+First time on the top traders desk?
The desk runs its own numbers and publishes its calls next to the account that trades them. The short route:
TRADFI MARKET
H100
H100
The board lists this market but nobody trades it: no 24h volume and no open interest. Its mark is the previous close, which is a reference number rather than a price, so none is shown.
Why there is no security
There is no public security behind H100: the venue's own index, not a security.