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

Tim Seymour was a buyer of UnitedHealth.

Karen Finerman was a seller of the High Yield Corporate Bond ETF.

Dan Nathan was a seller of the Semiconductor ETF.

Steve Grasso was a buyer of Lennar. 

Disclosure

Trader disclosure: Karen Finerman's firm is long ANTM, C, CBS, CPRI, FB, FDX, FL, FNAC, GOOG, GOOGL, GLNG, GMLP, HD, JPM, LYV, REZI, RRGB, SPY puts, SPY put spreads, TBT, TGT, URI, WIFI. Her firm is short HYG, IWM, LQD. Her firm is short TGT calls. Karen Finerman is long AAL, AYR/CN BAC, BOT Bitcoin, Bitcoin Cash, Ethereum, C, CAT, CBS, CPRI, DAL, DVYE, DXJ, EEM, EPI, EWW, EWZ, DVYE, FB, FL, GM, GMLP, GLNG, GOOG, GOOGL, JPM, LOW, LYV, KFL, MA, MTW, REAL, REZI, SEDG, TACO, WIFI, WFM. Karen Finerman is long FB spread calls. Karen Finerman is long GOOG put spreads. Karen Finerman is long SPY puts. Bitcoin and Ethereum are in her kids' Trust. Dan is Long TLT Dec call spread. XLF Oct put spread. XRT Oct put spread. SMH Nov put spread. Steve Grasso is long AAPL, BHC, CAR, EVGN, GE, LEN, MJNA, MSFT, OLN, PFE, T, TSE, ULTA, WRK Grasso owns Callable Trigger contingent yield note linked to SPX, RTY, and MXEA. Grasso's kids own EFA, EFG, EWJ, IJR, SPY, TUR. Steve Grasso's firm is long BIOS, COUP, CPB, CUBA, DIA, F, FDX, GDX, GE, GLD, GOLD, GSK, HPQ, IAU, IBM, ICE, KHC, MO, MSFT, NEM, NYCB, QCOM, QQQ, SNAP, SNGX, SPY, SQQQ, T, TAP, TGT, WAB, WDR, WRK. Tim Seymour is long AMZN, AAPL, ACBFF, ACRGF, AMZA, ACB, APC, APH, BA, BABA, BAC, BIDU, BX, C, CCJ, CGC, CLF, CMG, CNTTF, CRLBF, CRON, CSCO, CWEB, CURLF, DAL, DIS, DPZ, DVYE, DYME, EEM, EUFN, EWM, FB, FDX, FXI, GE, GILD, GM, GOOGL, GTBIF,GTII, GWPH, HAL, HEXO, HK.APH, HRVOF, HVT, HYYDF, INTC, ITHUF, JD, KHRNF, KRO, KSHB, LEAF, LNTH, MAT, MCD, MJNE, MO, MOS, MPEL, MPX, MRMD, NKE, OGI, ORGMF, OTC, PAK, PHM, PYPL, RH, RL, SBUX, SQ, STZ, T, TER, TIF, TGOD, TNYBF, TRSSF, TRST, TWTR, UA, UAL, VALE, VIAB, VOD, X, XRT, YNDX, 700. Tim is short IWM, RACE, SPY, TSLA. Tim's firm is long CGC, HEXO, CRON, APH. Tim is on the advisory board of Green Organic Dutchman, Heaven, Kushco, Dionymed, Tikun Olam, CCTV, and Canndescent. Tim is the portfolio manager of the Cannabis ETF — CNBS. Stocks in the ETF must be legal in the countries in which they operate: CGC.N, ACB.TO, GWPH.O, OGI.V, CWEB, LABS.CCP, APH.TO, RIV.V, CF.TO, ZYNE.OQ, VFF.TO, CARA.O, NEPT US, KHRN.V, FIRE.TO, TLRY.O, PCLO.V, WMD.V, ZENA.ALP, EMH.V, FLWR.CXX, IIPR.K, ARNA.O, HEXO.TO, VIVO.V, NRTH.V PKI, XLY.V, YCBD US, ALEF.TO