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:2018-11-08, Stock:XEL, The news for the past five days is as follows:
2018-11-01: NEWS1: The Smartest People on Wall Street Are Buying These 3 Stocks -- Should You Follow?.NEWS2: The Smartest People on Wall Street Are Buying These 3 Stocks -- Should You Follow?.NEWS3: The Smartest People on Wall Street Are Buying These 3 Stocks -- Should You Follow?.NEWS4: Factors of Influence in 2018, Key Indicators and Opportunity within BP p.l.c, Nokia, Xcel Energy, Employers, Utah Medical Products, and Tractor Supply — New Research Emphasizes Economic Growth.
2018-11-02: nan
2018-11-05: nan
2018-11-06: NEWS1: Xcel Energy to Purchase Mankato Energy Center.NEWS2: Edited Transcript of XEL earnings conference call or presentation 25-Oct-18 2:00pm GMT.
2018-11-07: NEWS1: Xcel Energy Announces a $400MM Public Offering of Common Stock with a Forward Component.NEWS2: Southern Company Beats Q3 Estimates, Maintains Vogtle Schedule.NEWS3: Xcel plans to buy Mankato power plant for $650 million.

Answer: Decrease