The "Fast Money" traders shared their first moves for the market open.
Tim Seymour was a buyer of Nike.
Karen Finerman was a buyer of the iShares MSCI Emerging Markets ETF.
Steve Grasso was a buyer of Olin Corp.
Guy Adami was a buyer of Micron.
Trader disclosure: On December 21, 2017, the following stocks and commodities mentioned or intended to be mentioned on CNBC's "Fast Money" were owned by the "Fast Money" traders: Tim Seymour is long AMZA, APC, BABA, BAC, C, CCJ, CLF, CMG, CSCO, DAL, DPZ, DVYE, EEM, EUFN, EWM, FB, FXI, GE, GILD, GM, GOOGL, HAL, INTC, LOW, M, MAT, MCD, MO, MOS, MPEL, PHM, PYPL, RAI, RH, RL, SBUX, SQ, T, 700.HK, TWTR, UA, UAL, VALE, VIAB, VOD, VRX, XLE, XRT. Tim is short IWM, RACE, SPY. Karen Finerman is long AAL, BAC, BOT Bitcoin, Bitcoin Cash, Ethereum, C, DAL, DVYE, DXJ, EEM, EPI, EWW, DVYE, FB, FL, FNAC, GMLP, GLNG, GOGO, GOOG, GOOGL, JPM, LYV, KFL, KORS, KORS calls, KORS puts, MA, SEDG, SPY puts, TACO, URI, WIFI, WFM.
Her firm is long ANTM, C, FB, FNAC, GOOG, GOOGL, GLNG, GMLP, JPM, JPM calls, KORS puts, LYV, NXPI, SPY puts, SPY put spreads, WIFI, UAL. Her firm is short ESRX, IWM, MDY, VRX calls.
Bitcoin and Ethereum are in her kids' Trust. Steve Grasso's firm is long stock AMD, CMG, COTY, CTL, CUBA, DIA, F, GE, GLD, HPQ, IAU, IBM, ICE, M, MAT, MJNA, MSFT, NE, QCOM, RIG, SNAP, SNGX, SPY, T, UA, WDR, ZNGA. Grasso is long stock AAPL, BABA, CAR, EVGN, JCP, MJNA, MON, OSTK, PHM, SQ, T, TWTR, VRX. Grasso owns Callable Trigger contingent yield note linked to SPX RTY and MXEA. Grasso's kids own EFA, EFG, EWJ, IJR, SPY. Guy Adami is long CELG, EXAS, GDX, INTC. Guy Adami's wife, Linda Snow, works at Merck.