Historical Halted and Unhalted ticks

The tick attribute pastLimit is also returned with streaming Tick-By-Tick responses. Check Halted and Unhalted ticks section.

• If tick has zero price, zero size and pastLimit flag is set – this is “Halted” tick.
• If tick has zero price, zero size and followed immediately after “Halted” tick – this is “Unhalted” tick.