Suppose that PIMCO buys $100m worth of 1-year par-valued Treasuries with a 2.5% coupon rate. Then, the fund immediately enters into an overnight repurchase agreement (repo) with a money-market fund at a 2.0% repo rate with a 1.0% haircut.

What is the $duration of PIMCOs overnight repo position? (units: millions of dollars; do not include the "$" sign)