US20 is in fact 30 year treasury bond

[TobiasAntiGravity]

I was looking for the product page on CME to check a price spike. Ended up realizing that the IB symbol used for US20 is for the 30 year treasury bond. The CME does not have a product for the 20 year bond. Might be old news, but mentioning it in case it is not

Links;
CME's overview of their treasuries products - As you can see from the text above the Product Suite table, no mention of a 20 year bond future.

the ib_config_futures.csv has the following content;

US20, ZB, ECBOT, USD, 1000, 1, FALSE

IBKR's list of futures available on the ECBOT - does list the ZB symbol, but with the description; "30 Year US Treasury Bond". No mention of a 20 year bond future.

Logged into the trade UI on IBKR and entered ZB - which confirmed that the symbol is for the 30 year bond future.

They might have repurposed they symbol? Feel like I have seen that before, but can't remember the specific instance.

Trivial problem that I suppose is not easy to fix - given that it would have to be amended in a lot of running db's. At the end of the day it is just the PST symbol that is misleading the first time you try to verify a price spike :)

[robcarver17]

Delivery basket for ZB is 15 to 25 years For UB is 25 years plus Hence US20 and US30 respectively Rob

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On Thu, 28 Apr 2022, 20:10 TobiasAntiGravity, ***@***.***> wrote: I was looking for the product page on CME to check a price spike. Ended up realizing that the IB symbol used for US20 is for the 30 year treasury bond. The CME does not have a product for the 20 year bond. Might be old news, but mentioning it in case it is not Links; CME's overview of their treasuries products <https://www.cmegroup.com/trading/interest-rates/us-treasury.html> - As you can see from the text above the Product Suite table, no mention of a 20 year bond future. the ib_config_futures.csv has the following content; US20, ZB, ECBOT, USD, 1000, 1, FALSE IBKR's list of futures available on the ECBOT <https://www.interactivebrokers.com/en/index.php?f=2222&exch=ecbot&showcategories=FUTGRP#productbuffer> - does list the ZB symbol, but with the description; "30 Year US Treasury Bond". No mention of a 20 year bond future. Logged into the trade UI on IBKR and entered ZB - which confirmed that the symbol is for the 30 year bond future. [image: zb] <https://user-images.githubusercontent.com/77267841/165827564-174529cb-7bc2-4532-84d4-3443704a0747.PNG> They might have repurposed they symbol? Feel like I have seen that before, but can't remember the specific instance. Not a big thing - just the PST symbol that is misleading the first time you try to verify a price spike I guess. — Reply to this email directly, view it on GitHub <#605>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ADCLPEU6EOFKVNVP5ZL2FCLVHLPDTANCNFSM5UTPBEPA> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[TobiasAntiGravity]

Thank you for the explanaition Mr. Carver! I see what you mean from the futures spec page

GRADE AND QUALITY;
U.S. Treasury bonds that have remaining term to maturity of at least 15 years and less than 25 years from the first day of the futures delivery month.* The delivery invoice amount equals the futures settlement price times a conversion factor, plus accrued interest. The conversion factor is the price of the delivered bond ($1 par value) to yield 6 percent.