Based on the news about the stock in the past five trading days, please predict the rise or fall of the stock in the next trading day. If the stock is predicted to rise in the next trading day, please output [Rise], if the stock is predicted to fall in the next trading day, please output [Decrease].

Date:2018-09-21, Stock:COST, The news for the past five days is as follows:
2018-09-14: NEWS1: Is Kroger's Post-Earnings Pullback a Buying Opportunity?.NEWS2: Is Kroger's Post-Earnings Pullback a Buying Opportunity?.NEWS3: 5 Defensive Retail Companies Gurus Agree On.NEWS4: Market Close Report: NASDAQ Composite index closes at 8,010.04 down -3.67 points.NEWS5: Market Close Report: NASDAQ Composite index closes at 8,010.04 down -3.67 points.NEWS6: Noteworthy Friday Option Activity: COST, VMW, ACXM.NEWS7: Noteworthy Friday Option Activity: COST, VMW, ACXM.NEWS8: Is Kroger&apos;s Post-Earnings Pullback a Buying Opportunity?.NEWS9: The Lovesac Company (LOVE) Q2 2019 Earnings Conference Call Transcript.NEWS10: Why Wells Fargo Downgraded Costco Stock.NEWS11: Target (TGT) Gears Up for Holiday Season, Hires 1,20,000.NEWS12: Target (TGT) Gears Up for Holiday Season, Hires 1,20,000.NEWS13: Costco Posting Notable Loss After Downgrade By Wells Fargo.NEWS14: Costco Posting Notable Loss After Downgrade By Wells Fargo.NEWS15: Nasdaq 100 Movers: COST, ADBE.NEWS16: Nasdaq 100 Movers: COST, ADBE.NEWS17: Costco Shares ‘Priced to Perfection,’ Says Analyst.NEWS18: Wells Fargo downgrades Costco.NEWS19: Costco Has More Risk Than Upside, Wells Fargo Says In Downgrade.NEWS20: Target a Top Ranked SAFE Dividend Stock With 2.9% Yield (TGT).NEWS21: Target a Top Ranked SAFE Dividend Stock With 2.9% Yield (TGT).NEWS22: 7 Stocks to Buy to Actually Make America Great Again.NEWS23: 7 Stocks to Buy to Actually Make America Great Again.NEWS24: Stocks making the biggest move premarket: ADBE, AMZN, LB, HAS, DNKN & more.NEWS25: Surging Costco stock downgraded by Wells Fargo because this &apos;may be as good as it gets&apos;.NEWS26: Surging Costco stock downgraded by Wells Fargo because this 'may be as good as it gets'.
2018-09-17: NEWS1: Costco’s Big Run Raises Valuation Worries.NEWS2: Are Insiders Bearish About Costco Wholesale Corporation (NASDAQ:COST)?.NEWS3: Costco (COST) Takes Lead, Stays Ahead of Industry in 6 Months.NEWS4: Costco (COST) Takes Lead, Stays Ahead of Industry in 6 Months.NEWS5: Bullish Case For Costco, Sprouts Comes To An End At Barclays.NEWS6: Costco (COST) Takes Lead, Stays Ahead of Industry in 6 Months.NEWS7: Costco's 'parabolic charts only end one way ... badly,' says top market watcher.
2018-09-18: NEWS1: No Rating Changes for Kroger for Now.NEWS2: Why Analysts Are Downgrading Costco Stock.NEWS3: Better Buy: Costco Wholesale Corporation vs. Target.NEWS4: Better Buy: Costco Wholesale Corporation vs. Target.NEWS5: See what the IHS Markit Score report has to say about Costco Wholesale Corp..NEWS6: Better Buy: Costco Wholesale Corporation vs. Target.
2018-09-19: NEWS1: Mastercard and Visa Settle Card Fee Suit.NEWS2: Why Costco’s Bull Run Will End Soon: Piper Jaffray.
2018-09-20: NEWS1: Have Analysts Become Too Bearish on Costco Stock?.NEWS2: A Look At Costco's Valuation.NEWS3: A Look At Costco's Valuation.NEWS4: See what the IHS Markit Score report has to say about Costco Wholesale Corp..

Answer: Rise