What are Long Buildup, Long Unwind, Short Buildup, and Short Covering?

What are Long Buildup, Long Unwind, Short Buildup, and Short Covering?

Long Buildup: Price Up AND OI Up - Market participants are betting the stock will go up.

Long Unwind: Price Down AND OI Down - Market participants are getting out of their long bets.

Short Buildup: Price Down AND OI Up - Market participants are betting the stock will go down.

Short Covering: Price Up AND OI Down - Market participants are getting out of their short positions.