The pandemic has disrupted many businesses over the past year. And if you are looking at stocks that trade at low earnings multiples based on last year's performance, you could be overlooking potential bargains. That's because a business that is coming off a rough 2020 may have an inflated price-to-earnings (P/E) ratio, and look like a bad buy.

One way to get around this is to focus on forward P/E multiples that take into account analyst projections for the coming year. And three stocks that look cheap relative to their future earnings are CVS Health (CVS 0.07%)Citigroup (C 0.97%), and Rogers Communications (RCI -0.29%).

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1. CVS Health

CVS' stock is trading at a forward P/E of less than 10 and could be an underrated buy. The typical stock in the Health Care Select Sector SPDR Fund trades at more than 27 times its earnings. 

In 2020, CVS reported $5.47 in diluted earnings per share (EPS) from continuing operations, which was a modest 7.7% higher than the previous year. However, for the current year, it projects that number could come in as high as $6.22, which would amount to an increase of 13.7%. Sales of $268.7 million last year grew at a rate of 4.6%, which the company credits to strength in its healthcare benefits and retail and long-term care segments; revenue from its pharmacy division dropped by 1.9% in 2020.

The company could be due for a good year, as people can now receive COVID-19 vaccines at CVS pharmacies in 29 states. Not only can that help lead to more foot traffic for its stores, it also helps reinforce CVS' position as a trusted neighborhood pharmacy. That's the type of rapport it needs with its customers to drive growth and have any hope of competing with an online giant like Amazon, which officially launched its pharmacy business in November 2020. 

CVS is delivering in-store services that Amazon can't compete with, and that added value can give customers added motivation to shop there. The company has already been expanding its store capabilities as it looks to convert 1,500 of its locations into HealthHubs that help patients with chronic conditions. Its MinuteClinics can also treat many common illnesses. CVS will no doubt keep a close eye on how Amazon fares rolling out its new service, Amazon Care, to employees nationwide.

In the past 12 months, shares of CVS are up 32% while the S&P 500 has risen more than 70%. However, CVS also pays a dividend that yields 2.7% -- well above the 1.5% payout that investors can typically expect from the average stock in the S&P 500 index. This is a cheap and underrated stock that value-oriented investors should consider adding to their portfolios today.

2. Citigroup

Another cheap stock to consider is Citigroup. It trades at a modest 10.6 times its future earnings, which compares favorably against both JPMorgan Chase and Bank of America, which trade at multiples around 14 and 15, respectively. Over the past year, all three have risen more than 70% in value as investors are showing more optimism for the economy.

When Citigroup released its fourth-quarter earnings on Jan. 15, its sales of $16.5 billion were just short of analyst expectations of $16.7 billion, but it beat on earnings (EPS of $2.08 compared to $1.34). The bank released $1.5 billion in reserves for credit loss during the period, in a move that signals confidence things will get better for the economy. In the previous period, the bank built up its reserves by $436 million.

The bank has renewed optimism for 2021, and despite expecting to see its net interest revenue decline between $1 billion and $2 billion, it says there should be a "significant improvement in profitability" this year (largely due to a decline in credit costs).

Citigroup is a solid blue chip buy that could be one of the safer bank stocks to invest in. With the economy looking to be in a better position (especially if the pandemic gets under control now that several vaccines are available), and its low forward P/E multiple, you aren't taking a big risk with Citigroup. And its 2.8% dividend yield only adds an incentive to buy and hold.

3. Rogers Communications

For a third industry to diversify into, investors should consider Canadian telecom giant Rogers. Its forward P/E of 16 is the highest on this list, but it isn't excessive when you consider the average stock on the S&P 500 trades at around 28 times its earnings.

And there is reason to be bullish that its future earnings could look even better now that the company has announced it is acquiring Shaw Communications in a deal worth 26 billion Canadian dollars. If it goes through (the Canadian government could intervene, as these are among the top four telecom providers in the country and the acquisition would affect competition), Rogers would become the second-largest telecom company in Canada.

Shaw has a strong presence on the West Coast that would complement Rogers' dominant presence in the East. Both companies offer internet and mobile services to millions of Canadians. Shaw only recently got into the wireless business, launching its Freedom Mobile brand in 2017, and as of Nov. 30, 2020, it has 1.9 million total subscribers. Rogers, which reported just under 11 million postpaid and prepaid wireless subscribers as of the end of last year, has significantly more market share and experience and can help grow Shaw's wireless business.

At worst, if the deal doesn't go through, investors still get a good reliable dividend stock with Rogers that yields 3.3%. The company has recorded solid 10% profit margins in each of the past four years. And at best, you could end up with a safe stock that will have a new avenue to grow its business, making it a scorching-hot buy.