'substantial stocks' is a correct and usable phrase in written English.
It is used to describe a large amount of something; either a physical item or a metaphorical idea. For example, you could say "The company had substantial stocks of raw materials to ensure production would not be delayed".
Thus, parents and guardians play an essential role in creating advantages for their children by encouraging them to acquire substantial stocks of human capital.
Unlike the situation Edward Heath faced in 1973, the government had built up substantial stocks of coal at power stations in advance of the industrial action.
But they also suggested that it will take some time -- likely until next year -- before consumers will see substantial stocks of sofas with the new TB 117-2013 label in stores.
In the last decade substantial stocks have developed along the south coast (an area not traditionally considered commercially viable for rock lobster fishing).
Anders Lönneborg and Praveen Sharma are co-founders of DiaGenic ASA and have substantial stocks in the company.
It is ranged fairly randomly throughout local environments -- collected in substantial stocks at former camps, scattered over large areas in the aftermath of attacks on depots, and deposited or dumped in the backward and forward motions of battlefield campaigns.
The company was listed among those with substantial stock purchases by insiders.
They do not own substantial stock in their companies and face no risk if things go wrong.
He sold his 30 percent share of Forest City Ratner Company for $46.3 million and substantial stock in 2006.
He has what appears to be a substantial stock portfolio, including 53 stock holdings worth at least $1,000 apiece, according to the filing.
But looking at the short term -- the year so far -- every plan with a substantial stock component has lost money, according to Morningstar Inc.
