newsml:reuters.com:*:nL2N2L01FY
    
 ** Ascendant Digital  ACND.N : down 5.6%
 BUZZ- Falls on taking Beacon Street public  urn:newsml:reuters.com:*:nL3N2L03N9
 
 ** First Republic Bank  FRC.N : down 3.5%
 BUZZ- Drops after $290 mln share offering  urn:newsml:reuters.com:*:nL2N2L01LJ
 
 ** Neuronetics  STIM.O : down 15.6%
 BUZZ- Tumbles as Q1, full-year outlook disappoints  urn:newsml:reuters.com:*:nL3N2L03P7
 
 ** Lemonade  LMND.N : down 14.8%
 BUZZ- Falls as forecast disappoints  urn:newsml:reuters.com:*:nL3N2L03Q8
 
 ** Atomera  ATOM.O : up 4.3%
 BUZZ- No small move as first customer enters Phase 4  urn:newsml:reuters.com:*:nL2N2L01QY
 
 ** Cango  CANG.N : up 11.4%
 BUZZ-  Rises after stock buyback plan of up to $50 mln  urn:newsml:reuters.com:*:nL3N2L03T2
 
 ** Amyris Inc  AMRS.O : up 35.6%
 BUZZ- Soars on Q4 revenue beat, FY21 outlook  urn:newsml:reuters.com:*:nL3N2L03T4
    
    
 The 11 major S&P 500 sectors:
 
 Communication Services   .SPLRCL   down 0.02%
 Consumer Discretionary   .SPLRCD   down 0.48%
 Consumer Staples         .SPLRCS   up 0.13%
 Energy                   .SPNY     down 0.08%
 Financial                .SPSY     up 0.02%
 Health                   .SPXHC    flat
 Industrial               .SPLRCI   down 0.28%
 Information Technology   .SPLRCT   down 1.10%
 Materials                .SPLRCM   up 0.73%
 Real Estate              .SPLRCR   down 0.78%
 Utilities                .SPLRCU   down 0.06%
 
 (Compiled by Dania Nadeem in Bengaluru)
 ((Dania.Nadeem@thomsonreuters.com;))