Since March 2020, the U.S. equity market has witnessed the shortest bear market in history, followed by a ferocious tech-driven rally and then a sharp rotation from growth to value stocks.

Things may now be on the verge of changing again -- and for the worse. In April, the consumer price index (CPI, a metric used to gauge inflation) rose year-over-year by 4.2% , a stark jump from 2.6% year-over-year increase in March . This has left investors and analysts worried that the U.S. Federal Reserve could tighten its monetary policy earlier than expected. While Treasury Secretary Janet Yellen sees this inflation as transitory, increasing labor costs (wage inflation is sticky) and rising commodity prices seem to point to a more persistent inflation trend.

Against this backdrop, another market crash might now seem inevitable. However, you can safeguard your portfolio from dramatic drawdowns even in such an uncertain environment by picking up some fundamentally strong all-weather stocks -- including American Tower (AMT 0.13%), Visa (V -1.06%), and Trulieve Cannabis (TCNNF -1.31%) (TRUL -1.21%).

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1. American Tower

Real estate investment trust (REIT) American Tower currently owns and operates 187,000 communications real estate sites across 22 countries. The recently announced Telxius acquisition is adding 31,000 more communications sites to AMT's portfolio and significantly strengthening its presence in Europe.

With a broad cell tower footprint, AMT has emerged as a key beneficiary of many recent trends, including increasing wireless mobile phone penetration, rising mobile data usage, and the availability of lower-cost smartphones. All of these are driving carriers to accelerate the pace of 5G network deployments, acquiring mid-band spectrum assets such as 2.5 gigahertz and C-band frequencies to expand coverage of the 5G network in urban and rural locations. American Tower is well-positioned to leverage these structural tailwinds in the long run. The company is investing in several initiatives, including upgrading the capacity of its towers to accommodate more tenants and more equipment for existing tenants, building or acquiring new towers, and power-saving solutions.

In the first quarter (ending March 31), American Tower's revenue rose 8.3% year over year to $2.2 billion, while adjusted funds from operations (AFFO, a profitability metric used in the REIT industry) were up 23.8% year-over-year to $1.1 billion. The company enjoys high-revenue visibility and low top-line volatility, mainly thanks to its long-term contracts with prominent wireless carriers such as AT&T (T 0.98%), Verizon (VZ 1.11%), and T-Mobile (TMUS 0.64%).

Being a REIT, AMT must return at least 90% of its taxable income as dividends. AMT is currently paying a quarterly dividend of $1.24 per share, which translates into a dividend yield of 1.85%. With a trailing-12-month (TTM) dividend payout ratio (based on dividends paid as a percentage of AFFO) of 58.8%, AMT has sufficient financial flexibility to continue increasing its dividend payments in coming quarters.

AMT is trading at a TTM price-to-sales (P/S) multiple of 14.48, which is not cheap -- the average for REITs in the first quarter was 8.32. However, considering that the REIT already enjoys a strong moat in a rapidly expanding market, it could still prove to be an attractive investment for retail investors even at these elevated levels.

2. Visa

Payments network giant Visa saw a dramatic decline in cross-border transactions in 2020, as the pandemic caused a plunge in international travel. In the long run, however, the company stands to benefit from the pandemic-driven shift toward a cashless economy. As the adoption of e-commerce and digital transactions continues to accelerate, Visa expects an increase in consumer payments, be they credit or debit transactions. The number of card-not-present transactions continues to rise even as card-present transactions also increase in the recovering U.S. economy.

Visa expects contactless services such as digital wallets and phone payments to become huge growth drivers in coming years. The company has also added real-time payments platform Visa Direct Payouts and is gradually rolling out infrastructure for multiple types of cryptocurrency transactions. The shift in consumer preferences toward digital experiences is also driving up demand for Visa's value-added services, including secure payment platform Cybersource as well as risk management and authentication offerings.

Thanks to these structural tailwinds, Visa's second-quarter (ending March 31) operational performance has already surpassed pre-pandemic levels in many areas. The company's global payments volume was up 11% year over year and 16% higher than the corresponding quarter in 2019. U.S. payments volume also rose by 18% year-over-year and 24% from 2019.

While cross-border volume is still down 11% year over year, Visa did witness a seasonal uptick in March and April. Even in the first quarter, cross-border travel-related spending (excluding intra-Europe) has been improving thanks to loosening restrictions and recovery of some cross-border travel. As the pace of vaccinations accelerates and international travel recovers, Visa may see a significant jump in travel-related cross-border volumes in the next few months.

With a TTM P/S multiple of 22.9, Visa seems quite expensive. However, this is a company well-positioned to enjoy network effects and economies of scale in a recovering economy that is rapidly going digital. Hence, despite the rich valuation, the company offers an attractive risk-reward proposition to retail investors.

3. Trulieve Cannabis

Trulieve Cannabis has gained 194% in the past year -- and for good reason. This is one of the very few profitable U.S. multi-state operators (MSOs) in the cannabis space. Trulieve has focused extensively on the medical marijuana market in its home state, Florida. As of May 13, the company operated 82 dispensaries  and had sold its products to 2.5% of the total 500,000 registered patients in Florida. Trulieve is also focusing on building a presence in the medical marijuana markets of California, Connecticut, Pennsylvania, and Massachusetts.

Trulieve's acquisition of Arizona-based Harvest Health & Recreation (HRVSF) in an all-stock deal worth $2.1 billion will further expand the combined company's geographic presence to 11 U.S. states. After deal completion, which is expected in the third quarter, Trulieve will have 126 medical and recreational dispensaries in its portfolio targeting the burgeoning cannabis market in the southeast, west, and northeast U.S. The combined company is expected to report fiscal 2021 revenue of $1.2 billion and adjusted EBITDA of $461 million. The deal is also expected to reduce Trulieve's geographic concentration risk, which has arisen from the company's extensive reliance on the Florida market.

In the first quarter (ending March 31), revenues rose year-over-year by 102% to $194 million, adjusted EBITDA rose by 87% to $91 million, and net profits rose by 27% to $30 million. The company also has a sturdy balance sheet, as is evident by the $162 million cash and $86 million debt at the end of the first quarter.

With a TTM P/S of 7.6, Trulieve is cheap compared to other U.S. MSOs such as Curaleaf Holdings (CURLF -0.49%) and Green Thumb Industries (GTBIF -1.08%). Recent history has shown the legal cannabis industry is mostly recession-proof -- meaning Trulieve can survive a market crash. Against a backdrop of solid top-line growth, profitability, and robust growth strategy, this company can prove to be a long-term winner for retail investors.