Wall Street falls in volatile trading after Fed minutes

Minutes raise questions on if Fed will raise rates next month

US stocks fell in choppy trading on Wednesday as minutes from the latest Federal Reserve meeting highlighted concern over the state of the global economy, driving markets to question the likelihood that the Fed will raise rates next month.

The minutes showed policymakers continued to express broad concerns about lagging inflation and the weak world economy even as the US job market improved further. Market expectations for a Fed hike in September fell from one in two to roughly one in three after the minutes were published.

Utilities stocks sought by investors when Treasuries yields are seen remaining lower for longer, sharply outperformed the benchmark index with a 0.4% gain.

Energy stocks posted the most losses on the S&P 500 as crude oil fell 5% on the day, even as the US dollar also weakened.

"It looks like based on commodity prices, China, wages not really picking up, that [Fed officials] are not getting any closer to meeting their inflation target and seems like they're probably not going to be willing to go in September" with a rate hike, said Don Ellenberger, head of multi-sector strategies at Federated Investors in Pittsburgh.

A delay in the start of the tightening cycle is seen as supportive of equities. However, concern about the strength of the global economy, specifically regarding China, kept pressure on commodity prices and weighed on stocks in the energy and materials sectors.

"Things are deteriorating in China and that's not good for global growth. That deterioration might be enough to impact our exports and manufacturing industry," said Ellenberger.

The Dow Jones industrial average fell 162.61 points, or 0.93%, to 17,348.73, the S&P 500 lost 17.31 points, or 0.83%, to 2,079.61 and the Nasdaq Composite dropped 40.30 points, or 0.8%, to 5,019.05.

Major indexes had fallen more than 1% in late morning trading but the Nasdaq and Dow industrials briefly turned positive after the release of the Fed minutes.

Fed officials were concerned about "recent decreases in oil prices and the possibility of adverse spillovers from slower economic growth in China," according to the minutes.

Those concerns may have increased since. China devalued its currency nearly two weeks after the Fed meeting in a move seen by some as an attempt to energize exporters, while US oil futures have fallen roughly 17% since July 29, the second day of the Fed meeting.

Materials stocks fell 1.2% as copper touched a six-year low on persistent concerns about slowing growth in China.

Declining issues outnumbered advancing ones on the NYSE by 2,274 to 766, for a 2.97-to-1 ratio on the downside; on the Nasdaq, 2,065 issues fell and 739 advanced for a 2.79-to-1 ratio favouring decliners.

The benchmark S&P 500 index posted 20 new 52-week highs and 28 new lows; the Nasdaq Composite recorded 33 new highs and 128 new lows.

About 7 billion shares changed hands on US exchanges, compared with the 6.62 billion daily average so far this month, according to BATS Global Markets data.