When you are ready to invest, commit to regularly contributing to a stock mutual fund as part of your overall investment plan. (barbarafriedbergpersonalfinance.com)
To avoid falling prey to the endowment effect, Swedroe suggests asking yourself: «If I didn't already own the asset, how much would I buy today as part of my overall investment plan?» (moneysense.ca)
That said, you should only take action if that fits in with your overall investment plan and your goals. (thecollegeinvestor.com)