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Only 120 days of historical tick data?

To start, 1 in every 12 people on this planet has an account on facebook.

Anyone know a free (or cheap) service that has historical data which is fairly clean that has tick by tick precision on equities? OpenTick used to exist but they went out of business i think.

The rules about odd-lot trading are surprising, it makes precise hedging much harder. If they don't want people to trade sub 100 lots, they should do a 100:1 reverse stock split and let people trade single units of a bigger stock.

Birthrate is inversely correlated to education, specifically education in women. This would be a sign of growing universal education in the US, which isn't surprising.

It is my understanding of the markets that there is no way for an order (or order owner) to 'know you are trying to hit it' and cause itself to vanish, without front running which is highly illegal, the more likely explanation of why orders vanish before you try to hit them is because they have...

I can place an order with a lifespan of 50ms (too short for most dial up traders to see it, react to it, get a market order to the exchange to fill against it) doesn't mean I'm placing that order without any intention of being filled, it only means that I want 50ms exposer to being filled at a...

There is no such thing as 'fake bids and offers', only bids and offers which have very short life spans, if someone places an order on the books, HFT or otherwise, they are opening themselves up to be filled against. Call a spade a spade, people don't like short lifespan orders, but there is...

Jobs didn't, a handful of engineers who you've never heard of did.

Wait, so Neke turned $6300 into $943k over 6 years including cash withdrawals?

I'd also warn of bad ticks in historical data and live feeds. They confound backtesting and are more common than you think.

Do you get any error messages or have you phoned sterling tech support to see if they have any record of your attempted orders?

Does eSignal have an API access to significant historical data to allow for third party system development?

I agree that Facebook doesn't capitalize on Zynga's revenue stream very much yet. But Zynga couldn't have reached a 80+ million player base without Facebook. Which reflects on the value of Facebook, even if they arn't capitalizing on that aspect... yet. If Facebook gets it together and creates...

For anyone who thinks $50B is ridiculously high, take a look at a single company which makes its revenue from Facebook huge community structure, http://en.wikipedia.org/wiki/Zynga, +$600M in 2010, or 1.2% of the Facebook evaluation..

Identifying systematic trading stops is all well and good, but exploiting those stops will just end with the system being pulled (and I doubt any big money is stupid enough to trade with that type of vulnerability). Other systems either cut such thin margins that attempting to 'front run'...

http://i.imgur.com/JvcBb.png I keep this link saved in my email for this reason.

Blockbuster missed out by not starting development on a digital distribution app 5 years ago.

Why ten years+? The way the market behaved 10 years ago is not very reflective of this environment or environments in the future. The main cause of this is the explosion in automated systems which has fundamentally changed price action and are not likely to go away.

I'm interested in breaking up my trading strategies into long and short baskets to help increase and balance diversification. I was wondering if anyone had any good suggestions on the best way to quantify the strength of a stock vs other stocks or vs the market. I was thinking tracking daily...