SAN FRANCISCO -- Software stocks were on the move Monday as analysts shifted ratings both north and south and raised target prices for a handful of developers.

Analysts attempted to sort out whether small growth companies or big-ticket defensive stocks were better suited to the tough environment.

Tibco

(TIBX)

was hardest hit by a Goldman Sachs downgrade, while investors also punished

Salesforce.com

(CRM) - Get Report

. That company started the week with both an upgrade and a downgrade.

On a day when the iShares S&P GSTI Software Index was down a penny to $49.11, Tibco, which develops business management software, was off 78 cents, or 10.2%, to $6.84 in morning trading. Salesforce, which delivers subscription-based software over the Web, was down $2.85, or 4.8%, to $56.01.

Expecting slower software demand driven by economic uncertainty in early 2008, Goldman Sachs issued sell ratings on both stocks.

Among software companies, Tibco is vulnerable to reductions in IT spending for the first half of 2008, Goldman Sachs analyst Derek Bingham wrote. The company has high exposure to the beleaguered financial services sector "heading into the seasonally slower first half," he wrote. Tibco is an investment banking client of the firm.

Noting that Salesforce is already selling above a $51 price target, Goldman Sachs analyst Sasa Zorovic downgraded the stock to sell. The firm reported no disclosures regarding Salesforce.

But UBS analyst Heather Bellini raised Salesforce to a buy, lifting her price target to $70, from $55. "In addition to being the leader in the fast growing software as a service space, Salesforce.com has done an excellent job at preparing itself for the next chapter in its life" with its platform-centered strategy, she wrote. Spending on hosted subscription software should hold up better than large-ticket software purchases, she added. UBS makes a market in shares of Salesforce.

New issue

NetSuite

(N)

, which, like Salesforce, is a pure play on hosted software, was down $4.08, or 13%, to $27.61.

"A slowing U.S. economy may spread overseas removing a key tailwind for the group," Goldman Sachs analyst Sarah Friar wrote.

Friar reiterated her view that in a tough macro environment,

Oracle

(ORCL) - Get Report

is her top defensive buy in the sector, while

Microsoft

(MSFT) - Get Report

, also a buy, will benefit from major upgrades to server software this year. Oracle was up 35 cents, or 1.6%, to $22.38. Microsoft was up 25 cents, or 0.7%, to $34.63.

Goldman Sachs also raised price targets on sector companies

Autodesk

(ADSK) - Get Report

,

BMC Software

(BMC)

and

Informatica

(INFA)

.

Computer-aided design software developer Autodesk is doing well as the engineering profession switches to three-dimensional design. Zorovic projects 15% annual revenue growth for Autodesk over the next five years, while it expands operating margins.In addition, business software maker BMC, benefitting from vendor consolidation, is showing market share gain, according to Bingham.

Autodesk was up 89 cents, or 2%, to $46.59. BMC rose 42 cents, or 1.3%, to $34.10, while Informatica was down 13 cents, or 0.8%, to $16.98.

Meanwhile, Goldman Sachs lowered its price target on

Macrovision

( MVSN) from $27 to $22. It was trading up 26 cents, or 1.5%, to $17.26. Goldman Sachs makes a market in Macrovision. Microsoft, Autodesk, BMC and Informatica are investment banking clients of the firm.