The highest trading volumes during yesterday's session were recorded by: Digital Realty Trust Inc, Equinix, Apartment Income REIT Corp..

A recap of yesterday's session: Leading equity indices in the US rose as Nasdaq gained 2.19% and closed at 12,976. S&P 500 closed the day at 4,205.45, having gained 1.3%.

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.

Price action was mostly bullish yesterday with some real_estate stocks recording abnormally high trading volumes. Here's a recap:

Digital Realty Trust | 266% above rolling average

The carrier-neutral data center REIT traded at $98.89 yesterday, after making its biggest single-day jump of $6.67 (7.23%) since Apr 17. Digital Realty Trust has posted further gains as part of a 3 day trend that has already seen the stock gain $5.73. On-trend Digital Realty Trust closed the session yesterday with more of the same: after ending Thursday's session at $92.22, Digital Realty Trust went up to $100.15 yesterday only to fall back and close at $98.89.

Trading volume was 6 million shares yesterday — beating the daily average by a mammoth 266%.

Equinix | 169% higher than rolling average

The internet connection and data center specialist is up 39.94% from the significant low of $505.39 it hit 7 months ago. The stock has been trending positively for about 2 months. The company is currently trading with a market cap of $68.19 billion with an average daily volume of 404,733 shares.

With 682,448 shares traded yesterday, Equinix beat its daily average by 169% to cap off a frenetic trading day.

AIR | 161% higher than rolling average

Apartment Income REIT had a compelling day yesterday, with 1.20 million shares traded helping the company surpass its average daily volume by 161%.

Over the past 9 months, the real estate investment trust has retreated 25.15% from a noteworthy peak of $46.13. During a 20 day fall, dropping a total of 6.7%, ($2.63),

AIR's board sets quarterly dividend of 45 cents per share to be paid on Tuesday, May 30th; annual dividend yield esimated at 5.19%.

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