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Withdraw or add cash
Rafael Del Rey
posted Jun 12, 2015

Hi,

I am trying to simulate some retirement strategies and I would like to do the following:

  • Add a certain amount of cash to the portfolio (which would be used to buy stocks), simulating a pre-retirement situation;
  • Withdraw a certain amount of cash from the portfolio, simulating a post-retirement situation;

I though in adding, at each handle_data, the context.portfolio.cash to a very low interest investment, in order to simulate the withdrawal. This way, I could "record" its value and track the money the algo is producing as dividends and capital gains, which would be the equivalent to retirement income;

I tried manipulating portfolio.cash with no results. Any help would be appreciated.

Thank you

3 responses
Alisa Deychman
Jun 12, 2015

The backtest runs entirely on the initial capital setting, which can't be tweaked in the middle of the run. So this isn't currently possible in the IDE.

This workaround might help you simulate removing cash: https://www.quantopian.com/posts/removing-cash-from-portfolio-to-pay-taxes

Disclaimer

The material on this website is provided for informational purposes only and does not constitute an offer to sell, a solicitation to buy, or a recommendation or endorsement for any security or strategy, nor does it constitute an offer to provide investment advisory services by Quantopian. In addition, the material offers no opinion with respect to the suitability of any security or specific investment. No information contained herein should be regarded as a suggestion to engage in or refrain from any investment-related course of action as none of Quantopian nor any of its affiliates is undertaking to provide investment advice, act as an adviser to any plan or entity subject to the Employee Retirement Income Security Act of 1974, as amended, individual retirement account or individual retirement annuity, or give advice in a fiduciary capacity with respect to the materials presented herein. If you are an individual retirement or other investor, contact your financial advisor or other fiduciary unrelated to Quantopian about whether any given investment idea, strategy, product or service described herein may be appropriate for your circumstances. All investments involve risk, including loss of principal. Quantopian makes no guarantees as to the accuracy or completeness of the views expressed in the website. The views are subject to change, and may have become unreliable for various reasons, including changes in market conditions or economic circumstances.

Taylor Redden
Feb 17, 2017

Alisa, do you know if there are any plans for Quantopian to do this in the future?

It would be interesting to simulate Roth IRA contributions (with their $5500) limit per year.

John Szatmary
Jun 8, 2020

+1 to the idea of adding this feature.

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The material on this website is provided for informational purposes only and does not constitute an offer to sell, a solicitation to buy, or a recommendation or endorsement for any security or strategy, nor does it constitute an offer to provide investment advisory services by Quantopian.

In addition, the material offers no opinion with respect to the suitability of any security or specific investment. No information contained herein should be regarded as a suggestion to engage in or refrain from any investment-related course of action as none of Quantopian nor any of its affiliates is undertaking to provide investment advice, act as an adviser to any plan or entity subject to the Employee Retirement Income Security Act of 1974, as amended, individual retirement account or individual retirement annuity, or give advice in a fiduciary capacity with respect to the materials presented herein. If you are an individual retirement or other investor, contact your financial advisor or other fiduciary unrelated to Quantopian about whether any given investment idea, strategy, product or service described herein may be appropriate for your circumstances. All investments involve risk, including loss of principal. Quantopian makes no guarantees as to the accuracy or completeness of the views expressed in the website. The views are subject to change, and may have become unreliable for various reasons, including changes in market conditions or economic circumstances.