LONDON (ShareCast) - (ShareCast News) - Glencore (Xetra: A1JAGV - news ) shares tumbled on Monday on the back of a fairly downbeat assessment from Investec (LSE: INVP.L - news ) , which warned the stock holds little value for shareholders.
Utilize the input text as a context reference, choose the right relationship between 'Investec' and 'LONDON' from the options.
Options: parent organization, product/material produced, position held, headquarters location