Wall Street romped to records as a delayed jubilation swept markets worldwide following the Federal Reserve’s big cut to interest rates.

Just as Wall Street traders come to grips with the Federal Reserve’s interest-rate cut, Friday’s US options expiration threatens to whipsaw the market some more.

Wall Street ripped gains on Thursday, with market participants taking confidence from the Federal Reserve's bumper half-point rate cut the previous day and jumping back into growth stocks. With a night to digest the Fed's decision,