9 ms·

I think it's a nice site, but I don't know why someone would pay for the feature. - Your motivating example is someone who wants to buy or sell a stock at a ce

by tansey 16y ago

I think it's a nice site, but I don't know why someone would pay for the feature. - Your motivating example is someone who wants to buy or sell a stock at a certain price threshold. Why wouldn't you just set a limit order or a stop-limit order? Both are available from virtually ever broker. - I don't see which exchanges you support. Is it just the NYSE and NASDAQ? Do you support European exchanges? What would probably be helpful is if you created a way for me to specify some complex criteria about the time, price movement qualities, technical indicators, etc. For example, I could imagine being long MSFT at $25 and wanting an update if the price drops by more than $0.25 in less than 5 minutes and the DMI is less than 30. I believe some brokers actually offer this kind of algo trading already, though I'm not sure whether they also allow for only sending updates. As a side note, if you offered an API of some sort and allowed me to specify a time (e.g., I want the closing price of the 9:30 bar) and you covered all major global markets/indices (I'm interested in HSI, DAX, FTSE, CAC, TOPIX, ASX), then I would probably be willing to pay $10 a month for that service if you had live prices. However, I imagine you would run into serious data licensing issues (if you're not already?).

ezl 16y ago
Tansey, Thanks for the feedback. I will clarify that these are US equities. The target market for now is somewhere around casual investors who invest themselves in the market generally, but less than professional customers that require exchange specificity. I think the notion of complex filters is a good idea, but I am unlikely to get to it -- Including complex algo trading (or notifications based on those signals) becomes a monster project very quickly and suddenly trying to compete in the space of real Goliaths. You hit the nail on the head though about "only sending updates". That's sort of exactly the service I needed a few months ago and couldn't find one I liked. Of course executions can be done with just stops and limits, but there have been times I've been filled after a news event and wished I had been there to insert the human decision making process between signal and trade.

by tansey 16y ago

ezl 16y ago

Tansey, Thanks for the feedback. I will clarify that these are US equities. The target market for now is somewhere around casual investors who invest themselves in the market generally, but less than professional customers that require exchange specificity. I think the notion of complex filters is a good idea, but I am unlikely to get to it -- Including complex algo trading (or notifications based on those signals) becomes a monster project very quickly and suddenly trying to compete in the space of real Goliaths. You hit the nail on the head though about "only sending updates". That's sort of exactly the service I needed a few months ago and couldn't find one I liked. Of course executions can be done with just stops and limits, but there have been times I've been filled after a news event and wished I had been there to insert the human decision making process between signal and trade.