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The S&P 500 and the Nasdaq hit record highs on Tuesday, powered by semiconductors and megacaps, as Congress heard testimony from Federal Reserve Chair Jerome Powell, who said more "good" economic data would strengthen the case for interest-rate cuts. .N

At 11:22 ET, the Dow Jones Industrial Average .DJI was down 0.28% at 39,233.33. The S&P 500 .SPX was up 0.14% at 5,580.8 and the Nasdaq Composite .IXIC was up 0.24% at 18,447.129.

The top three S&P 500 .PG.INX percentage gainers:
** Nvidia NVDA.O, up 3.2%
** Corning Inc GLW.N, up 2.8%
** Principal Financial Group PFG.O, up 2.6%

The top three S&P 500 .PL.INX percentage losers:
** Albemarle Corporation ALB.N, down 6.7%
** PTC Inc PTC.O, down 4.8%
** Domino’s Pizza DPZ.N, down 3.7%

The top NYSE .PG.N percentage gainers:
** Myomo MYO.N, up 29%
** Jumia Technologies AG JMIA.N, up 27.2%

The top NYSE .PL.N percentage losers:
** Studio City International Holdings MSC.N, down 15.1%
** Helios Technologies HLIO.N, down 14.3%

The top three Nasdaq .PG.O percentage gainers:
** Soligenix SNGX.O, up 446%
** 180 Life Sciences Corp ATNF.O, up 72.8%
** Uniqure NV QURE.O, up 62.7%

The top three Nasdaq .PL.O percentage losers:
** Indivior PLC INDV.O, down 36.5%
** Helen of Troy HELE.O, down 30.1%
** Applied Digital APLD.O, down 22.8%

** Helios Technologies HLIO.N:down 14.4%

BUZZ- Falls after placing CEO on leave pending investigation

** Applied Digital APLD.O:down 22.8%

BUZZ- Drops on stock sale worth up to $125 mln

** Beneficient BENF.O:down 5.7%

BUZZ- Drops on stock sale worth up to $125 mln

** Principal Financial PFG.O:up 2.6%

BUZZ- Gains after Raymond James upgrades to 'strong buy'

** First Citizens BancShares FCNCA.O:up 2.3%

BUZZ- Up after Jefferies starts coverage with 'buy'

** Nextera Energy Partners NEP.N:down 1.2%

BUZZ- Falls, Raymond James downgrades to 'strong buy'

** ReShape Lifesciences RSLS.O:up 4.6%

BUZZ- Rises on all-stock merger agreement

** Chemours CC.N:up 2.93%

BUZZ- Advances after UBS upgrades to 'buy'

** Bank of America BAC.N: up 1.7%

BUZZ- Inches up after Piper Sandler upgrades to ''

** Sezzle SEZL.O:up 2.1%

BUZZ- Jumps after Northland starts coverage at 'outperform'

The 11 major S&P 500 sectors:

(Compiled by Jaspreet Singh in Bengaluru)

((Jaspreet.Singh@thomsonreuters.com))