The on-balance volume (OBV) displays the total positive and negative trading volume for a stock or security. To measure OBV, investors evaluate the closing prices between two trading days.

"Granville's New Key to Stock Market Profits." Granville felt that volume was the driving force behind the markets, and designed OBV to project when major moves in the markets would occur.

And retail investors have been able to affect multiple spikes in the stock's price. This can be noticed by looking at on-balance volume (OBV), a technical indicator that expresses crowd sentiment.