Open Interest,Price and Volume

Rules of Open Interest

1.If prices are rising and the volume and open interest are both up, the market is decidedly strong.
2.If the prices are rising and the volume and open interest are both down, the market is weakening.
3.If prices are declining and the volume and open interest are up, the market is weak. but,
4.When prices are declining and the volume and open interest are down, the market is gaining strength.