Question: Which financial institution, Laurentian Bank of Canada or Investec, has more listings on the London Stock Exchange and the Johannesburg Stock Exchange?

Context paragraphs:
Nigerian Stock Exchange: The Nigerian Stock Exchange (NSE) was established in 1960 as the Lagos Stock Exchange.  In 1977, its name was changed from the Lagos Stock Exchange to the Nigerian Stock Exchange.  As at March 7, 2017, it has 176 listed companies with a total market capitalization of about N8.5 trillion.  All listings are included in the Nigerian Stock Exchange All Shares index.  In terms of market capitalization, the Nigerian Stock Exchange is the third largest stock exchange in Africa.

Mondi: Mondi plc is an international packaging and paper group employing over 24,400 people with 102 operations across more than 30 countries, predominantly in central Europe, Russia and South Africa.  It is fully integrated across the packaging and paper value chain – from the growing of wood and the manufacture of pulp and paper (packaging paper and uncoated fine paper), to the conversion of packaging papers into corrugated packaging, industrial bags, extrusion coatings and release liner.  It has listings on the Johannesburg Stock Exchange and the London Stock Exchange and is a constituent of the FTSE 100 Index.

China Concepts Stock: China Concepts Stock is a set of stock of companies whose assets or earnings have significant activities in mainland China.  The People's Republic of China is undergoing major financial transformation, and many leading mainland-based companies have chosen to list themselves overseas to gain access to foreign investor capital.  Currently, there are China Concepts Stocks listed on several major stock exchanges around the globe, including the Hong Kong Stock Exchange (HKEx), Singapore Exchange (SGX), New York Stock Exchange (NYSE), NASDAQ, NYSE MKT (formerly known as the American Stock Exchange), London Stock Exchange (LSE), Euronext, and the Tokyo Stock Exchange (TSE).

Dundee Stock Exchange: The Dundee Stock Exchange was established in 1879.  In 1964, it merged into the Scottish Stock Exchange along with the Glasgow Stock Exchange, Edinburgh Stock Exchange, and Aberdeen Stock Exchange.  It continued to operate as a local branch until 1971, when the local exchanges closed completely.  By 1973, the Scottish Stock Exchange had merged into the London Stock Exchange.

Hwange Colliery: Hwange Colliery is the name of a company in Zimbabwe and of its associated coal mine.  It was founded in 1899.  Mining operations are located near Hwange in the province of Matabeleland North.  The company's headquarters are in the capital, Harare, some 500 kilometers to the east of the actual colliery.  Its stock is listed on the Zimbabwe Stock Exchange and is a component of its stock index, the Zimbabwe Mining Index.  It is also listed on the London Stock Exchange and Johannesburg Stock Exchange.

Laurentian Bank of Canada: The Laurentian Bank of Canada (LBC) (French: "Banque Laurentienne du Canada" ) is a financial institution founded in 1846 whose activities extend across Canada.  The Bank caters to the needs of retail clients via its branch network based in Quebec.  The Bank also stands out for its know-how among small and medium-sized enterprises and real estate developers owing to its specialized teams across Canada.  Its subsidiary B2B Bank is, for its part, one of the major Canadian leaders in providing banking products and services and investment accounts through independent advisors and brokers.  Laurentian Bank Securities offers integrated brokerage services to a clientele of institutional and retail investors.

Investec: Investec is an international specialist banking and asset management group.  It provides a range of financial products and services to a client base in three principal markets: the United Kingdom, South Africa and Australia.  Investec is dual listed on the London Stock Exchange and the Johannesburg Stock Exchange.  Investec is a FTSE 250 company.

Karachi Stock Exchange: The Karachi Stock Exchange Limited (KSE), was a stock exchange located at the Stock Exchange Building (SEB) on Stock Exchange Road, in the heart of Karachi's Business District, I. I. Chundrigar Road, Karachi, Sindh Province of Pakistan.  It is now incorporated in the Pakistan Stock Exchange along with the other two bourses of Pakistan, the Lahore Stock Exchange and the Islamabad Stock Exchange It is Pakistan's largest and one of the oldest stock exchange in South Asia by market capitalization, with many Pakistani consortium as well as overseas enterprises listings.

Casablanca Stock Exchange: The Casablanca Stock Exchange (Arabic: بورصة الدار البيضاء‎ ‎ ; French: La Bourse de Casablanca ) is a stock exchange in Casablanca, Morocco.  The Casablanca Stock Exchange (CSE), which achieves one of the best performances in the region of the Middle East and North Africa (MENA), is Africa's third largest Bourse after Johannesburg Stock Exchange (South Africa) and Nigerian Stock Exchange in Lagos.  Africa.  It was established in 1929 and currently has 19 members and 81 listed securities with a total market capitalisation of $75,5 billion in 2007.

San Francisco Mining Exchange: The San Francisco Mining Exchange was a regional stock exchange in San Francisco.  Formed in 1862 to facilitate the trading of mining stocks as the San Francisco Stock Exchange, the "Chicago Tribune" described the exchange as "once the West's most flamboyant financial institution."  It sold the name San Francisco Stock Exchange to the San Francisco Stock and Bond Exchange in December 1927 and was renamed the San Francisco Mining Exchange.  The exchange agreed to deal solely in mining securities as part of the same deal, and also sold its building at 350 Bush Street to the San Francisco Curb Exchange.  After years of ups and downs in the mining market, the exchange had "a second life" during the uranium boom of the 1950s.  By August 1967, it was located in second-floor offices on Montgomery Street, at which point it was the smallest securities market in the United States and had suffered "years of lingering legal and money ailments."  The exchange closed at the age of 105 in August 1967.

Supporting paragraphs: Laurentian Bank of Canada Investec
Answer: Investec