Wall Street sell-off is actually being caused by warped expectations vs reality, says JPMorgan strategy boss

When Donald Trump won the election JPMorgan Chase CEO Jamie Dimon said bankers would be dancing in the street . Why? There was a business-friendly, pro-growth, regulation-lite, tax-opponent president soon to be in the White House.

Or so they thought.

In reality, they've got an Oval Office ramping up tariff policy—which many are beginning to frame as a tax —working hand-in-hand with cost-cutting austerity measures in the form of the Department of Government Efficiency .

Moreover, they've got a White House that appears unbothered by market disruption and relatively agnostic about whether or not its policies will prove recessionary or inflationary.

This chasm between expectation and reality is at the root of Wall Street's woes, JPMorgan Private Bank's U.S. head of investment strategy, Jake Manoukian , tells Fortune in an exclusive interview.

It's also taken analysts a couple of attempts to learn this lesson: Already , Deutsche Bank chided investors for not taking Trump's tariff threat seriously and instead pricing in a more minor blip.

But after last week's near-market correction and with the S&P500 down a total of 8% this month , analysts are beginning to question how long the volatility will prevail.

"So far the first ... 50 days of Trump is almost the opposite of what the expectations were in November, December, January," Manoukian said. "That came at a time when the S&P500 was trading at 22 times forward P/E multiple, baking in a lot of enthusiasm around an acceleration in corporate earnings and a re-engagement of capital market activity.

"It's the confluence of the disconnect between the expectations and reality that needs to be realigned, and that's manifesting itself through a selloff in the S&P500 that's been concentrated in some of the most popular, highly valued names."

While some investors may be watching the headlines and wringing their hands, those bullish on the U.S. are seeing the downturn as an opportunity. BlackRock CEO Larry Fink, for example, said he views current market conditions as a chance to snap up stocks at a reduced rate.

While this snap back won't happen "rapidly" Manoukian warned, there are green shoots already appearing that could boost confidence: A potential resolution to the universal tariffs question in early April, a Jobs Act extension progress making its way through Congress, a policy for expensing structures investments, and work being done to reduce the 10-year yields rate.

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