Wall Street's IPO market -- and a healthy batch of economic readings -- helped stocks stage a rally today. Investors cheered the debut of Arm (ARM) on the Nasdaq, which jumped triple digits. Meanwhile, the Dow added more than 330 points for its best session in a little over a month, while the S&P 500 also finished substantially higher. 

OIL PRICES MARK $90 CLOSE 

Oil prices finally cleared a $90 per barrel close for the first time this year on supply tightening expectations. Crude for October delivery added $1.64, or roughly 1.9%, to settle at $90.16 per barrel for the day.

After yesterday hitting a three-week low, gold prices posted modest gains. December-dated gold gained 30 cents, or less than 0.1%, to settle at $1,932.80 an ounce for the day. 

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