[moomin]

An obvious question: how often did they place this bet before it came off? If they did it ten months in a row it would still be impressive. But the return wouldn’t be quite as good.

[erikig]

This is true, looking at the chart for XIV if the placed this bet every month for the last couple of years they may actually be down.

https://finviz.com/quote.ashx?t=XIV&ty=c&ta=0&p=m

[spelunker]

Article says a year.