sending genericTick"106" to reqMktData to get IMPLIEDVOLATILITY but nothing comes back

[ghost]

trying to get IMPLIEDVOLATILITY for a symbol the ib docs https://interactivebrokers.github.io/tws-api/tick_types.html tell me it's

generictick = "106" and so I enter it in this call

Jib.reqMktData(ib, idx, contract, "106", false)
'''

I then look in the callback for tickGeneric but I don't see anything.

  What did I do wrong please?

[lbilli]

Hard to say. Make sure the stock does indeed have options.
Here's a typical run:

julia> stock = Jib.Contract(symbol="AAPL", secType="STK", exchange="SMART", currency="USD")

julia> Jib.reqMktData(ib, 57, stock, "mdoff,104,106", false)

tickReqParams: 57 0.01 9c0001 3
tickGeneric: 57 OPTION_HISTORICAL_VOL 0.36271455051061996
tickGeneric: 57 OPTION_IMPLIED_VOL 0.35363669304385537
marketDataType: 57 REALTIME
tickGeneric: 57 OPTION_IMPLIED_VOL 0.35536941587354764
tickGeneric: 57 OPTION_HISTORICAL_VOL 0.3625721958397805

[ghost]

thanks now I'm getting IV and HV which is great but now I'm not getting LAST, VOLUME. What does "mdoff" do please? I can't seem to find anything about it in the IB docs.
All the symbols I am looking at have options.

[lbilli]

mdoff just suppresses the market data ticks BID, ASK, LAST, etc. that are on by default.
If you want those plus HV and IV just use "104,106".

[ghost]

Perfect thanks so much.