Trader disclosure: On April 20, 2015, the following stocks and commodities mentioned or intended to be mentioned on CNBC's "Fast Money" were owned by the "Halftime Report" traders: Pete Najarian is long AMAT, AAPL, BABA, BAC, BMY, BP, CSX, DISCA, FOXA, GE, KKR, KO, LLY, LOCO, MBLY, MRK, PEP, PFE, he is long calls AA, AAL, AAPL, BK, BX, CBS, CELG, CIEN, CSX, DAL, DB, EEM, EJ, F, FL, GE, GS, HSBC, HZNP, IMAX, JBLU, JOY, KO, LEN, MAC, MYL, NEE, NTAP, NUAN, OC, PFE, SYY, TEVA, TSX, UAL, UUP, VZ, XLF, XOM, ZIOP. Today he bought UUP calls. Jon Najarian is long ABT, ADP, ADT, AMZN, BBY, BSX, BURL, EQT, EVEP, EXXI, FEYE, GE, HSBC, HUN, HZNP, IMAX, MCD, MDRX, MRVL, MW, NEE, NRG, OAS, PG, POST, RHT, SBUX, SCTY, SIMO, SIRI, SKX, SOL, SYK, TEVA, TTWO, TWX, WMB, XLI, YPF, ZIOP, he is long calls AKS, APD, BABA, BBY, CTXS, EQT, EVEP, EWJ, FB, GE, GES, GRPN, GSK, IDTI, IMAX, MAS, MCD, MDRX, MET, MYL, NTAP, NUAN, OAS, OC, PG, PPC, PRU, RAD, SAP, SIMO, SKX, SNDK, TAP, TLT, TWX, XLK, he is long puts TLT. Today he bought OC, MAS, TLT, ZIOP. Josh Brown is long AAPL, CME, DE, DGRE, DIS, DNKN, FCX, FSLR, GBX, MBLY, SAM, SHAK, SPWR, TNET, TWTR, VWO, XLE, XON. Joe Terranova is long VRTS.