'Fast Money Halftime Report' Picks From October 23

On CNBC's "Fast Money Halftime Report," Stephanie Link said she bought more shares in Johnson & Johnson JNJ after it traded lower. She thinks fundamentals are very strong.

Pete Najarian is bullish on Mastercard Inc MA because he noticed some call options buying. He also likes Visa Inc V.

Jon Najarian noticed short-term call options activity in salesforce.com, inc. CRM. He likes the stock and he wants to buy it.

Joe Terranova would buy iShares Dow Jones US Medical Dev. IHI. He wants more exposure to the medical devices sector.