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:2021-04-21, Stock:TMO, The news for the past five days is as follows:
2021-04-14: NEWS1: Thermo Fisher seeks to buy pharma services company PPD for $15 billion: report.NEWS2: Thermo Fisher Scientific (Finance I) B.V. -- Moody's announces completion of a periodic review of ratings of Thermo Fisher Scientific Inc..NEWS3: Thermo Fisher (TMO) Gets EUA for Amplitude/TaqPath COVID-19 Kit.
2021-04-15: NEWS1: SHAREHOLDER ALERT: WeissLaw LLP Investigates PPD, Inc..NEWS2: Thermo Expands Its Biggest Business With $17.4 Billion PPD Buyout.NEWS3: Thermo Fisher Scientific (Finance I) B.V. -- Moody's affirms Thermo Fisher Scientific's Baa1 senior unsecured rating; outlook stable.NEWS4: Thermo Fisher Bets Big on Clinical Research With a $17.4 Billion Deal.NEWS5: PPD ALERT: Bragar Eagel & Squire, P.C. Investigates Sale of PPD and Encourages Investors to Contact the Firm.NEWS6: Thermo Fisher CEO Sees PPD Buy as ‘All About Speed’ in New Drugs.NEWS7: UPDATE 4-Thermo Fisher expands pharma service business with $17.4 bln PPD acquisition.NEWS8: Thermo Fisher to buy PPD, in a cash deal valued at $17.4 billion including debt.NEWS9: Thermo Fisher Scientific to Acquire PPD, Inc., a Leading Clinical Research Organization.NEWS10: Thermo Fisher Scientific Agrees to Buy PPD for $17.4 Billion.NEWS11: Thermo Fisher Scientific in Talks to Buy Healthcare Company PPD.NEWS12: PRESS DIGEST- Wall Street Journal - April 15.
2021-04-16: NEWS1: SHAREHOLDER ALERT: Rigrodsky Law, P.A. Announces Investigation of PPD, Inc. Buyout.NEWS2: Jaguar Holding Company II, LLC -- Moody's places PPD's ratings under review for upgrade on proposed acquisition by Thermo Fisher.NEWS3: 5 ETFs to Make the Most of Thermo Fisher Deal to Buy PPD.NEWS4: Company News for Apr 16, 2021.NEWS5: PPD, Inc. (PPD) Soars 6.5%: Is Further Upside Left in the Stock?.NEWS6: What's in Store for Intuitive Surgical's (ISRG) Q1 Earnings?.
2021-04-19: NEWS1: Thermo Fisher (TMO) to Expand in Pharma Service With PPD Buyout.
2021-04-20: nan

Answer: Decrease