NEW YORK (

TheStreet

) -- U.S. stock futures suggested Wall Street will open slightly higher Tuesday as investors turn their attention to a speech later this week from

Federal Reserve

Chairman Ben Bernanke.

European stocks were trading lower, while Asian shares finished mixed. Japan's Nikkei 225 index lost 0.6% to close at 9,003.29.

Speculation is that Bernanke, in his speech Friday in Jackson Hole, Wyo., will use his speech to call for more for more bond purchases.

European Central Bank President Mario Draghi won't be attending the Jackson Hole summit because of the "heavy workload foreseen in the next few days," a spokesman said.

The economic calendar in the U.S. Tuesday includes the S&P/Case-Shiller home price index for June at 9 a.m. EDT and consumer confidence for August at 10 a.m.

U.S. stocks

on Monday finished mixed on thin volumes Monday as traders looked ahead to the Jackson Hole summit.

The

Dow Jones Industrial Average

lost more than 33 points, or 0.25%, to close at 13,125. The

S&P 500

dipped less than a point, or 0.05%, to settle at 1410.44, while the

Nasdaq

rose more than 3 points, or 0.11%, to finish at 3073.

Tropical Storm Isaac was on the verge of becoming a full-blown hurricane Tuesday as it rolled over the Gulf of Mexico toward Louisiana.

Forecasters predicted the tropical storm would power up to hurricane strength later in the day and be at least a Category 1 hurricane by the time it's expected to reach the coast of southeast Louisiana early Wednesday. The forecast track has the storm aimed at New Orleans, but hurricane warnings extended across 280 miles,

The Associated Press

reported.

The majority of oil production in the Gulf of Mexico has been halted in preparation for the hurricane.

Apple

(AAPL) - Get Report

on Monday promoted Dan Riccio and Craig Federighi to senior vice presidents and said Bob Mansfield, who was going to retire, will stay with the company to work on future projects. Mansfield is senior vice president of hardware engineering at Apple, reporting to CEO Tim Cook.

Meanwhile, Apple is seeking bans on the sale of eight

Samsung

phones, following its patent victory over its rival.

Apple identified eight older-model smartphones, including the Galaxy S2 and Droid Charge, according to a

Reuters

report.

Knight Capital

(KCG)

has selected three new directors, including

TD Ameritrade

CEO Fred Tomczyk, three weeks after it received a $400 million injection from outside investors,

The Wall Street Journal

reported, citing people familiar with the matter.

PVH Corp.

(PVH) - Get Report

, the apparel maker, topped Wall Street's earnings expectations for its fiscal second quarter and gave a strong third-quarter outlook on Monday.

Tuesday's earnings docket includes

Bank of Montreal

(BMO) - Get Report

,

Brown Shoe

(BWS)

,

Concurrent Computer

(CCUR)

,

Movado Group

(MVO) - Get Report

and

Sanderson Farms

(SAFM) - Get Report

.

Bank of America's

(BAC) - Get Report

wealth-management unit will host a conference call Tuesday with Paulson & Co.'s John Paulson, allowing some of its financial advisers and their clients to question the struggling hedge fund chief, sources at the bank confirmed with

Reuters

.

-- Written by Joseph Woelfel

>To contact the writer of this article, click here:

Joseph Woelfel

>To submit a news tip, send an email to:

tips@thestreet.com

.

Copyright 2012 TheStreet.com Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed. AP contributed to this report.