US STOCKS-Wall St flat as U.S.-China trade deal optimism fades

* Mnuchin sees extra tariffs in Dec if deal not signed
* China seeking more talks before signing deal - BBG
* Energy companies among biggest drags
* AECOM rises after deal to sell management services unit
* Indexes: Dow up 0.02%, S&P down 0.08%, Nasdaq down 0.10%

(Updates to open, adds comments)
By Sagarika Jaisinghani
Oct 14 (Reuters) - U.S. stocks halted a three-day winning
streak on Monday, as oil prices dived 2% and rising doubts over
how quickly a partial U.S.-China trade deal announced on Friday
could be sealed.
Energy majors such as Exxon Mobil Corp XOM.N and Chevron
Corp CVX.N were the biggest drags on the S&P 500 index, as oil
prices gave up last week's gains following caution around the
trade deal. O/R
The S&P 500 and Dow Jones indexes had ended Friday with
their first weekly gain in a month after Washington signaled the
two sides had taken a major step in easing the tit-for-tat
measures that have hammered global growth this year.
Trump, however, acknowledged the agreement could still
collapse and a handful of media reports and comments from
Treasury Secretary Steven Mnuchin left investors feeling less
upbeat about what had really been achieved. Mnuchin said in a CNBC interview that he had "every
expectation" that if a U.S.-China trade deal was not in place by
Dec. 15, additional tariffs would be imposed, although he said
he expected a deal to be agreed by then.
Shares of companies with a sizeable exposure to China,
including Nvidia Corp NVDA.O , Advanced Micro Devices Inc
AMD.O and Micron Technology Inc MU.O , slipped slightly in
early trading after gaining on Friday. The Philadelphia
Semiconductor index .SOX was off 0.3%.
"It's more of the fact that it was a handshake deal," said
Peter Cardillo, chief market economist at Spartan Capital
Securities in New York.
"On Friday, we closed off the highs of the day as investors
began to realize that while on the surface this is good news,
there's no substance to the deal just yet."
At 10:00 a.m. ET, the Dow Jones Industrial Average .DJI
was up 6.03 points, or 0.02%, at 26,822.62, while the S&P 500
.SPX was down 2.35 points, or 0.08%, at 2,967.92. The Nasdaq
Composite .IXIC was down 7.78 points, or 0.10%, at 8,049.26.
Investors will now be looking at third-quarter earnings to
gauge the impact of the trade conflict and a sluggish domestic
economy on corporate America.
The reporting season kicks off on Tuesday, with the biggest
U.S. banks expected to report a 1.2% decline in earnings due to
falling interest rates, a raft of unsuccessful stock market
flotation and trade tensions. Citigroup Inc C.N , Goldman Sachs Group Inc GS.N and
Wells Fargo & Co WFC.N were down between 0.1% and 0.4%. The
S&P 500 bank index .SPXBK had logged its best day in a month
on Friday.
Overall, analysts are forecasting a 3.2% decline in profit
for S&P 500 companies for the quarter from a year earlier, based
on IBES data from Refinitiv.
Fastenal Co FAST.O was down 1% after two brokerages
downgraded the stock. The company had logged its best day in
three decades on Friday after reporting strong results.
Nike Inc NKE.N was the top gainer on the Dow Jones index
after Bank of America Merrill Lynch upgraded the stock to
"neutral" from "underperform".
Shares of U.S. construction and engineering company AECOM
ACM.N rose 5.6% after it agreed to sell its management
services unit to private equity firms for about $2.4 billion.
Declining issues outnumbered advancers for a 2.08-to-1 ratio
on the NYSE and for a 2.07-to-1 ratio on the Nasdaq.
The S&P index recorded one new 52-week highs and two new
lows, while the Nasdaq recorded nine new highs and 51 new lows.