Picard, who is overseeing the liquidation of Bernard L. Madoff Investment Securities LLC, called the meeting to give the investors a progress report on his efforts to unravel the alleged fraud.
Madoff was arrested in December after investigators said he confessed to his sons that he had swindled investors of $50 billion in a Ponzi scheme. The 70-year-old former Nasdaq chairman remains confined to his Manhattan apartment under house arrest.
The trustee so far has recovered an estimated $950 million in assets - including works of art at Madoff's midtown office
- that would be used to help cover claims likely to reach into the billions. He also hopes to raise money by selling a legitimate trading arm of the business, which still has 40 employees.
A lawyer working for Picard also warned that the trustee would seek to recover
- or "claw back" - phony profits earned by some investors so they can be redistributed to others.
"There wasn't any stock bought or sold," said the attorney, David Sheehan. "It was all just made up. ... You got somebody else's money."
Picard said that about 2,400 people have filed claims - a total expected to rise sharply before the July 2 deadline.
The presentation did little to calm investors' nerves.
"There's a lot of frustration and fear because it doesn't feel like anyone is doing enough to help the individual investor," Bennett Goldworth said afterward.
The 52-year-old Goldworth said he had lost "several million," forcing him to put his Florida home up for sale and move in with his father in Manhattan.
One investor complained about both Madoff and the federal Securities and Exchange Commission, which has been harshly criticized for failing to detect the Ponzi scheme despite red flags raised to agency staff by outsiders over the course of a decade.
Raymond Spungin, 77, of Staten Island told Picard he had checked with the SEC before investing with Madoff in the early 1990s.
"They said Madoff was the greatest," he said. "We're the victims not only of Madoff but of the incompetence of the SEC." He and his wife believed they had $1.8 million in two accounts.
SEC spokesman John Heine said Friday that while the agency offers information on whether investment firms have been penalized, it doesn't give investment advice.
Picard has sought and won permission from a bankruptcy court judge for $28.1 million to cover expenses tied to the liquidation of Madoff's investment firm. Along with proceeds from the sale of assets, victims could qualify for up to $500,000 in funds from the Securities Investor Protection Corp., or SIPC.