don't put all your eggs in one basket

don't put all your eggs in one basket

Don't focus all of your attention on one thing or in one area, in case that situation changes or goes awry. I know you love Harvard, but don't put all your eggs in one basket—make sure to apply to several other schools too. Don't put all your eggs in one basket with your investments. Make sure you diversify your portfolio.
See also: all, basket, egg, one, put
Farlex Dictionary of Idioms.

don't put all your eggs in one basket

don't risk everything on the success of one venture. proverb
1996 Mail on Sunday Having too many eggs in one basket—the British stock market—can be a bad idea. Overseas investments can add balance to an investment portfolio.
See also: all, basket, egg, one, put
Farlex Partner Idioms Dictionary
See also:
  • (someone's) secret is safe with (one)
  • don't beat a dead horse
  • come it
  • come it (with one)
  • all in (one's) head
  • don't get me wrong
  • don't bet on it
  • don't give up the ship
  • don't cry before you are hurt
References in periodicals archive
The moral is simple and obvious: don't put all your eggs in one basket. Everyone knows that.
Investment--putting a portfolio together
Buy when prices are low and sell when they are high; don't put all your eggs in one basket and don't expect returns for at least five years.
Time and Money: Money SAVERS
"Don't put all your eggs in one basket and focus on a single stock," he says, citing the examples of Enron and WorldCom.
Financial discovery for all: Melvin Carrington Smith Sr. is opening eyes to financial empowerment. (Black Wealth Initiative)
The adage "Don't put all your eggs in one basket" cautions against making all family investments in the same asset type or in the same geographical area.
WEALTH MANAGEMENT STRATEGIES 2001