The "Halftime Report" traders highlighted the companies they're watching on upcoming earnings and delivered their top trades.

Stephanie Link said Express Scripts is interesting because of all the mergers and acquisitions activity in the space. She also liked Mastercard.

Pete Najarian was a bull on Gilead, GlaxoSmithKline and Mastercard.

Trader disclosure: On July 28, 2015, the following stocks and commodities mentioned or intended to be mentioned on CNBC's "Halftime Report" were owned by the "Halftime Report" traders: Pete Najarian is long AMAT, AAPL, BAC, BMY, BP, CSX, DISCA, DKS, FOXA, GE, KKR, KO, LLY, MRK, PEP, PFE, he is long calls AAPL, AGNC, AMKR, AXP, BAC, C, CRM, CY, DAL, DVN, ETFC, LC, LM, LULU, LVS, MU, PNR, RF, UAL, USB, VZ, WYNN, XLF, ZIOP, he is long puts AUY, OAS, RIG. Stephanie Link is long AAPL, BAC, CHKP, DAL, ESRX, GILD, HIG, JPM, LLY, LOW, LULU, MA, MCD, MS, PRU, SWK, TIF, WFC. Joe Terranova is long VRTS.