I converted a traditional IRA to a Roth in 1998. Paying the tax thereon over 4 years. Will pay my last tax on the conversion in 2001. I am 65 years of age. One of the securities in that Roth account has gone from a 1998 price of $100 a share to a current price under $1. I paid my tax calculated on $100. Can I, after 2002, withdraw that security from my Roth account; deposit it in a non-IRA brokerage account; sell that security for $1, and claim a capital loss of $99?

No.