# S&P 500, Nasdaq Close at Records on Tech Rally, Iran Hopes

**Published:** 2026-05-28T20:20:00.000Z  
**Topic:** S P 500  
**Sentiment:** bullish  
**Publisher:** TrendWatcher — https://www.trendwatcher.in/article/8beae8b3-d593-4d7a-b424-d2ea88ea4867

The S&P 500 and Nasdaq Composite closed at record highs Thursday, driven by a tech rally and optimism over a reported U.S.-Iran ceasefire agreement.

The S&P 500 and Nasdaq Composite closed at record levels on Thursday, bolstered by a resurgence in technology stocks and reports of a potential diplomatic agreement between the U.S. and Iran [1]. The broader market gained ground as traders weighed positive earnings updates against new inflation data, pushing both indexes to intraday all-time highs before the closing bell [1].

**Key takeaways**
*   The S&P 500 rose 0.58% to 7,563.63, while the Nasdaq Composite jumped 0.91% to 26,917.47, both setting record closing highs [1].
*   Tech stocks led the rally, with Snowflake soaring 36.5% following a strong earnings outlook and a $6 billion spending plan with Amazon Web Services [1].
*   Markets reacted to a report claiming U.S. and Iranian negotiators agreed to a 60-day ceasefire extension, though final approval from President Donald Trump is pending [1].
*   The personal consumption expenditures price index rose 0.4% in April, a softer reading than the 0.5% economists expected, while the annual rate held at 3.8% [1].

## Tech sector drives market records
Technology stocks spearheaded the market's upward trajectory, with cloud-based data platform provider Snowflake posting its best day ever. Shares surged 36.5% after the company issued optimistic fiscal second-quarter guidance and reported beating expectations on both revenue and earnings for the latest quarter [1]. The company also announced a plan to invest $6 billion in Amazon Web Services over the next five years [1]. This momentum lifted other enterprise software and chip stocks; the iShares Expanded Tech-Software Sector ETF (IGV) rallied 2.8%, while memory stocks like Sandisk rose 3.3% [1]. Chip giants also saw significant gains, with Qualcomm and Advanced Micro Devices jumping 4.2% and 4.6%, respectively [1].

## Geopolitical news and economic data
Investor sentiment was further supported by geopolitical developments, following a report from Axios citing U.S. officials and a regional source [1]. The report stated that U.S. and Iranian negotiators had agreed on a 60-day memorandum of understanding to extend a ceasefire, with further negotiations planned regarding Iran's nuclear program [1]. However, the report noted that President Donald Trump has not yet given the agreement his final approval [1]. Oil prices reacted to the news, with West Texas Intermediate crude futures settling up 0.3% at $88.90 a barrel and Brent futures ticking down 0.6% to $93.71 a barrel [1]. Earlier in the session, prices had been higher following reports of military strikes in the region [1]. Additionally, the latest inflation reading provided some relief, as the Commerce Department reported a 0.4% seasonally adjusted increase in the personal consumption expenditures price index for April, softer than the 0.5% forecast by economists [1].

## Why it matters
The record closes highlight the market's current sensitivity to both corporate performance in the artificial intelligence sector and broader geopolitical stability. The softer-than-expected inflation reading suggests pricing pressures may be easing, offering traders hope despite the annual rate remaining above the Federal Reserve's 2% target [1]. Meanwhile, the potential for a ceasefire extension could influence market volatility and energy prices in the coming weeks, pending final approval from U.S. leadership [1].

## Sources
1. CNBC — [S&P 500 and Nasdaq close at new records, lifted by tech rally: Live updates](https://www.cnbc.com/2026/05/27/stock-market-today-live-updates.html)
2. Economictimes — [Nasdaq Live Today - Find Nasdaq share price, Nasdaq Latest News, Nasdaq stock price updates | ETMarkets](https://economictimes.indiatimes.com/markets/nasdaq)

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Cite as: TrendWatcher, "S&P 500, Nasdaq Close at Records on Tech Rally, Iran Hopes", https://www.trendwatcher.in/article/8beae8b3-d593-4d7a-b424-d2ea88ea4867