Your first trade for Tuesday, August 21

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

Tim Seymour was a buyer of Canopy Growth

Brian Kelly was a buyer of SPDR Gold Shares

Steve Grasso was a buyer of Lennar

Guy Adami was a buyer of HollyFrontier Corp

Trader disclosure: On August 20, 2018 the following stocks and commodities mentioned or intended to be mentioned on CNBC's "Fast Money" were owned by the "Fast Money" traders: TimSeymour 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, PAK, PHM, PYPL, RH, RL, SBUX, SQ, T, TIF, TWTR, UA, UAL, VALE, VIAB, VOD, X, XLE, XRT, YNDX, 700.HK. Tim is short IWM, RACE, SPY. 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, CAR, EVGN, GE, JCP, LEN, MJNA, MON, OSTK, PFE, RAD, SNAP, 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, TUR. Grasso's firm is long stock BGCP, COTY, CTL, CUBA, DIA, F, GE, GLD, GM, GSK, HPQ, IAU, IBM, ICE, LEN, MAT, MJNA, NE, QCOM, RIG, SNGX, SPY, T, TMUS, WDR, WHR, XRX, ZNGA. Guy Adami is long CELG, EXAS, GDX, INTC. Guy Adami's wife, Linda Snow, works at Merck.