Dear Liz: I have some questions regarding my brokerage accounts. What happens to my investments there if the brokerage company goes out of business? How much of my investments will I be able to recover and how? Also, does it matter if my accounts are IRAs, Roth IRAs, or conventional brokerage accounts?

Answer: Most brokerages are covered by the Securities Investment Protection Corp., which protects up to $500,000 per eligible account, which includes a $250,000 limit for cash.

Different types of accounts held by the same person can get the full amount of coverage. IRAs, Roth IRAs, individual brokerage accounts, joint brokerage accounts and custodial accounts could each have $500,000 of coverage.

So with an IRA, a Roth and a regular brokerage account, you would have up to $1.5 million in coverage.

If you have a few traditional IRAs at the brokerage, though — say, one to which you contributed and one that’s a rollover from a 401(k) — those two would be combined for insurance purposes and covered as one, with a $500,000 limit.

In addition to SIPC coverage, many brokerages buy additional insurance through insurers such as Lloyds of London to cover larger accounts.

It’s important to understand that SIPC doesn’t cover losses from market downturns. The coverage kicks in when a brokerage goes out of business and client funds are missing.

SIPC is commonly compared to the Federal Deposit Insurance Corp., which protects bank accounts, but there’s an important difference between the two.

The FDIC is backed by the full faith and credit of the U.S. government. SIPC has no such implicit promise that if it’s overwhelmed by claims, the government will come to the rescue.