Portfolio weighting refers to the way you allocate or distribute your investments within your investment portfolio. It determines the percentage or proportion of each investment in your total portfolio. Full definition
I read alot of 20 - 25 positions is a good number with 4 - 5 % of portfolio weighted to each position. (dividendmantra.com)
For the sort of medium term horizon you mention, a balanced portfolio weighted more towards high grade corporate bonds but with at least 20 % stocks would be a safe bet. (money.stackexchange.com)
While several firms use statistical techniques like mean - variance optimization to determine portfolio weights, we do not. (ibkram.com)