The S&P 500 closed above 7,398 on Friday. The Nasdaq hit its highest level ever. The question now is how long the runway lasts.

American financial markets ended the week in record territory, driven by a labor market that surprised almost everyone, a technology sector posting profits at historic margins, and investor sentiment that has remained more resilient than most analysts had projected heading into spring.

Friday’s session closed with the S&P 500 advancing 0.84% to settle at 7,398.93, a new all-time high. The Nasdaq Composite surged 1.71% to reach 26,247.08, also a record close. The Dow Jones Industrial Average added a modest 12 points to finish at 49,609.16. Taken together, all three major indexes posted weekly gains, extending a winning streak that now spans six consecutive weeks, the longest sustained rally for the S&P 500 and Nasdaq since 2024.

The catalyst that unlocked Friday’s move was the April jobs report. The U.S. economy added 115,000 nonfarm payroll positions last month, nearly double the consensus forecast of 65,000, while the unemployment rate held steady at 4.3%. For investors who had spent weeks bracing for deterioration in the labor market, the number read as a genuine reprieve. Chris Zaccarelli, chief investment officer at Northlight Asset Management, put it plainly, the economy is performing better than the pessimists predicted, and despite meaningful headwinds, the core data continues to expand.

Underlying the market’s confidence is a corporate earnings season that has delivered beyond expectations. S&P 500 companies reported a blended net profit margin of 13.4% in the first quarter of 2026, the highest on record since FactSet began tracking that metric in 2009. The technology sector has led the way, posting a Q1 net margin of 29.1%, sharply higher than the same period last year. Alphabet surged roughly 34% in April alone on the back of strong cloud, advertising, and Waymo results. The AI investment thesis, so heavily debated in prior quarters, is now producing auditable results in actual earnings reports, and the market is responding accordingly.

Not every signal is clean, however. Oil remains elevated near $100 per barrel for Brent crude, pushed higher by escalating military exchanges in the Persian Gulf. JPMorgan economists warned this week that demand destruction is coming as consumers adjust to sustained energy price pressure, a dynamic that will eventually feed into transportation costs, consumer spending, and inflation data. The Federal Reserve’s path forward remains uncertain, with interest rates staying higher for longer than many had hoped a year ago.

Valuation is the other variable worth watching. The S&P 500’s forward price-to-earnings ratio sits at 20.9, above both the five-year average of 19.9 and the ten-year average of 18.9. Markets are pricing in continued strength. If earnings disappoint or geopolitical conditions deteriorate sharply, the correction from elevated levels could be swift. For now, the bulls remain in command. The question, as always, is how long the momentum sustains itself against the friction building underneath.