Question: Are both TD Securities and Wachovia Securities investment banks?

full_context: Document 1: Toronto Stock Exchange: Toronto Stock Exchange (often abbreviated as TSX) is one of the world's largest stock exchanges. It is the ninth largest exchange in the world by market capitalization. Based in Toronto, it is owned by and operated as a subsidiary of the TMX Group for the trading of senior equities. A broad range of businesses from Canada and abroad are represented on the exchange. In addition to conventional securities, the exchange lists various exchange-traded funds, split share corporations, income trusts and investment funds. More mining and oil and gas companies are listed on Toronto Stock Exchange than any other stock exchange.
Document 2: Wells Fargo Building (Augusta): The Wells Fargo Building,formerly known as the Wells Fargo Bank Center, is a commercial and financial skyscraper in Augusta, Georgia, in the United States. After its completion, the building was the tallest building in Augusta from 1967 to 1976, when the Lamar Building surpassed it due to the completion of the penthouse. Today, it is the third tallest building in the city. The building's exterior surface is made completely in aluminum steel glass. At the time of its completion, the building was named the Georgia Railroad Bank & Trust. In 1989, the building's name was changed to the Wachovia Bank Center, making it the official headquarters of Wachovia in the eastern part of Georgia and the Central Savannah River Area. In 2008, the building's name was changed again to the Wells Fargo Building. It is now the official headquarters of Wells Fargo in the Augusta region.
Document 3: Wells Fargo Rail: Wells Fargo Rail is the new name for the historic First Union Rail Corporation, along with the combined business of the former GE Capital Rail Services, which Wells Fargo purchased from GE in September 2015. The new company/name took effect January 1, 2016, and is based in Rosemont, Illinois, USA. Wells Fargo Rail is the largest railcar and locomotive leasing company in North America with over 175,000 railcars and 1,800 locomotives available.
Document 4: Prudential Securities: Prudential Securities, also formerly known as Prudential Securities Incorporated (PSI), was the financial services arm of the insurer, Prudential Financial. In 2003, Prudential Securities was merged into Wachovia Securities, a division of Wachovia Bank.
Document 5: A. G. Edwards: A.G. Edwards, Inc. was an American financial services holding company; its principal wholly owned subsidiary was A.G. Edwards & Sons, Inc., which operated as a full-service securities broker-dealer in the United States and Europe. Firm was acquired by Wachovia Securities, which later was acquired by Wells Fargo Advisors. The firm provided securities and commodities brokerage, investment banking, trust services, asset management, financial and retirement planning, private client services, investment management, and other related financial services to individual, governmental, and institutional clients.
Document 6: ICICI Bank Canada: ICICI Bank Canada is a wholly owned subsidiary of ICICI Bank Limited, India’s largest private sector bank. ICICI Bank Canada’s corporate office is located in Toronto, Ontario. Established in December 2003, ICICI Bank Canada is a full-service direct bank with an asset base of about $6.5 billion as at December 31, 2016. It is governed by Canada’s Bank Act and operates under the supervision of the Office of the Superintendent of Financial Institutions. The bank has eight branches in Canada: one in Calgary, Alberta; one in Surrey, British Columbia; and six in the Greater Toronto Area, Ontario.
Document 7: TD Securities: TD Securities is a Canadian investment bank and financial services provider that offers advisory and capital market services to corporate, government, and institutional clients worldwide. The firm provides expertise in corporate and investment banking, capital markets, and global transaction services. It is the investment bank of Toronto-Dominion Bank Group, and has offices in 18 cities worldwide with over 3,000 employees.
Document 8: Investment One: Investment One Financial Services Limited was incorporated in 2008 as GTB Asset Management, a wholly owned subsidiary of Guaranty Trust Bank Plc, is licensed by the Securities & Exchange Commission Nigerian Stock Exchange (NSE) to provide several capital market services, including acting as trustees to bond issuance programmes and collective investment schemes. Following recent reforms in the banking industry initiated by the Central Bank of Nigeria, GTBank recently divested its ownership through a management buyout.The Company’s name then changed to Investment One Financial Services.
Document 9: Morgan Stanley: Morgan Stanley (NYSE: [ MS] ) is a leading global financial services firm providing investment banking, securities, wealth management and investment management services. It is headquartered at 1585 Broadway in the Morgan Stanley Building, Midtown Manhattan, New York City. With offices in more than 42 countries and more than 55,000 employees, the firm's clients include corporations, governments, institutions and individuals.
Document 10: Wachovia Securities: Wachovia Securities was the trade name of Wachovia's retail brokerage and institutional capital markets and investment banking subsidiaries. Following Wachovia's merger with Wells Fargo and Company on December 31, 2008, the retail brokerage became Wells Fargo Advisors on May 1, 2009 and the institutional capital markets and investment banking group became Wells Fargo Securities on July 6, 2009.
Document 11: Chase Bank: JPMorgan Chase Bank, N.A., doing business as Chase Bank, is a national bank that constitutes the consumer and commercial banking subsidiary of the U.S. multinational banking and financial services holding company, JPMorgan Chase. The bank was known as Chase Manhattan Bank until it merged with J.P. Morgan & Co. in 2000. Chase Manhattan Bank was formed by the merger of the Chase National Bank and The Manhattan Company in 1955. The bank has been headquartered in Columbus, Ohio since its merger with Bank One Corporation in 2004. The bank acquired the deposits and most assets of Washington Mutual.
Document 12: Morgan Stanley: Morgan Stanley (NYSE: [ MS] ) is a leading global financial services firm providing investment banking, securities, wealth management and investment management services. It is headquartered at 1585 Broadway in the Morgan Stanley Building, Midtown Manhattan, New York City. With offices in more than 42 countries and more than 55,000 employees, the firm's clients include corporations, governments, institutions and individuals.
Document 13: Jefferies Group: Jefferies LLC is an American global investment bank and institutional securities firm headquartered in New York. The firm provides clients with capital markets and financial advisory services, institutional brokerage, securities research, and asset management. This includes mergers and acquisitions, restructuring, and other financial advisory services.
Document 14: Ladenburg Thalmann: Ladenburg Thalmann Financial Services, a NYSE MKT-listed company, is a diversified financial services company with two primary business lines: one is independent brokerage and advisory, and the other is investment banking and capital markets. More specifically, the company is engaged in investment banking, equity research, institutional sales and trading, independent brokerage and advisory services, asset management services and trust services through its principal subsidiaries, Ladenburg Thalmann & Co. Inc., Securities America, Investacorp, Inc., Triad Advisors, Inc., Ladenburg Thalmann Asset Management Inc. and Premier Trust, Inc. It is based in Miami, Florida.
Document 15: Wells Fargo: Wells Fargo & Company is an American international banking and financial services holding company headquartered in San Francisco, California, with "hubquarters" throughout the country. It is the world's second-largest bank by market capitalization and the third largest bank in the U.S. by assets. In July 2015, Wells Fargo became the world's largest bank by market capitalization, edging past ICBC, before slipping behind JP Morgan Chase in September 2016, in the wake of a scandal involving the creation of over 2 million fake bank accounts by Wells Fargo employees. Wells Fargo surpassed Citigroup Inc. to become the third-largest U.S. bank by assets at the end of 2015. Wells Fargo is the second-largest bank in deposits, home mortgage servicing, and debit cards. The firm's primary U.S. operating subsidiary is national bank Wells Fargo Bank, N.A., which designates its main office as Sioux Falls, South Dakota.
ground_truth: yes