US stock futures tumble, oil surges
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The S&P 500 and the Nasdaq Composite climbed to new records as traders shook off worries about the Middle East conflict.
As we enter the second half of the day's trade, the markets remain optimistic, as they were at the beginning of the day. The Nifty trades higher, jumping over 200 points, rising towards 24,550. The Sensex is up over 700 points,