The "Fast Money" traders shared their first moves for the market open.

Tim Seymour was a buyer of General Motors

Brian Kelly was a buyer of the Oil & Gas ETF

Steve Grasso was a buyer of Cronos

Guy Adami was a buyer of Twitter

Trader disclosure: On September 18, 2018 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, ACB.TO, APC, APH.TO, BABA, BAC, BIDU, BX, C, CCJ, CLF, CMG, CRON, CSCO, CX, DAL, DPZ, DVYE, EA, EEM, ERJ, EUFN, EWM, FB, FXI, GE, GILD, GM, GOOGL, GWPH, HAL, INTC, JD, LEAF, MAT, MCD, MO, MOS, MPEL, NKE, OGI, PAK, PHM, PYPL, RH, RL, SBUX, SQ, T, TER, TIF, TGOD, TRST, TWTR, UA, UAL, VALE, VIAB, VOD, X, XLE, XRT, YNDX, 700.HK. Tim is short IWM, RACE, SPY. Tim's firm is long CGC, HEXO, TLRY, CRON, APH. Brian Kelly is long AMD, CBOE, CME, GCAP, GS, HIVE, IBM, MCB, MSFT, MU, NVDA, OSTK, ORCL, RHT, SAP, SHG, SHOP, SIVB, SQ, STX, TSM, WU, Bitcoin, Ethereum, Litecoin, Cardano, Bitcoin Cash, Stellar, EOS, STORM. Brian Kelly is long AMD, CBOE, CME, GCAP, GS, HIVE, IBM, MCB, MSFT, MU, NVDA, OSTK, ORCL, RHT, SAP, SHG, SHOP, SIVB, SQ, STX, TSM, WU, Bitcoin, Ethereum, Litecoin, Cardano, Bitcoin Cash, Stellar, EOS, STORM. Steve Grasso is long stock AAPL, BABA, BHC, CAR, CGC, EVGN, GE, JCP, LEN, MJNA, OSTK, PFE, RAD, SNAP, SQ, T, TWTR. Grasso owns Callable Trigger contingent yield note linked to SPX, RTY, and MXEA. Grasso's kids own EFA, EFG, EWJ, IJR, SPY, TUR. Grasso's firm is long stock BGCP, COTY, CTL, CUBA, DIA, DVN, F, GE, GLD, GM, GSK, HPQ, IAU, IBM, ICE, KHC, LEN, MAT, MSFT, MJNA, NE, QCOM, QQQ, RIG, SNAP, SNGX, SPY, T, WDR, WHR, XRX, ZNGA. Guy Adami is long CELG, EXAS, GDX, INTC. Guy Adami's wife, Linda Snow, works at Merck.