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NOV Inc. designs, manufactures, and sells major mechanical components and integrated systems for both land-based and offshore drilling rigs. It manufactures complete land drilling and well-servicing rigs, the largest line of lifting and handling equipment in the industry, a broad offering of downhole drilling motors, and specialized drilling tools. The company was founded in 1862 and is based in Houston. The shares are not currently a component of the S&P 500. The firm employs approximately 34,000 people.

As of the end of last week, the S&P 500 was up 16% in six weeks; the Nasdaq 100 had skyrocketed over 26% in six weeks; and the Nasdaq Composite had jumped 25% in six weeks. No doubt, the stock market is on fire. Insiders, meanwhile, are neutral. Those two scenarios can certainly co-exist, suggesting the assumptions that an imminent correction is not likely but that stocks also are not cheap. Looking at the numbers in the weekly insider-sentiment data from Vickers Stock Research, the NYSE Eight-Week Sell/Buy Ratio is 4.88 on a scale where neutral territory runs from 2.00 to 6.00. The Nasdaq ratio is 5.57, and the Total (all exchanges) ratio is 5.23. Drilling down to insider sentiment at the sector level, long-term activity has turned neutral in many sectors, with moves that are both positive and negative in direction. On the positive side, Communication Services is now recording a neutral Eight-Week Sell/Buy Ratio of 5.4, improved from a bearish reading of 6.1 last week and markedly improved from the highly bearish reading of 17.7 only four weeks ago. On the flipside, four sectors have moved from bullish to neutral this week, including Consumer Discretionary, Industrial, Materials, and Real Estate. With most sectors now reporting neutral readings across the eight-week scale, the remaining outliers on the bullish side include Consumer Staples, Financial, Healthcare, and Utilities, while the only bearish sector remains Information Technology. This week, analysts at Vickers highlighted insider transactions of interest at Chevron Corp. (NYSE: CVX) and Comfort Systems USA Inc. (NYSE: FIX).

The Vickers Top Insider Picks is a daily report that utilizes a proprietary algorithm to identify 25 companies with compelling insider purchase histories based on transactions over the past three months.

Based in Houston, Texas, Targa Resources Corp. gathers, processes, transports and sells natural gas, NGL, and crude oil primarily in the Anadarko, Barnett, Eagle Ford, Permian, and Williston basins. TRGP consists of two segments: Gathering and Processing; and Logistics and Transportation.