The New York Federal Reserve showed on its website that it planned to enlarge the size of its repurchasing operations for Thursday, as part of its move to temporarily inject cash into short-term funding markets. The central bank increased its overnight repos to $100 billion from $75 billion, and its 14-day repos to $60 billion from $30 billion. It's not clear if the increase to the offering sizes will apply to repo operations beyond Thursday. Recent repos by the Fed have been oversubscribed, suggesting pressure on funding markets has yet to subside. Repo traders say demand for cash is expected to spike heading into Sept. 30, the end of the quarter. The New York Fed's interventions come after the overnight repurchasing rate briefly climbed to three times their usual levels of around 2% last week. The repurchasing rate is how much banks and hedge funds pay to borrow for a short period of time in return for collateral like Treasurys.