The $74.2 billion decline, the largest weekly drop since 2009, was driven by a $92 billion drop in foreign exchange swaps with other central banks to $352.5 billion on Wednesday from $444.5 billion a week earlier. The total amount outstanding in the swap lines, designed to ease a surge in demand for US currency in the participating banks' jurisdictions during the early weeks of the crisis, was the lowest since early April.
TD senior US rates strategist Gennadiy Goldberg said in a research note that the swap decrease may have been driven by banks making room for cheap loans known as TLTROs, or because they are able to fund elsewhere. The European Central Bank on Thursday announced record take-up of its new round of TLTROs, which stands for targeted longer-term refinancing operations.
Together with softening demand for a number of other emergency credit programs, that offset an increase in purchases of Treasuries and mortgage-backed securities.
The Fed's stash of Treasuries rose by nearly $19 billion to a record $4.17 trillion, while it added $83.1 billion in MBS, the most in five weeks, for a total of $1.92 trillion.
The data showed the Fed has not embarked on a massive corporate bond purchasing spree since tweaking its Secondary Market Corporate Credit Facility to set up direct bond purchases in addition to shares of bond exchange traded funds. The facilities' assets rose by $1.5 billion to $38.9 billion from a week earlier.
More than 80% of the assets in the SMCCF are the Treasury Department's seed money. It has acquired just over $7 billion of corporate bonds or bond ETF shares since it launched several weeks ago.