Stock Up, Stock Down for Chicago Cubs’ Top 10 Prospects for Week 13

After taking a week off from the prospect stock watch, we're back this week, complete with updated rankings following the first half of the season and the MLB draft.

Up until this point, the rankings were based on the Baseball America Prospect Handbook's preseason rankings. But with the Chicago Cubs' top draft pick, Kyle Schwarber, signed and already tearing up minor league pitching, now seemed like a good time to update.

Schwarber is not the only newcomer to the top 10, though, as Taiwanese right-hander Jen-Ho Tseng also climbs the rankings with a terrific start to his pro career.

Heading in the other direction, right-hander Pierce Johnson falls...

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