A yuan slump, a correction in commodity markets, Trump broadsides against the Fed, a trade war, and fresh Italian risk. For Voya Asset Management in New York, they’re headwinds threatening to disrupt the summer break.

“No one is taking a breath,” Barbara Reinhard, head of asset allocation at the $227 billion firm said. “Let’s put it this way, everyone taking a vacation: they can’t be without their devices.”

August is approaching, the most volatile month over the past two decades where thin trading exaggerates price swings.

For many, unpredictable markets could mar dreams of a lazy summer at the beach. Event risk could derail plans as trade tensions engulf the world’s largest economies and China’s sliding currency recalls August 2015’s devaluation, while Italy’s new populist government keeps political risk alive. Oh, lest you forget: President Donald Trump has a Twitter account.

“It’s the winter in the markets -- not the summer,” Louis Gargour, the chief investment officer of London-based LNG Capital, an alternative investment-management firm, said in an interview. He’s been reducing exposure to risk and increasing shorts in credit. “China’s a big story, the second-order effects of trade wars are a much bigger factor that could pressure global markets.”

Risk-off sentiment could rapidly snowball alongside the specter of higher borrowing costs. Investors may struggle to offload positions in the second lowest-volume month of the year, from corporate bonds to emerging-market assets. Goldman Sachs Group Inc. has warned that depleted liquidity makes the market prone to crises.

“You have a lot of geopolitical events that could happen this summer,” said Voya’s Reinhard. “August ones are particularly alarming -- that’s when volumes are thin and people are on vacation.”

Some investors refuse to let the hype interrupt their plans. Peter Sleep just got back from a trip to Colombia, and expects a quiet month while he holds down the fort at Seven Investment Management in London.

When reached by phone, Elm Partners Management’s Victor Haghani -- a founding partner of Long Term Capital Management LP who knows a thing or two about volatility -- was already away (but still doing work on the side).

Summer vacation is still on, says SVM Asset Management Ltd.’s Colin McLean, though you might want to take profits before you skip town.

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