The stock market ended volatile trading on Thursday with a rise in technology stocks, with the Nasdaq index closing up more than 3%, reversing a decline of more than 3% in early trading. Stocks on Wall Street were volatile in response to Russia's invasion of Ukraine.

The s & p 500 reversed its initial decline and closed up 1.5%. Late gains also pulled the Dow Jones Industrial average into positive territory, rebounding from a fall of 800 points in early trading to a rise of more than 100 points.

The tumultuous trading day coincided with Russia's invasion of Ukraine, leading to a massive sell-off in the market earlier in the day. However, the stock market experienced buying in the afternoon after the United States announced further sanctions against Russia and President Joe Biden promised to protect NATO allies in Europe.

The Nasdaq index closed up 3.3%. Earlier in the day, the index hovered in a bear market range. Large-cap stocks also rose. The s & p 500 closed at 1.5% and the Dow closed at 0.4%.

Biden said the United States and its allies will restrict Russian imports and restrict Russia from doing business in dollars, pounds, euros and yen. "Today, we have blocked four more of Russia's largest banks." He said in a televised speech.

'The new sanctions will weaken their [Russian] aerospace industry and damage their ability to build ships, and we are preparing to take more measures,'he added. And concluded: "Freedom will prevail."

In addition, a new round of sanctions will apply to more Russian elites and their families. "this will bring a serious price to the Russian economy immediately and in the long run," he said. " He added: "Putin will become a pariah on the international stage."

Cameron Dawson (Cameron Dawson), chief market strategist at Fieldpoint Private, said on Twitter: "Today's excellent performance of the Nasdaq and S & P 500s has benefited from the decline in real yields, which is caused by investors' shift to safe assets." The real yield path from now on (the risk of moving to safe assets is reduced? Will tighter liquidity lead to higher returns? ) will be critical to Nasdaq / technology / growth valuations and performance. "

Dow (DJI) was the weakest performer, with shares of Goldman Sachs and United Health (UnitedHealth) falling, which is also facing regulatory problems.

From the perspective of the industry, 7 of the 11 industries have made positive progress, led by (Info Tech and Communications) in the information technology and communications industries. The price of consumer goods fell to the bottom.

"President Putin's decision to escalate military confrontation to war shows that he is willing to accept short-term economic pain in order to achieve long-term geopolitical goals," said UBS (UBS).

One of the key questions facing the market is whether this will prompt European and NATO countries to import less energy from Russia. So far, there is no political will to do so, and most economies are already struggling under huge inflationary pressures.

Treasury yields have also fluctuated. The yield on the 10-year note closed at 1.96 per cent, while the yield on the two-year note rose 3 basis points to 1.54 per cent.

The chances of the Fed raising interest rates by 50 basis points in March have fallen to 13 per cent.

The VIX index, known as an indicator of fear, is still high, but closed below 30.

The dollar rose. West Texas Intermediate (WTI) broke through $100 a barrel for the first time since 2014, but then fell back. The price of gold is close to its highest level in more than a year.

UBS listed five ways to allocate its portfolio.

Among active stocks, Moderna was the biggest gainer since S & P reported earnings. NetApp was the weakest after the results were announced.