Investors who have embraced the "buy the dip" strategy in 2025 have been handsomely rewarded, with the S&P 500 delivering its strongest post-pullback returns in over three decades.

S&P 500 Posts Best Post-Dip Gains Since 1993

According to research from Bespoke Investment Group, the S&P 500 has gained an average of 0.36% in the trading session following a down day so far in 2025, as quoted on Yahoo Finance. The only year with a comparable performance was 2020, which saw a 0.32% average post-dip gain.

Tariff Rollbacks: Key Driver of 2025’s Rebound Rallies

A recent example came on May 27, 2025 when the S&P 500 surged more than 2% after falling 0.7% in the final session before the holiday weekend. The rally was sparked by President Trump’s decision to scale back huge previously threatened tariffs on EU —a recurring catalyst behind many of 2025’s rebound rallies.

Factors to Favor Wall Street Rally Ahead

Below we highlight a few factors that could boost Wall Street ETFs higher ahead.

Trade Court Blocks Trump Tariffs

On May 28 evening, a panel of judges from the US Court of International Trade ruled against key elements of Trump's trade agenda. The court struck down global tariffs imposed under emergency powers, calling them unlawful. While the decision is a setback for Trump's policies.

SPDR Dow Jones Industrial Average ETF Trust DIA added 1.1% premarket on May 28, while SPDR S&P 500 ETF SPY advanced 1.5%, Invesco QQQ Trust QQQ gained 2% and iShares Russell 2000 ETF IWM jumped 1.9%.

NVIDIA Earnings Impress Despite China Challenges

NVIDIA NVDA beat revenue expectations but missed on adjusted earnings per share (EPS), citing the impact of a US government ban on the sale of its H20 chips to China. The company warned it could lose as much as $8 billion in sales next quarter due to the restrictions.

Despite this, NVIDIA’s stock surged 6.3% in premarket trading on May 28. During the earnings call, CEO Jensen Huang criticized the US chip curbs, arguing they incentivize innovation among Chinese competitors and undermine the U.S. position. “China’s AI moves on with or without US chips,” Huang said. “The question is whether one of the world’s largest AI markets will run on American platforms.”

Inside Big Tech Resilience

NVIDIA’s performance gave Wall Street renewed hope that major tech companies can weather the uncertainties surrounding Trump’s trade measures, even as export restrictions create new challenges.

While the tech sector is still recovering from a pullback in February—triggered in part by market reactions to low-cost AI DeepSeek—this hasn't derailed investor optimism. Instead, the pullback caused some valuation corrections and set the stage for renewed focus on U.S. tech leadership and AI investment.