The "Halftime Report" traders focused on earnings due after Tuesday's market close — with just hours left in the trading day.

Jim Lebenthal was watching Costco Wholesale Corporation.

Jon Najarian zeroed in on Smith & Wesson.

Trader disclosure: On Dec. 8, 2015, the following stocks and commodities mentioned or intended to be mentioned on CNBC's "Halftime Report" were owned by the "Halftime Report" traders: Jim Lebenthal is long AAPL, BA, C, CSCO, DCO, EEQ, GAIA, GM, INTC, JCP, MPC, OA, ORBC, PFE, QCOM, QRVO, SPLS, TIF, TRN, WGO. Stephanie Link is long AAPL, BAC, BRCM, CRM, CXO, DAL, DD, DG, DLPH, EL, ESRX, GE, GILD, GOOG, GOOGL, HPQ, INTC, JPM, LEA, LLY, LPX, LULU, MCD, MS, PPG, PRU, RHT, SBUX, SLB, SWK, SYF, TJX, UNH, V, VFC, WBA, WFC, WHR, ZION. Jon Najarian is long PPG he is long calls AAPL, AVGO, BAX, CA, CHK, CMCSA, DAL, EEM, FB, JAH, JBLU, KHC, LUV, MCK, MDLZ, MSFT, MU, NVDA, POST, PPG, QCOM, RLL, SU, TA, TSM, XLNX. Pete Najarian is long AAPL, AMAT, BAC, BMY, BP, CSX, DIS, DISCA, DKS, FOXA, GE, KKR, KO, MRK, PEP, PHM he is long calls A, AAL, ABX, BAC, BEE, DAL, DOW, EMR, GLW, LC, LULU, MOS, MRK, MSFT, PBR, UAL, TA, TSN, UA VZ, XLF, XLK, GDX WYNN, ZIOP He is long puts FCX, MRO, WFT, X.