Shopify, Under Armour And More: 'Fast Money Halftime Report' Picks For May 28

On CNBC's "Fast Money Halftime Report," Stephanie Link recommended a long position in Under Armour Inc Class A UAA. She thinks margins are going in the right direction and people are loyal to the brand.

Jon Najarian noticed some bullish call options activity in SPDR Gold Trust GLD. Traders were buying the August 127 calls in the name and he decided to follow the trade

Learn from Jon Najarian and other traders in person at the Benzinga Global Trading & Investing Summit June 20 in New York City!

Kevin O'Leary is a buyer of iShares NASDAQ Biotechnology Index IBB. He said there was a lot of bad news and sometimes that's a good time to get back in the stock.

Jim Lebenthal wants to buy Boeing Co BA.

Josh Brown would buy Walmart Inc WMT. Its chart is his favorite mega-cap chart. He expects to see a major breakout on the upside.

Joe Terranova thinks Shopify Inc SHOP should be bought.