Dip Buyers Support Stocks as Bond Market Assesses US Downgrade

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(Bloomberg) -- Stock traders knew it was an ugly setup entering Monday, with futures lower in premarket action and Treasury yields racing higher after Moody’s downgraded the US debt at the very end of last week.

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But then a weird thing happened as trading got underway: The bond market calmed down. The yield on 10-year Treasuries, which had leaped the highest since February, began to fall, eventually dropping below where it started the session. That gave small investors in the stock market the all-clear sign to buy the dip, dragging the S&P 500 Index most of the way out of a decline that had reached more than 1% to finish up 0.1%.

And with that, the lightning-quick $8.5 trillion rally in US stocks kept running for another day.

“At the moment, the fear of missing the bounce and follow-through is stronger than the prospect of anything going wrong with US’s credit rating from late-to-the-table Moody’s,” said Mark Malek, chief investment officer at Siebert. “That does not mean that there is no ‘real’ risk associated with the downgrade, if something goes wrong with trade negotiations, all bets are off.”

The S&P 500 fell 0.3% by 9:39 a.m. in New York on Tuesday, as traders awaited fresh catalysts after a six-day winning streak.

Stocks, which are riskier than bonds, are highly sensitive to credit-rating downgrades. When investors get worried about a government’s ability to pay its debts, they pull money out of equities and pile into safer assets, which usually means US Treasuries. Many professional investors have sold their equity holdings, leaving the market to the retail crowd.

“There was not a lot of news in the downgrade, and then the bigger dynamic is that many investors are sitting on sidelines so any pullback is leading to dip buying,” said Tom Lee, founder of Fundstrat Capital.

Fed Model

A variety of impulses were behind Monday’s stock market rebound. House Republicans moved a tax-cut bill that’s expected to stimulate growth out of committee, bringing it closer to passage in that chamber. A barometer of the cost of US equities versus Treasuries, known as the Fed Model, is signaling that yields can move higher before the damage spills over into the stock market. However, some Wall Street pros question the significance of the measurement.

“The model has been showing that the S&P 500 is undervalued since 2005 no matter what,” said Ed Yardeni of Yardeni Research, who coined the term Fed Model. “So it kept you in the stock market for sure.”