This weekend FXCM changed the lot size of CFDs. Although theoretically the change went smooth, we noticed two problems that also affect the Z1, Z2, Z3, and Z12 strategies.

The first problem is that the FXCM API did not adapt its rollover values to the new lot size. Consequently, simulated rollover is now 10 times higher. This has no effect on live trading, but it affects backtests when new asset parameters are downloaded. We'll work with FXCM for solving this issue in the next Zorro update.

The second problem is that the FXCM API must be restarted for taking over the new lot size. For this, just stop and restart your live trading Zorros on Monday. Open trades can be kept open. It is not dangerous to continue without restarting, but Zorro will then trade CFDs with only 1/10th the volume from Monday on.