Second half trades as markets sell off

The "Halftime Report" traders delivered their trades in the middle of a market sell off.

Steve Weiss focused on oil.

Josh Brown had his eye on big pharma and biotech, two areas getting crushed Wednesday.

Jon Najarian was a buyer of Ally Financial on "unusual activity."

Pete Najarian was watching the broader market volatility.

Trader disclosure: On Dec. 9, 2015, the following stocks and commodities mentioned or intended to be mentioned on CNBC's "Halftime Report" were owned by the "Halftime Report" traders: Steve Weiss is long AAL,C, DLTR, JD. Josh Brown is long AAPL, BABA, DE, DNKN, FB, JMBA, LOW, NFLX, SAM, SHAK, SPWR, TWTR, XLE, XON. Jon Najarian is long KMI, PPG, SWHC he is long calls AAPL, AVGO, BAX, CA, CHK, CMCSA, DAL, EEM, FB, JAH, JBLU, KHC, KMI, LUV, MCK, MDLZ, MSFT, MU, NVDA, POST, PPG, QCOM, RLL, SU, SWHC, TA, TSM, WFM, 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, 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.