SOFR traded tightly between 3.62% and 3.71% throughout March 2026, closely tracking the effective federal funds rate near 3.64% within the FOMC's unchanged 3.50%-3.75% target range after the March 18 policy hold amid balanced inflation and labor market risks. Repo market liquidity remained ample, with no Treasury issuance strains or quarter-end pressures causing spikes, anchoring trader consensus on mid-3.6% levels as reflected in Polymarket's skin-in-the-game probabilities. Resolution hinged on New York Fed daily publications to two decimals; future paths now pivot to April CPI data, nonfarm payrolls, and the April 29-30 FOMC meeting for rate cut signals influencing short-term funding dynamics.