Shares of S&P Global Inc. SPGI have gained 37.4% so far this year, outperforming the 19.5% growth of the industry it belongs to and 24.9% rise of the Zacks S&P 500 composite.Image Source: Zacks Investment ResearchLet’s delve into factors that have contributed to the company’s outperformance:Upbeat 2021 GuidanceS&P Global raised its full-year 2021 guidance. The company now expects adjusted EPS in the range of $13.5-$13.65 compared with the prior guidance of $12.95-$13.15. The current Zacks Consensus Estimate of $13.57 lies within the updated guidance.Free cash flow is anticipated between $3.6 billion and $3.7 billion compared with the prior guidance of $3.5-$3.6 billion. Revenues are anticipated to increase low double digits.Consecutive Earnings & Revenue BeatS&P Global reported back-to-back earnings and revenue beat in all the past four quarters. While the bottom line gained from revenue growth and benefits of productivity initiatives, the top line performed well on the back of strength across all segments, namely S&P Global Ratings, S&P Global Market Intelligence, S&P Global Platts, and S&P Dow Jones Indices.Strategic Acquisitions Bode WellAcquisitions have been a key growth strategy for S&P Global, helping it continuously innovate, increase differentiated content and develop new products.In 2020, the company completed the acquisitions of ESG Ratings Business (from RobecoSAM) and Greenwich Associates LLC. While the ESG Ratings Business is expected to boost the company’s position as a premier resource for essential ESG data, ratings, benchmarks and insights, Greenwich can complement its existing portfolio of products and expand its offerings to new segments across financial services, including commercial banks, and asset and wealth managers.The company is expected to continue adding advanced technology and data sets through acquisitions, which in turn should boost its top- and bottom-line growth.Zacks Rank and Stocks to ConsiderS&P Global currently carries a Zacks Rank #3 (Hold). You can see the complete list of today’s Zacks #1 Rank (Strong Buy) stocks here.Some better-ranked stocks in the broader Zacks Business Services sector are Avis Budget CAR, Automatic Data Processing ADP and FactSet Research Systems FDS, each carrying a Zacks Rank #2 (Buy).Avis Budget has an expected earnings growth rate of around 395.65% for the current year. The company has a trailing four-quarter earnings surprise of 76.9%, on average.Avis Budget’s shares have surged 624.4% so far this year. The company has a long-term earnings growth of 27.5%.Automatic Data Processing has an expected earnings growth rate of around 12.3% for the current fiscal year. The company has a trailing four-quarter earnings surprise of 9.7%, on average.Automatic Data Processing’s shares have surged 29.7% so far this year. The company has a long-term earnings growth of 12%.FactSet Research Systems has an expected earnings growth rate of around 9% for the current fiscal year. The company has a trailing four-quarter earnings surprise of 2.4%, on average.FactSet Research Systems’ shares have surged 37.4% so far this year. The company has a long-term earnings growth of 8.5%. Tech IPOs With Massive Profit Potential In the past few years, many popular platforms and like Uber and Airbnb finally made their way to the public markets. But the biggest paydays came from lesser-known names. For example, electric carmaker X Peng shot up +299.4% in just 2 months. Think of it this way… If you had put $5,000 into XPEV at its IPO in September 2020, you could have cashed out with $19,970 in November. With record amounts of cash flooding into IPOs and a record-setting stock market, this year’s lineup could be even more lucrative.See Zacks Hottest Tech IPOs Now >>Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report Automatic Data Processing, Inc. (ADP): Free Stock Analysis Report Avis Budget Group, Inc. (CAR): Free Stock Analysis Report FactSet Research Systems Inc. (FDS): Free Stock Analysis Report S&P Global Inc. (SPGI): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research