I am always on the lookout for investment opportunities that conform to Benjamin Graham's deep-value criteria.

Graham is widely considered to be the father of value investing. He developed strategies for finding undervalued securities based on analyzing balance sheets. One technique he used for finding deep value stocks was called net-net investing, which values a company based solely on its net current assets.

The idea behind this method was that if an investor can buy a security for less than the value of its current assets, long-term assets are effectively free. Therefore, there should be a wide margin of safety

As the human species evolved from hunter-gatherers into massive clusters within cities, construction projects have only grown in size. In fact, spending in 2018 was north of $1.3 trillion according to the U.S. Census Bureau. For Tutor Perini Corp. (TPC), its deep and rich tradition that stretches back over 120 years provides the trust and experience to take on lucrative projects like Las Vegas City Center or Encore at Wynn to 10 Hudson Yards and Queens Bored Tunnels.

Tutor Perini’s general contracting, construction management and design-build services are offered to private and

Donald Smith & Co., which was founded by Donald Smith (Trades, Portfolio), bought shares of the following stocks during the fourth quarter:

The guru added 13.67% to his JetBlue Airways Corp. (JBLU) stake, impacting the portfolio by 0.68%.

The investor's holding of Tutor Perini Corp. (TPC) was boosted 191.64%. The trade had an impact of 0.68% on the portfolio.

The construction company has a market cap of $784.91 million and an enterprise value of $1.39 billion.

GuruFocus gives the company a profitability and growth rating

A gun that everyone believes isn’t loaded can be an especially potent weapon.

In the stock market, the price-to-book ratio is such a weapon. Many people dismiss it as an obsolete stock-picking tool.

Obsolete? Hardly. I have written 17 columns since 1998 recommending stocks with a low price-to-book ratio. The average 12-month gain on these recommendations has been 16.8%, which beats the 10.0% average return for the Standard & Poor’s 500 Index by nearly seven points.

Of the 17 columns, 12 have been profitable and 11 have beaten the index.

Bear in mind that my column recommendations are theoretical and

U.S. stocks advanced Wednesday morning, ahead of a strong data on the labor market. The U.S. created 227,000 new private-sector jobs in October. The Dow Jones Industrial Average rose more than 280 points, or 1.12% to 25,153. The S&P 500 index gained 1.22% to 2,715, and the Nasdaq Composite Index advanced 1.82% to 7,291.

Shares of General Motors Co. (GM) jumped more than 7% on Wednesday after the company posted third-quarter earnings of $1.87 per share, on revenue of $35.8 billion, reflecting 6.5% year-over-year growth. The company beat earnings estimates by 62 cents and revenue expectations by $460 million.

The

HOTCHKIS & WILEY are value investors focusing on important investment parameters such as a company's tangible assets, sustainable cash flow and potential for improving business performance. It manages a portfolio composed of 173 stocks with total value of $23.763 billion.

Marathon Oil Corp. (MRO)

The guru increased its shares in Marathon Oil by 44.55% in the first quarter. It now holds 55,604,492 shares and is the largest shareholder among the gurus with a stake of 6.56% of the company’s outstanding shares. Since then, the price of the stock has risen by 64%.

The company has a market cap of

James Barrow (Trades, Portfolio) is executive director of Dallas-based investment firm Barrow Hanley Mewhinney & Strauss, the lead portfolio manager for the Vanguard Windsor II and Selected Value Funds. Barrow Hanley currently serves as a sub-adviser to more than 45 equity and fixed income mutual funds.

During the third quarter 26 stocks got new positions in Barrow’s portfolio, and here are his most weighted new buys.

The investor acquired a 12,751,758-share stake in United Technologies Corp. (UTX) at an average price of $97.82 per share. It provides high technology products and services

Vodafone (VOD) and Benchmark Electronics (BHE) are trading at less than book value. That’s a sign alert investors should watch for.

Book value is a company’s net worth – its assets minus its liabilities. When a stock sells for less than a company’s book value per share, it can signify the stench of trouble – or the sweet scent of opportunity.

This is the 15th column I’ve written since 1998 on stocks selling “below book.” The average one-year return on my Below Book recommendations has been 18.0%, compared to 9.7% for the Standard & Poor's 500 over

According to GuruFocus Insider Data, these are the largest CEO buys during the past week. The overall trend of CEOs is illustrated in the chart below:

Tutor Perini Corp (TPC): Chairman & CEO, 10% Owner Ronald N Tutor Bought 131,809 Shares

Chairman & CEO, 10% Owner of Tutor Perini Corp (TPC) Ronald N Tutor bought 131,809 shares during the past week at an average price of $23.79. Tutor Perini Corp was incorporated in 1918. The Company is a construction services company which offers general contracting, pre-construction planning and comprehensive project management services, including the

According to GuruFocus Insider Data, these are the largest CEO buys during the past week. The overall trend of CEOs is illustrated in the chart below:

Tutor Perini Corp: Chairman & CEO, 10% Owner Ronald N Tutor bought 153,115 shares

Chairman & CEO, 10% Owner of Tutor Perini Corp (TPC) Ronald N Tutor bought 153,115 shares during the past week at an average price of $22.49. Tutor Perini Corp was incorporated in 1918. The company is a construction services company which offers general contracting, pre-construction planning and comprehensive project management services, including the planning

The All-In-One Guru Screener can be used to find insider buys over the last week by clicking on the Insiders tab and changing the settings for All Insider Buying to “$2,000,000+” and Duration to "over the past 7 days".

According to the above filters, the following are three recent buys from company insiders:

On June 5, the insiders Ronald N. Tutor (10% owner) and Ronald D. Tutor (chairman and CEO, 10% owner) of Tutor Perini Corp (TPC), paid a total of $4,278,980 to buy 190,008 shares for $22.52 per share. After that trade, the

Amazon.com Inc. (AMZN): Chairman, CEO and President, 10% Owner Jeffrey P Bezos sold 1,064,158 Shares

Tutor Perini Corp. (TPC): Chairman & CEO, 10% Owner Ronald N Tutor sold 600,000 Shares