• Stephen Curry

Stephen Curry (Photo : Reuters/Kyle Terada)

Sportswear company Under Armour credited NBA MVP Stephen Curry and two other athlete-endorsers for its 29% second quarter growth in revenues from the same period last year.

That gave the company a 7.3% spike jump in its stock price.

Under Armour CEO Kevin Plank said that their biggest growth categories came in three areas, namely: basketball shoes and apparel, women's products, and golf-related items

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The tow other athletes that endorsed their products were ballerina Misty Copeland and golfer Jordan Spieth.

Plank said that the three have transcended their sports to become known by just their first names: Stephen, Misty and Jordan.

One of Under Armour's major initiatives has been in basketball apparel, especially shoes, with Curry driving this section of the business faster than expected.

Under Armour's revenue for the footwear business went up 40% from the same quarter last year, to $154 million.

While Nike dominates the basketball-shoe business--helped by endorsers Michael Jordan and LeBron James, Under Armour got a huge boost by Curry's success in the previous season that led to the 2015 NBA championship.

That propelled their Curry One to be among the most popular shoe line of the period, especially on the company's e-commerce site.

Curry shot 23.8 points, dished out 7.7 assists and grabbed 4.3 rebounds per game en route to the regular season MVP award. During All-Star weekend, he also topped the 3-point shootout.  

Copeland, who recently became the first black woman to be named principal ballerina at the prestigious American Ballet Theater, drove an increase in sales of women's apparel.

Then Spieth won his first two major championships this year-- the Masters and the US Open, and came close to winning at the British Open in Scotland. 

Under Armour surpassed Adidas as the second-largest sportswear firm in the US last year has seen substantial growth in other parts of the globe.