Wednesday, March 18, 2026

Stock Market Live Updates: Today’s Key Changes

The S&P 500 increased on Tuesday as Wall Street continued to build on positive momentum amid developments in the ongoing conflict in Iran. The broad market index rose by 0.7%, while the Nasdaq Composite climbed 0.6%. The Dow Jones Industrial Average added 440 points, equating to a 0.9% increase.

Investor sentiment remains heavily influenced by volatile oil prices and the implications of the Iran war. On Tuesday morning, oil prices rose by more than 1%, with the global benchmark Brent crude surpassing the $100 mark. This price surge reflects growing concerns regarding potential disruptions to energy supplies.

The rise in oil prices followed President Donald Trump’s remarks that a coalition to safeguard shipping through the Strait of Hormuz is still being considered. He indicated that some nations are hesitant to participate in a plan to escort oil tankers, yet encouraged quicker and more enthusiastic involvement from the international community. Trump stated that while some countries are already expressing interest in the initiative, others might choose not to engage.

The market’s upward trend has been bolstered by a relatively robust economy, stable inflation, and strong corporate earnings. However, Holly Mazzocca, president of Bartlett Wealth Management, cautioned that risks to economic growth are increasing. She noted that while the year started with a solid foundation, significant weaknesses in the labour market are concerning for investors.

As developments in the war continue to unfold—particularly following the reported death of Iran’s security chief, Ali Larijani, in overnight airstrikes—investors are closely monitoring the situation. What happens next will depend on both the geopolitical landscape and the responses from key market players.

Test Your Understanding

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How much do you know?

What was the percentage increase of the S&P 500 on Tuesday?
0.7%
0.6%
0.9%
1.0%
Which index rose by 0.6% on Tuesday?
Dow Jones Industrial Average
Nasdaq Composite
S&P 500
Brent Crude
How many points did the Dow Jones Industrial Average increase by on Tuesday?
440 points
300 points
500 points
350 points
What price did Brent crude surpass on Tuesday?
$90
$80
$100
$110
Who made remarks about a coalition to safeguard shipping through the Strait of Hormuz?
Joe Biden
Donald Trump
Barack Obama
George W. Bush
What has Holly Mazzocca warned about regarding the economy?
Stability
Increasing risks to growth
Strong corporate earnings
High inflation
The Nasdaq Composite increased by 0.7% on Tuesday.
The S&P 500 index decreased on Tuesday.
Oil prices rose by more than 1% on Tuesday morning.
Holly Mazzocca is the president of Bartlett Wealth Management.
The market's upward trend is influenced by stable inflation.
Ali Larijani is alive following the recent airstrikes.
The S&P 500 increased by on Tuesday.
The Dow Jones Industrial Average added points.
Oil prices on Tuesday morning rose by more than _____%.
Oil prices on Tuesday morning rose by more than %.
Holly Mazzocca cautioned that risks to economic growth are .
Brent crude surpassed the mark on Tuesday.
The market's upward trend has been bolstered by a economy.
This question is required

Test Your Understanding

Start Quiz

How much do you know?

What was the percentage increase of the S&P 500 on Tuesday?
0.7%
0.6%
0.9%
1.0%
Which index rose by 0.6% on Tuesday?
Dow Jones Industrial Average
Nasdaq Composite
S&P 500
Brent Crude
How many points did the Dow Jones Industrial Average increase by on Tuesday?
440 points
300 points
500 points
350 points
What price did Brent crude surpass on Tuesday?
$90
$80
$100
$110
Who made remarks about a coalition to safeguard shipping through the Strait of Hormuz?
Joe Biden
Donald Trump
Barack Obama
George W. Bush
What has Holly Mazzocca warned about regarding the economy?
Stability
Increasing risks to growth
Strong corporate earnings
High inflation
The Nasdaq Composite increased by 0.7% on Tuesday.
The S&P 500 index decreased on Tuesday.
Oil prices rose by more than 1% on Tuesday morning.
Holly Mazzocca is the president of Bartlett Wealth Management.
The market's upward trend is influenced by stable inflation.
Ali Larijani is alive following the recent airstrikes.
The S&P 500 increased by on Tuesday.
The Dow Jones Industrial Average added points.
Oil prices on Tuesday morning rose by more than _____%.
Oil prices on Tuesday morning rose by more than %.
Holly Mazzocca cautioned that risks to economic growth are .
Brent crude surpassed the mark on Tuesday.
The market's upward trend has been bolstered by a economy.
This question is required

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