Several more tech stocks could see some changes on Wall Street today. The following listed companies should see some movement: AT&T Inc (NYSE:T), Hewlett-Packard Co. (NYSE:HPQ), Intel Corp. (NASDAQ:INTC).

Here is a more detailed look at stories affecting the firms’ stock prices.

AT&T Inc (NYSE:T)

AT&T Inc (NYSE:T) has met its match in competitor Clearwire Corp. (NASDAQ: CLWR), who came out with a new offering called Rover, a pay-as-you-go 4G wireless Internet service.

Admittedly, it’s not cheap at $50 a month, but this is 4G, and the best part is, there’s no contract to sign. And, Clearwire said, Rover will not feature any data caps. Currently AT&T Inc (NYSE:T) is offering a 5 GB prepaid plan for $60 a month.

Hewlett-Packard Co. (NYSE:HPQ)

Hewlett-Packard Co. (NYSE:HPQ) today said it will spend $10 billion buying its own stock, which is trading near its 52-week low.

The buybacks total 17% of HP’s market capitalization.

HP (NYSE:HP) shares are up 1.75% today, while the broader market is down by nearly that amount. It’s worth noting that companies usually try to buy back their stock at the high point, not the low point.

Intel Corp. (NASDAQ:INTC)

The purchase of a wireless chipmaker has shown Intel Corp. (NASDAQ:INTC)’s intent in the market, however ARM is not just going to give up without a fight.

Intel Corp. (NASDAQ:INTC) has just made a $1.4 billion statement about its willingness to expand beyond the PC chip market.

According to Jon Erensen, an analyst at the market-research firm Gartner, “Intel is going all-in on wireless.”

So far though, chips designed by ARM Holdings PLC have a tight hold on the mobile phone processor market.

There will probably be more movement as the stock markets continue for AT&T Inc (NYSE:T), Hewlett-Packard Co. (NYSE:HPQ) and Intel Corp. (NASDAQ:INTC).