WASHINGTON — Nearly a month after Bernard L. Madoff's $50 billion Ponzi scheme was exposed, the Securities and Exchange Commission has discovered two more that allegedly bilked investors out of nearly $75 million.

The SEC yesterday charged Joseph S. Forte of Broomall, Pa., with fraudulently obtaining an estimated $50 million from as many as 80 investors through the sale of securities in the form of limited partnership interests in his firm, Joseph Forte, L.P. Forte told investors that he would invest the funds in an account that would trade in securities futures contracts, including S&P 500 stock index futures. He consistently lost money in the limited trading that he did, withdrew millions of dollars in "so-called" fees for his personal use based on the falsely inflated value of Forte LP, and used investor funds to repay other investors, the SEC said.

On Dec. 30, the commission filed an emergency action to halt a $23 million Ponzi scheme and affinity fraud conducted by Creative Capital Consortium LLC, A Creative Capital Concept$ LLC and its principal, George L. Theodule. The scheme, targeted mostly at Haitian-Americans, directed investors to form investment clubs for business ventures in the U.S., Haiti and Sierra Leone. Their funds were actually funneled to Theodule and Creative Capital, according to the complaint. Theodule commingled investor funds with his personal funds and misappropriated at least $3.8 million for himself and his family, the SEC said.