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:2018-12-26, Stock:COST, The news for the past five days is as follows:
2018-12-18: NEWS1: The Klein Law Firm Reminds Investors of Class Actions on Behalf of Shareholders of COST, NKTR, GSKY, RBBN (SONS) and MGI.NEWS2: Under Armour Tanks on Guidance.NEWS3: Costco Stock Looks Good After Its Post-Earnings Plunge.NEWS4: Costco Stock Looks Good After Its Post-Earnings Plunge.NEWS5: See what the IHS Markit Score report has to say about Costco Wholesale Corp..NEWS6: Costco Stock Looks Good After Its Post-Earnings Plunge.NEWS7: SHAREHOLDER ACTION NOTICE: The Schall Law Firm Announces the Filing of a Class Action Lawsuit Against Costco Wholesale Corporation and Encourages Investors with Losses in Excess of $100,000 to Contact the Firm.
2018-12-19: NEWS1: Costco (COST) Stock Moves -0.78%: What You Should Know.NEWS2: SHAREHOLDER ALERT: COST NKTR WBT SYF PPDF BA XPO TDOC: The Law Offices of Vincent Wong Reminds Investors of Important Class Action Deadlines.NEWS3: SHAREHOLDER ALERT - Bronstein, Gewirtz & Grossman, LLC Reminds Investors of Class Action Against Costco Wholesale Corporation (COST) & Lead Plaintiff Deadline: January 7, 2019.NEWS4: COSTCO SHAREHOLDER ALERT: CLAIMSFILER REMINDS INVESTORS WITH LOSSES IN EXCESS OF $100,000 of Lead Plaintiff Deadline in Class Action Lawsuit Against Costco Wholesale Corporation - COST.NEWS5: UPCOMING DEADLINE ALERT: The Schall Law Firm Announces the Filing of a Class Action Lawsuit Against Costco Wholesale Corporation and Encourages Investors with Losses in Excess of $100,000 to Contact the Firm.
2018-12-20: NEWS1: Can Nike Stock Save Christmas?.NEWS2: Can Nike Stock Save Christmas?.NEWS3: Notable Thursday Option Activity: COST, ALB, BAC.NEWS4: Notable Thursday Option Activity: COST, ALB, BAC.NEWS5: Why the Market Repriced Costco Shares.NEWS6: Why the Market Repriced Costco Shares.NEWS7: Lessons Learned From the Rise and Fall of Blue Apron Stock.NEWS8: CLASS ACTION UPDATE for COST, RBBN (SONS) and CURO: Levi & Korsinsky, LLP Reminds Investors of Class Actions on Behalf of Shareholders.NEWS9: Better Buy: Costco vs. Target.NEWS10: Better Buy: Costco vs. Target.NEWS11: Why the Market Repriced Costco Shares.NEWS12: Better Buy: Costco vs. Target.NEWS13: Can Nike Stock Save Christmas?.NEWS14: See what the IHS Markit Score report has to say about Costco Wholesale Corp..NEWS15: SHAREHOLDER ALERT: Pomerantz Law Firm Reminds Shareholders with Losses on their Investment in Costco Wholesale Corporation of Class Action Lawsuit and Upcoming Deadline – COST.NEWS16: Costco (COST) Stock Moves -0.78%: What You Should Know.NEWS17: Costco (COST) Stock Moves -0.78%: What You Should Know.
2018-12-21: NEWS1: SHAREHOLDER ALERT: Pomerantz Law Firm Reminds Shareholders with Losses on their Investment in Costco Wholesale Corporation of Class Action Lawsuit and Upcoming Deadline - COST.NEWS2: SHAREHOLDER ALERT: COST NKTR TX APHA: The Law Offices of Vincent Wong Reminds Investors of Important Class Action Deadlines.NEWS3: IMPORTANT DEADLINE REMINDER: The Schall Law Firm Announces the Filing of a Class Action Lawsuit Against Costco Wholesale Corporation and Encourages Investors with Losses in Excess of $100,000 to Contact the Firm.NEWS4: Super Saturday the Biggest Shopping Day of 2018? 4 ETF Deals.
2018-12-24: NEWS1: Don't Blame Amazon for Blue Apron's Debacle.NEWS2: Don't Blame Amazon for Blue Apron's Debacle.NEWS3: EARLY JANUARY DEADLINE ALERT: The Schall Law Firm Announces the Filing of a Class Action Lawsuit Against Costco Wholesale Corporation and Encourages Investors with Losses in Excess of $100,000 to Contact the Firm.NEWS4: Costco Stock Could Rise After a Recent Dip, Says Analyst.NEWS5: 3 Reasons Nearly Everyone Renews Their Costco Membership.NEWS6: 3 Reasons Nearly Everyone Renews Their Costco Membership.NEWS7: 3 Reasons Nearly Everyone Renews Their Costco Membership.NEWS8: Consumers disconnected from markets: Consultant.NEWS9: See what the IHS Markit Score report has to say about Costco Wholesale Corp..

Answer: Rise