This year's unprecedented market conditions have highlighted some of the problems with making rigid distinctions between growth stocks and value stocks. 2020 has also highlighted the incredible momentum and market-shaping power of the tech sector.

Despite playing host to many companies with highly growth-dependent valuations, tech has proven more resilient than any other industry amid the uncertainty and volatility created by the coronavirus pandemic. Take a look at the performance of the Nasdaq 100 Technology Sector index compared to the S&P 500 index and the DJIA to put this in perspective:

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High-quality tech companies that can shape and benefit from influential trends have the potential to post explosive growth over the long term, and the defensive value that these types of businesses can also add to a portfolio has never been more clear. Here's why investors seeking stocks that can deliver big growth and thrive through adversity should consider adding StoneCo (NASDAQ:STNE), CrowdStrike Holdings (NASDAQ:CRWD), and Zynga (NASDAQ:ZNGA) to their portfolios.

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1. StoneCo

According to CellPointDigital, 85% of business transactions in Latin America are still conducted with cash, and just 39% of the region's population has a bank account. The contrast between Latin America's cash and banking habits compared to those in the U.S. is staggering. 94% of adults in the U.S. have a bank account, according to the Federal Reserve, and only 26% of the country's transactions last year were made with cash. It's unlikely that the disparity will remain this stark, however.

StoneCo is a Brazil-based payment-processing company that's helping drive the growth of card and app-based payments in Latin America, and it looks poised for big growth as more people join banks and take up payment methods other than cash. The company also operates a financing division that provides loans for businesses. 

The fintech specialist has been prioritizing growth in its domestic market and posting impressive results, even as the Brazilian economy has been moving through a rough patch. Payment volume on the company's platform jumped 42% year over year in the first quarter, sales climbed 38.3% in the period, and net income rose 22.6%. Brazil's sizable population of more than 210 million people and relatively low penetration for payment-processing services suggests plenty of room for long-term growth, and the company could also see big growth in other Latin American countries.

StoneCo is already consistently profitable, and shares look like a strong buy, trading at roughly 71 times this year's expected earnings. 

2. CrowdStrike Holdings

Work-from-home measures taken in response to the coronavirus pushed more business into the digital space and heightened the need for strong cybersecurity protections. Growth for digital commerce and communications was already rising at a rapid clip, but the need to stem the spread of the COVID-19 respiratory illness substantially elevated demand, and it's a virtual certainty that online business growth will continue to power the overall economy long after the need for social distancing and other measures has abated. 

CrowdStrike is a cloud-based cybersecurity company that helps prevent enterprise customers' computers and mobile devices from being hacked. Sales increased 85% year over year to reach $178.1 million in the first quarter, and free cash flow for the period jumped to reach $87 million -- up from a cash burn of $16.1 million in the first quarter of 2019. The company should continue to benefit from the trend of more business being conducted online and a rising tide of cybersecurity threats.

The endpoint security specialist has a subscription-heavy business model with high customer retention and strong gross margins. Gross margins on the company's subscription revenues came in at 77% last quarter (up from 72% in Q1 2019), and there's plenty of room for sales and earnings expansion as the business brings new enterprise customers on board and existing customers increase their spending.

CrowdStrike has a market capitalization of roughly $23 billion and is valued at roughly 30 times this year's expected sales, but the company's growth-dependent valuation could end up looking very cheap with the passage of time. 

3. Zynga

As far as long-term tech trends go, increasing demand for interactive entertainment looks like one of the safest bets there is. Video games are still relatively young as a medium, and their participatory nature leads to higher levels of engagement and longer product life cycles compared to other media.

Zynga is a mobile games publisher that releases casual and social-focused titles, and the company looks ready to reap rewards from smart moves it's made over the last half-decade and the overall growth of the interactive-entertainment industry. Zynga has been releasing content updates and honing monetization strategies to drive spending across its portfolio of core franchises, and it's also been on a major acquisitions push to bring new properties and development studios into the fold. 

The company recently made its largest-ever acquisition, purchasing Istanbul-based Peak Games in a $1.8 billion deal at the beginning of June. Zynga expects that integrating the developer's titles will boost its mobile daily active user base by more than 60%. If the company can manage the same monetization magic with Peak's video games that it has with other titles, the business should enjoy a major new growth catalyst. Zynga also still has a net cash position of roughly $500 million, so it has room to pursue additional acquisitions and investments to drive growth. 

Zynga appears to have made a return to posting consistent profitability, and shares trade at roughly 30 times this year's expected earnings. The company's current library of games should provide dependable sales and earnings streams, and the stock could skyrocket if new franchises also prove to be hits. 

This article represents the opinion of the writer, who may disagree with the “official” recommendation position of a Motley Fool premium advisory service. We’re motley! Questioning an investing thesis -- even one of our own -- helps us all think critically about investing and make decisions that help us become smarter, happier, and richer.