Repeats from Friday with no changes to text. Updates chart

** S&P 500 .SPX rises 1.9% amid tariff whiplash .N

** Dow .DJI gains 1.6%, Nasdaq Composite .IXIC up 2%

** Earlier in week, S&P 500 index leaps after Trump tariff reprieve, and then Nasdaq pops as court blocks Trump's proposed tariffs, before appeals court reinstates

** Stocks then chopped around into Fri. Still, for the month, SPX up 6.2%, best May since 1990, Nasdaq advances 9.6%, best May since 1997, Dow up 3.9%, best May since 2020

** U.S. 10-Year Treasury yield US10YT=RR, now around 4.40%, on track to snap four-week run of gains

** In the end, nearly every sector finds its bearings: Real Estate and Technology most sturdy, while just Energy wobbles

** Tech .SPLRCT ascends 2.4%. Nvidia NVDA.O rises on Thurs after qtrly sales beat as hit from China export curbs not as bad as feared, and chipmakers, AI-linked stocks climb on tariff block

NVDA gains help pull up the semiconductor index .SOX; SOX lifts >1%

Though PC maker HP Inc HPQ.N sinks after cutting annual profit forecast as tariffs weigh

** Healthcare .SPXHC adds 1.8%. Medical device maker Hologic HOLX.O jumps after report of rejected $16 bln buyout offer from private equity firms TPG TPG.O and Blackstone BX.N

Conversely, Regeneron REGN.O slumps after closely watched smoker's lung drug fails trial

** Consumer Staples .SPLRCS up 1.8%. Costco COST.O said pulled forward some shipments to lower tariffs impact, and would only raise prices as a "last resort", stock rises

** Consumer Discretionary .SPLRCD up 1.7%. Ulta Beauty ULTA.O soars on raised profit outlook after qtrly beat

Tesla TSLA.O eases from 16-week high on Fri; Musk-Trump hold news conference as the billionaire steps away from the Trump administration. TSLA gains 2% on the week

On the flip side, Best Buy BBY.N down after cutting annual forecasts on tariff uncertainty

** Materials .SPLRCM rise 0.8%. However, gold miners such as Newmont NEM.N fall as Trump delays EU tariffs, dousing demand for safe haven gold XAU=

** Energy .SPNY sags 0.4%. Sector falls on possible OPEC+ oil output hike O/R. Natgas companies down on higher output, lower flows to LNG export plants. EQT EQT.N off ~1% for the week

** Meanwhile, individual investor bears bounce back, and, so, about that sell-in-May and go away idea ...

** SPX performance YTD:

(Lance Tupper and Terence Gabriel are Reuters market analysts. The views expressed are their own)

((lance.tupper@tr.com ; terence.gabriel@tr.com))