Fast enough to think with.
A fitted smile reaches your machine in about a fifth of a second. A whole day's option chain arrives in about a second.
Measured from a computer over an ordinary internet connection, not from inside our data centre.
Replayed at real speed: the clock stops at the typical time we measured for this call.
Typical latencies.
One call at a time from a computer on a home connection, through the public site, the way a subscriber calls us. Every call asked for a different symbol and day, so nothing came from a cache. Each bar is the typical time.
Why it's fast.
The data sits next to the API
Our server finds and packs a typical answer in a few hundredths of a second. Most of what you wait for is the trip across the internet.
A fast engine
Fitting every option on every symbol for a whole trading day takes our engine about 5 hours of a single processor core.
Fair for everyone
A fair-use limit on each account keeps one heavy user from slowing everyone else down.
Big answers, in seconds.
Tens of thousands of rows, or a whole earnings study, in one call.