Ark Invest CEO Cathie Wood has made quite the name for herself among growth investors. In fact, her name has become synonymous with a high-risk, high-reward approach to investing. Wood weights holdings in her firm's exchange-traded funds (ETFs) heavily toward innovative companies with the potential to deliver explosive returns. Lately, this approach is paying off big-time.

The share price for Wood's flagship Ark Innovation ETF (NYSEMKT: ARKK) is up roughly 56% over the last year, trouncing the total return of approximately 23% posted by the S&P 500 index across the stretch. With Ark's top fund more than doubling the return from the benchmark index over the last 12 months, growth-oriented investors might want to take a page from Wood's playbook and invest similarly.

Notably, the three largest holdings in the Ark Innovation ETF skyrocketed an average of approximately 193% over the last year. With that in mind, read on for a look at the three stocks that played an outsize role in powering Wood's top fund to big returns.

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Source Fool.com