The highest trading volumes during yesterday's session were recorded by: Iron Mountain Inc, Ventas Inc, ProLogis.

Here's an update with information from the last trading session: Leading equity indices in the US declined as after dropping 0.61%, S&P 500 closed at 4,179.83. Nasdaq slipped 0.63% and closed at 12,935.

Why trading volume matters?

Trading volume is simply the total number of shares traded including both buy and sell orders. If a stock has appreciated on high volume, it is more likely to be a sustained move compared to an appreciation with low volume. Typically, high volume trading sessions are considered significant occurrences and closely watched by traders.

Though trading was down yesterday, some real_estate stocks reached high volumes. Here is an update.

Iron Mountain | 451% above rolling average

Iron Mountain Inc had a compelling day yesterday, with 6.47 million shares traded helping the company surpass its average daily volume by 451%.

8 months ago, the enterprise enabler fell to a low of $43.59 but has since recovered 22.51%. The stock has been trending positively for about 2 months. Iron Mountain is on an 8 day downtrend

Iron Mountain discloses 61.9 cents per share dividend to be paid on Wednesday, April 5th

Ventas | 387% higher than rolling average

Ventas has been losing ground for 23 days, shedding a total of 10.22% of its value. A slight improvement can be seen from yesterday's session: Ventas was steady yesterday maintaining a $42.8 – $43.58 range before closing at $43.14.

Trading volume peaked at 9.20 million shares yesterday, thereby obliterating the daily average of 2.38 million by 387%.

ProLogis | 344% above rolling average

On a 5 day uptrend, Yesterday's session put the brakes on the ongoing uptrend — without a clear direction, ProLogis closed at $124.55 while ranging between $123.43 and $126.18.

ProLogis outpaced its average daily trading volume (3 million) with 10.60 million shares traded yesterday.

— Average trading volume refers to a 21-day rolling average.