[jasode]

The author just inadvertently left out the word "on" as in "we are long on software", or "long on gold", "long on the euro", etc. It's typical phrasing that describes a long-term bet on something going up in value.

[harryc2011]

FWIW, the duration has nothing to do with it - you could be 'long APPL' etc. for only a few minutes (or even seconds, microseconds etc.) - see [0] An alternative phrasing here might be "We are bearish on software" [1] [0]https://en.wikipedia.org/wiki/Long_(finance) [1]https://en.wikipedia.org/wiki/Market_sentiment