NEW YORK (TheStreet) -- Shares of Lockheed Martin (LMT) were advancing in mid-afternoon trading on Monday after Stifel upgraded the stock rating to "buy" from "hold" this morning.

While President-elect Donald Trump is expected to increase defense spending, that's not why the firm raised its rating on this defense stock, Stifel Director Joseph DeNardi said on CNBC's "Halftime Report" on this afternoon.

"I think we'd be doing this even without Trump winning. I think what gets us more comfortable is really the outlook for free cash flow," he explained. Free cash flow over the past few years has looked good for defense stocks and that's expected to continue over the next three years.

"This is a company that I think can grow the dividend 10% a year and buy back 2% to 3% of its market cap a year. So that's what gets us comfortable with it going forward," DeNardi explained.

While this call would have been made regardless of who won the election, Trump does add "some upside potential" to the stock, DeNardi added.

The biggest beneficiary of increased defense spending will be Lockheed Martin, Northrop Grumman (NOC) and Raytheon (RTN), he predicted. Lockheed in particular should see a boost because its F-35 aircraft is "clearly one of the bigger priority programs at the DOD."

(Lockheed Martin is a holding in David Peltier's Dividend Stock Advisor.)

Separately, TheStreet Ratings objectively rated this stock according to its "risk-adjusted" total return prospect over a 12-month investment horizon. Not based on the news in any given day, the rating may differ from Jim Cramer's view or that of this articles's author. TheStreet Ratings has this to say about the recommendation:

We rate LOCKHEED MARTIN CORP as a Buy with a ratings score of A. This is based on the convergence of positive investment measures, which should help this stock outperform the majority of stocks that the team rates.

You can view the full analysis from the report here: LMT

LMT Chart LMT data by YCharts

More from Markets

Jim Cramer: Kimberly Clark's Quarter Was Better Than Procter & Gamble's

Jim Cramer: Kimberly Clark's Quarter Was Better Than Procter & Gamble's

Dow Makes Move Higher as Bond Yields Hover Near 3% Threshold

Dow Makes Move Higher as Bond Yields Hover Near 3% Threshold

The Stock Market Isn't Rigged, Just Look At The Odds (VIDEO)

The Stock Market Isn't Rigged, Just Look At The Odds (VIDEO)

Let the Najarian Brothers Help You Generate Income With Options

Let the Najarian Brothers Help You Generate Income With Options

All Investors Can Trade Options, Just Ask the Najarian Brothers WATCH VIDEO

All Investors Can Trade Options, Just Ask the Najarian Brothers WATCH VIDEO