ARJUNA

The decision engine for long-term investors

Before you invest another dollar — see what your future might actually look like.

It's time we applied the same analytical rigor to your portfolio as many of these $1,000 gadgets do for your sleep.

ARJUNA reveals where you stand, why you're there, and what to consider next.

Should I invest everything today?What happens during another 2008?Am I taking enough risk?How much safer could this become?How much income will this generate?

Built by an ex-Goldman ivy leaguer from Queens, NY who grew up lower middle class, earned a high-brow education and learned many expensive lessons on the pilgrimage from broke to liquid millionaire… Read more

1

Enter your holdings

Enter it however you think about it — weights, dollars, or the share counts from your brokerage. The other two columns keep up.

$
Popular ETFs
Single names
Add tickers or import your portfolio from broker to begin.
Weights: 0.0%
Add a ticker to begin
2

Set assumptions & run

Three plain choices. Everything quant lives under Advanced — the defaults are the ones institutional shops use.

%/yr

The cautious yardstick is a plain steady rate to compare against — it isn't used in the simulation. Years ahead is capped at 40 (the simulation resamples ~20 years of real daily returns, so projecting much further is extrapolation).

Where does ARJUNA come from?

Built by an ex-Goldman ivy leaguer from Queens, NY who grew up lower middle class, earned a high-brow education and learned many expensive lessons on the pilgrimage from broke to liquid millionaire via investing, compounding and several educated bets along the way.

He built the tool he wished existed for the friends who kept texting him screenshots of their brokerage accounts.

Doctors. Engineers. Operators. Founders. High earners with real savings, real anxiety, and no time or inclination to become part-time portfolio managers or hire an advisor and inadvertently help Jamie Dimon fund another $3 billion headquarters.

You built this bag, brick by brick, on some Franklin Saint type thing - bonuses, inheritances, the credit-card points game, Kirkland over name-brand, even that one time you experimented with options.

You did the hard part. Don't fumble it at the finish line.

The fine print. ARJUNA is an analytical toy, not your fiduciary. Nothing here is investment, legal, or tax advice, a recommendation, or a solicitation to buy or sell any security — it is for informational and big-brain purposes only. Think of it as a McKinsey in your pocket, if McKinsey were actually helpful and didn't bill you $2 million to restate your own slides. Markets do what they want; past performance tells you nothing with certainty; you and your actual advisors own every decision. By using ARJUNA you agree it and its makers are held harmless for anything you do with these numbers.