A Treasury yield is the return on lending to the government for a set time. The yield on a two-year note reflects where the market expects short-term rates to average over the next two years. Since the central bank sets short-term rates, the two-year is a running estimate of policy.
Why this maturity
Very short bills mostly reflect the rate as it stands today. Long bonds reflect policy and a good deal more: long-run growth, long-run inflation, and the extra return investors want for holding a long bond. The two-year sits between. It reaches far enough ahead to capture the next several decisions and not so far that other forces take over.
That is why it reacts most cleanly to anything that changes the outlook for rates. The 10-year yield moves for more reasons, which makes it harder to read on a data day.
Reading it against the policy rate
When the two-year trades well below the current policy rate, the market expects cuts. When it trades above, the market expects hikes. The size of the gap is a rough measure of how much change is expected.
The level matters less than the change. A two-year that drops sharply on a release tells you the market just moved toward easier policy. A sharp rise says the opposite.
What it tells you on a release
On a data day, the two-year shows whether the release changed the rate outlook. That helps explain the stock reaction. If stocks fall on a strong number and the two-year jumps, the market is trading rates. If stocks rise on a strong number and the two-year is steady, the market is trading growth. Good data, bad reaction sets out both cases.
A release that leaves the two-year flat has not changed the policy outlook, whatever the headline said.
The gap to the ten-year
The difference between the two-year and the ten-year is the most quoted measure of the curve’s shape. When the two-year is higher, the curve is inverted, covered in yield curve inversion. How that gap changes, and which end is doing the moving, is the subject of bull and bear steepeners.
Limits
The two-year is a market price and can be wrong. It has often expected more cuts or more hikes than were delivered. It also moves on demand for safe assets during a scare, which is separate from any view on policy. Read it as what the market expects now and nothing firmer than that.
Where NoVo fits
NoVo’s dashboards cover the equity side. The Trader dashboard shows dealer positioning and the expected move on SPY, QQQ and IWM, and Dr. NoVo’s written reads describe how the index sits against those levels after a rates-driven move.