Thanks @kzhao.

If I understand you correctly, it's from whatever is the lastQuote existing at the time the brokerCommand(CREATE_ASSETLIST, ...) is run. So, in addition to illiquid assets, it could also be due to "outliers" at the end of trading session if the AssetsAlpaca.csv is created, say, on the weekend?

Is there an easy way to get a more realistic Spread?

Or am I stuck with just plugging a % of Price; or 0?

Thanks.