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:2019-10-31, Stock:COST, The news for the past five days is as follows:
2019-10-24: NEWS1: Costco (COST) Stock Sinks As Market Gains: What You Should Know.NEWS2: Top Research Reports for Costco, Booking & PNC Financial.NEWS3: Costco, First Solar, Uber and Lyft highlighted as Zacks Bull and Bear of the Day.NEWS4: Is Costco Wholesale (COST) Outperforming Other Retail-Wholesale Stocks This Year?.NEWS5: What Type Of Shareholder Owns Costco Wholesale Corporation's (NASDAQ:COST)?.NEWS6: Bull of the Day: Costco (COST).
2019-10-25: NEWS1: Sell Or Hold Costco Stock? Your Time Horizon Holds The Answer.NEWS2: The Zacks Analyst Blog Highlights: Costco, Booking Holdings, PNC Financial, The Southern Company and General Dynamics.NEWS3: 20 Large-Cap Dividend Stocks With More Cash Than Debt.
2019-10-28: NEWS1: Time to Buy Amazon (AMZN) Stock at a Discount After Disappointing Earnings?.NEWS2: 8 Consumer Stocks to Buy before Thanksgiving.NEWS3: Target Stock: Rally Over, Time to Cool Off?.
2019-10-29: NEWS1: How Tuesday Morning (TUES) Looks Just Ahead of Q1 Earnings.NEWS2: Berkshire Hathaway’s Charlie Munger Sees Costco Stake Surge to $50 Million.
2019-10-30: NEWS1: Costco (COST) Outpaces Stock Market Gains: What You Should Know.NEWS2: 10 quot;Autopayquot; Dividend Stock Picks to Subscribe To.NEWS3: No Trick, 3 Halloween ETF & Stock Treats for Investors.NEWS4: PriceSmart (PSMT) Q4 Earnings Decline Y/Y, Revenues Rise.

Answer: Decrease