The meme stock is on the move once again.Shares of Opendoor Technologies (OPEN 14.24%) are soaring on Wednesday, up 6.5% as of 2:58 p.m. ET. The jump comes as the S&P 500 (^GSPC -0.02%) lost 0.6% and the Nasdaq Composite (^IXIC -0.30%) lost 0.9%.A regulatory filing from the company, as well as the Federal Reserve's rate cut confirmation, is sending Opendoor stock flying.Opendoor is expanding its reachThe company filed an 8-K disclosure with the SEC, revealing that it "intends to expand its product offerings ...