<div id="readability-page-1">Oil prices and stock markets worldwide kept swinging with uncertainty about what will happen with the Iran war. The S&amp;P 500 swiveled between gains and losses in the morning before ending 0.1% lower Monday, its second straight drop since setting an all-time high last week. The Dow Jones Industrial Average added 0.3%, and the Nasdaq composite fell 0....</div>

.DJI

.IXIC

.SPX

<p>On May 18, 2026, major US stock indexes experienced volatility amid uncertainty regarding the Iran war. The S&P 500 closed 0.1% lower, marking its second consecutive drop since reaching an all-time high. The Dow Jones Industrial Average rose by 0.3%, while the Nasdaq composite saw a decline.</p>

- Oil prices and global stock markets showed volatility due to uncertainties surrounding the Iran war. 
- The S&P 500 fluctuated, eventually closing 0.1% lower, marking its second consecutive decline since reaching an all-time high. 
- Conversely, the Dow Jones increased by 0.3%, while the Nasdaq composite experienced a decline.

Dow Jones Industrial Average

NASDAQ Composite Index

S&P 500

Proshares Ultrashort Dow30 ETF

iShares Core S&P 500

Pro UltrPro Shrt Dow30

First Trust NASDAQ-100 Equal Weighted

Invesco S&P 500 Eq Wgt ETF

Invesco Nasdaq 100 ETF

Guggenheim DJIA Ave Div

Fidelity Nasdaq Composite Index ETF

Proshares UltraPro Short QQQ ETF

ProShares Ultra QQQ

Direxion S&P 500 Bear 1X

iShares Dow Jones US

ProShares Shrt QQQ

Proshares UltraPro QQQ

Pro UltrPro Dow30

Short Dow30 Pro

SPDR Djia

Global X Nasdaq 100 Covered Call ETF

ProShares Ultra Dow30 ETF

SPDR S&P 500

Invesco QQQ Trust

VG S&P 500

How major US stock indexes fared Monday 5/18/2026