Warrants

[#1]

I notice that standard bank Warrants are slow to update when they are in my favour and quick to update when in standard banks favour. Eg right now the market is in a down swing and the put warrants on FSR BIL MTN ACl SOL AGL AMS have not been updated at all. Yet the moment it crosses into the upswing it updates instantly, infact the Bid sits a point above the Offer for a while, and its the same for Call warrants. Has anybody noticed this or is it just a technical delay