Opening your next quarterly portfolio statement could be more rewarding than usual, even in a world economy marred by geopolitical turmoil.

Stocks in the Standard & Poor 500’s index closed the first quarter yesterday with an impressive 5.4 percent gain.

That alone added a whopping $667.4 billion in values of S&P holdings. The Dow Jones industrial average scored even higher, with a 6.4 percent first-quarter payoff, adding $242.5 billion to the value of blue chips.

Tech stocks also brought home the first-quarter bacon, with a 4.83 percent gain in Nasdaq shares, adding $221.2 billion in overall value.

Despite the best first quarter since 1999, some investors were concerned that today’s jobs report could throw a monkey wrench in a continued rally.

“The market has stalled around this area before,” said investment chief Jim Paulsen at Wells Capital Management. “Unless we get a bad number (today), this market is going to make a run at the year highs.”

In light trading, the Dow closed 30.88 lower at 12,319.73, the S&P lost 2.43 to 1,325.83 and the Nasdaq added 4.28 to 2,781.07.

Oil shot up to 2½-year highs here, adding $2.45 a barrel to $106.72, a jump of 16.8 percent for the quarter. In London, Brent crude rose $2.23 to $117.36 a barrel, a 23.9 percent first-quarter rise.

Analysts said energy speculators, using historically cheap borrowings, have driven up crude prices in both New York and London as a result of the Middle East political crises. Speculators control about 80 percent of the trading, with end users accounting for the rest, traders said.

Gold futures for June delivery surged 1.1 percent to $1,439.90 here.