UPDATE 1-Market's recent tailwind could die down.

(From CBS Marketwatch (Stories))

NEW YORK (CBS.MW) -- In this holiday-shortened week, Wall Street's debate will likely continue on whether the recent tailwind that had been pushing stocks up will wither in the summer heat.

The Dow Jones Industrial Average will be coming off its first down week in the past four, mostly on fresh concerns on mad cow disease and terror attacks.

The blue-chip benchmark won't be getting any support on Tuesday from overseas markets, which tumbled on the dollar's slide against both the euro and yen. Read Global Markets.

The Dow Jones Industrial Average ended last week at 8,601, down 77 points, or 0.9 percent, from its week-ago level of 8,678.

The Nasdaq Composite Index finished at 1,510, down 28 points, or 1.8 percent from its level of 1,538 last week.

The Standard & Poor's 500 Index closed at 933, down 11 points, or 1.2 percent from its week-ago level of 944.

Mark Hulbert, who tracks newsletter sentiment for CBS MarketWatch via the Hulbert Financial Digest, said once again the pattern of "sell in May and go away" appears to be intact.

"This has been confirmed by academic research looking at 37 countries -- the market has a lower return between May 1 and Halloween than the other six months of the year," he said. "In the summer, traders and investors withdraw money from the stock market because they go on vacation. All it takes is a few investors pulling money out for returns to lower."

The trend is more noticeable in Europe, where there's a stronger tradition of workers taking off for…