John Mack was meeting with his brain trust, already anticipating what had become a grim end-of-day ritual. At 2:45 p.m., hedge funds would start pulling money out of their prime brokerage accounts, asking for all the credit and margin balances. At 3:00, the Fed window would close, leaving the firm without access to additional capital until the following morning. Then, at 3:02, the spread on Morgan Stanley’s credit default swaps—the cost of buying insurance against the firm’s defaulting—would soar. Finally, its clearing bank, JP Morgan, would call and ask for more collateral to protect it.