Offer your thoughts or opinion on the input financial query or topic using your financial background.

Where to park money low-risk on interactivebrokers account?
The standard low-risk/gain very-short-term parking spot these days tends to be a money market account.  However, you have only mentioned stock. For good balance, your portfolio should consider the bond market too. Consider adding a bond index fund to diversify the basic mix, taking up much of that 40%. This will also help stabilize your risk since bonds tend to move opposite stocks (prperhaps just because everyone else is also using them as the main alternative, though there are theoretical arguments why this should be so.) Eventually you may want to add a small amount of REIT fund to be mix, but that's back on the higher risk side. (By the way: Trying to guess when the next correction will occur is usually not a winning strategy; guesses tend to go wrong as often as they go right, even for pros. Rather than attempting to "time the market", pick a strategic mix of investments and rebalance periodically to maintain those ratios. There has been debate here about "dollar-cost averaging" -- see other answers -- but that idea may argue for investing and rebalancing in more small chunks rather than a few large ones. I generally actively rebalance once a year or so, and between those times let maintainng the balance suggest which fund(s) new money should go into -- minimal effort and it has worked quite well enough.,)