Defense giants General Dynamics (GD) - Get Report , Lockheed Martin (LMT) - Get Report and Northrop Grumman (NOC) - Get Report were trading sideways to lower before Donald Trump was elected president. These stocks gapped higher in tandem on the election win in anticipation that defense contractors will benefit from increased spending on the rebuilding of military hardware. 

These three companies will be reporting their latest quarterly results over the next four days, and any thoughts or guidance from these companies when it comes to prospects in the Age of Trump will be more important than actual earnings reports.

Lockheed Martin reports results before the opening bell Tuesday. Analysts expect the company to earn $3.04 a share. The company has beaten estimates in 14 consecutive quarters. Jim Cramer expects the company to have a "very, very good" quarter despite the President Trumps concern of cost overruns for the U.S. F-35 fighter jet.

Northrop Grumman reports before the opening bell on Thursday. Analysts expect the company to earn $2.49 a share. The company has beaten estimates in six consecutive quarters. Earlier in the month this defense contractor faced a downgrade to hold from buy at Jefferies based upon their $243 price target.

General Dynamics reports before the opening bell on Friday. Analysts expect the company to earn $2.54 a share. The company has beaten estimates in 15 consecutive quarters. A key will be guidance from relative to increased contracts to service the U.S. Navy fleet.

Here's a scorecard for the three defense contractors since the election followed by their weekly charts.

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The weekly charts show a red line through the weekly price bars, which is the key weekly moving average (a five-week modified moving average). The green line is the 200-week simple moving average considered to be the "reversion to the mean."

The study in red along the bottom of the chart is weekly momentum (a 12x3x3 weekly slow stochastic), which scales between 00.00 and 100.00, where readings above 80.00 indicates overbought and readings below 20.00 indicates oversold.

A negative weekly chart shows the stock below its key weekly moving average with weekly momentum declining below 80.00 in a trend towards 20.00. A positive weekly chart shows the stock above its key weekly moving average with weekly momentum rising above 20.00 in a trend towards 80.00.

Here's the weekly chart for General Dynamics.

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Courtesy of MetaStock Xenith

General Dynamics closed Monday at $177.23, up 15.2% since the election and 1.6% below its all-time intraday high of $180.09 on Dec. 5.

The weekly chart for General Dynamics is positive but overbought with the stock above its key weekly moving average of $174.51, and well above its 200-week simple moving average of $126.16, last tested as the "reversion to the mean" during the week of April 26, 2013, when the average of $67.27. The weekly momentum reading is projected to rise to 89.11 this week up from 87.43 on Jan. 20, moving further above the overbought threshold of 80.00.

Investors looking to buy General Dynamics should do so on weakness to $162.56 and $156.56, which are key levels on technical charts until the end of 2017 and the end of March, respectively. The $172.10 is a tighter value level for January. Investors looking to reduce holdings should consider selling strength to $180.87 and $195.54, which are key levels on technical charts until the end of this week and the end of June, respectively.

Here's the weekly chart for Lockheed Martin.

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Courtesy of MetaStock Xenith

Lockheed Martin closed Monday at $257.48, up 7.6% since the election, and down 4.6% from its all-time of $269.90 set on Dec. 5.

The weekly chart for Lockheed Martin shifts to positive if the stock ends the week above its key weekly moving average of $255.22, if the weekly momentum reading is rising. The stock is well above the 200-week simple moving average of $188.09. The stock has been above its 200-week SMA since the week of Jan. 20, 2012, when this "reversion to the mean" was $81.10. The weekly momentum reading is projected to end the week at 62.49 this week virtually flat from 62.71 on Jan. 20. A close Friday above 62.71 would thus be positive.

Investors looking to buy Lockheed Martin should consider doing so on weakness to $246.21 and $221.86, which are key levels on technical charts until the end of this week and until the end of 2017, respectively. The $256.89 level should be a magnet through March. The Investors looking to reduce holdings should consider selling strength to $263.47 and $299.16, which are key levels on technical charts until the end of January and the end of June, respectively.

Here's the weekly chart for Northrop Grumman.

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Courtesy of MetaStock Xenith

Northrop Grumman closed Monday at $231.69, up just 0.8% since the election. The stock is 8.7% below its all-time high of $253.80 set on Nov. 29.

The weekly chart for Northrop Grumman is negative with the stock below its key weekly moving average of $233.35 and well above the 200-week simple moving average of $155.23. The last test of this "reversion to the mean" occurred during the week of Nov. 25, 2011, when the average was $54.18. The weekly momentum reading is projected to decline to 45.47 this week down from 50.79 on Jan. 20.

Investors looking to buy Northrop Grumman should consider doing so on weakness to $222.02 and $215.02, which are key levels on technical charts until the end of this week and until the end of 2017, respectively. Investors looking to reduce holdings should consider selling strength to $242.94, $246.75 and $265.60, which are key levels on technical charts until the end of January, March and June, respectively.

This article is commentary by an independent contributor. At the time of publication, the author held no positions in the stocks mentioned.