* Futures up: Dow 0.10%, S&P 500 0.15%, Nasdaq 0.35%

* Riot Platforms ( RIOT ) surges on report of $9 bln Anthropic deal

* On drops after Q2 net sales miss

* Rocket Lab ( RKLB ) drops post-potential delay to Neutron debut

(Updates to before markets open)

By Avinash P and Purvi Agarwal

Aug 11 (Reuters) - Wall Street's main indexes were poised to

open higher on Tuesday as investors welcomed a report suggesting

the United States and Iran were close to "some sort of an

arrangement" to end six months of conflict.

Pakistan's defence minister, Khawaja Asif, told Bloomberg

News that signals from recent days indicated a peace agreement

was close, right after Qatar's foreign ministry said Iran-Oman

talks were in an advanced stage.

Brent crude futures turned lower, after hitting

one-week highs in the session. An exchange of demands between

the U.S. and Iran for the reopening of the strait complicated

efforts, pushing oil prices up 5% on Monday.

"People get a little bit immune to some of this news. But,

any positive news is better than negative news," said Robert

Pavlik, senior portfolio manager at Dakota Wealth.

"When you get some indication of something positive

happening - that this war is going to come to an end or some

kind of an agreement - you start to see oil back off."

Consumer and producer price inflation readings later this

week might shape market expectations on the U.S. Federal

Reserve's policy path, given its focus on the inflation mandate

and Chair Kevin Warsh's stance on cutting back forward guidance

on rates.

Rising energy costs stemming from the Iran conflict have

spurred inflation concerns and clouded the global economic

outlook, complicating the path for central banks globally.

Whether the central bank would increase rates in September

or choose to pause has split traders almost evenly, according to

the CME FedWatch Tool.

At 8:56 a.m. ET, Dow E-minis were up 54 points, or

0.1%, S&P 500 E-minis were up 11.5 points, or 0.15%, and

Nasdaq 100 E-minis were up 103 points, or 0.35%.

Wall Street's main indexes closed lower on Monday as

investors assessed the Middle East situation, though the S&P 500

and the Dow hovered near all-time highs.

The Nasdaq, meanwhile, is about 2.1% below its

life-high but well above its lows in July, when the tech-heavy

index slid almost 10% from its peak.

Strong quarterly earnings in several sectors have boosted

U.S. stocks to new highs and signs of AI-related spending paying

off has eased some jitters.

Riot Platforms ( RIOT ) jumped 16.7% in premarket trading,

following a media report that the cloud-computing firm clinched

a $9 billion deal with Anthropic.

Intel ( INTC ) dipped marginally, extending Monday's losses,

as it announced the pricing of a $20 billion stock offering.

Rocket Lab ( RKLB ) slid 3.9% after appearing to push back

the timeline for the first flight of its Neutron rocket.

U.S.-listed shares of On dropped 16.2% after the

sportswear brand missed Wall Street sales estimates.

Hims & Hers Health ( HIMS ) shed 7.3% after the telehealth

company posted a wider-than-expected second-quarter loss.

LNG company Venture Global ( VG ) slipped 4.4% after its

second-quarter revenue slightly missed estimates.

(Reporting by Avinash P and Purvi Agarwal in Bengaluru; Editing

by Joyjeet Das)