Data-Crunching Wall Street Skeptics Sit Out the Turnaround Trade

(Bloomberg) -- Michael Mullaney’s mind was elsewhere during the market rebound this week, even as stocks surged, borrowing costs for Corporate America eased and Treasuries settled down.

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Instead, the head of research at value-investing firm Boston Partners found himself checking and re-checking economic data that he fears show early signs of the damage already caused by Donald Trump’s trade war. Signals like dwindling Los Angeles shipping volumes, declining tourism-related travel and shrinking credit-card receipts in key consumer sectors.

His cautious stance runs counter to his peers plunging back into risk assets — relieved by signals from both Trump and Treasury Secretary Scott Bessent that the White House appears to be easing its muscular posture against top economic partners.

“This is not going to go away in 90 days,” says Mullaney, who helps oversee $110 billion. “There’s still going to be significant impact on economic activity no matter where these tariff levels actually settle out.”

While a full-on market meltdown may have been averted, he’s holding cash, worried the fallout from the trade hostility may be too entrenched to avert. Time will tell if the will to caution is the correct one — or just another example in the long history of skeptics getting clobbered when American markets shake off malaise and rebound.

Favoring cash can be costly in weeks like the one just finished, in which credit, stocks and Treasuries posted their best in-tandem run-up of the year. Bitcoin surpassed $95,000, leading the rebound in risk assets. Risk premiums for high-yield debt were on course to tighten the most since 2023, while measures of credit volatility fell sharply. Leveraged exchange-traded funds with bullish investing tilts have also taken $7 billion of inflows in the past month.

Mullaney and a few like-minded pros see reason to doubt that Wall Street’s history of quick resurrections will repeat. They’re sweating over categories of high-frequency data that, while far from front-page news, may provide clues as to whether April’s policy disruption will cause lasting economic pain.

At Apollo Global Management Inc., chief economist Torsten Slok flagged a “collapsing” number of container vessels departing China for the United States, writing in a note that consumers will soon see higher inflation and significant layoffs in trucking, logistics and retail jobs. At JPMorgan Chase & Co., chief US economist Michael Feroli is looking at high-frequency data already showing a drop in international visitors, which he warns would put pressure on economic growth.

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