Does your broker's yield-linked price track the 10-year Treasury yield in real time? Show us how you check

Some brokers offer instruments whose prices relate to US bond yields, while others show the yield only as a reference. The Treasury publishes its official daily par yields, so you have a free benchmark to compare against. On 16 October the 10-year par yield was 5.09%, down from 5.31% on 5 October (yields report).

A broker's instrument may not track the official yield exactly, because it can reflect futures contracts, time of day or data sources. A gap of a few basis points is normal, but a consistent gap is worth noticing.

We would like to hear what members have actually done:

• Have you compared a broker's yield-linked instrument with the official Treasury figure? How did you do it?
• What differences did you find, and at what times of day?
• Did you log the times and prices, and what would you look at before deciding a difference was a problem?
• Which official reference do you use to check a broker's quotes?

A useful check is to log the Treasury's end-of-day yield next to the broker's quote for several days, noting the time of each. Did you find differences that were larger at the open or the close, and did they reverse later in the day?

Please describe what you observed rather than posting verdicts on a broker, and leave out account numbers and other personal details. Posts that promise returns or sell signals will be removed.