NEW YORK (TheStreet) -- The provider of wireless communications solutions, BlackBerry (BBRY) broke below its 200-day simple moving average on June 28, 2013, when this average was $12.53.

Since then, the stock has been trading back and forth at about $10 a share. This is an important negative for the stock as many equity mutual funds can't own stocks trading below the $10-a-share threshold.

BlackBerry shares traded as low as $5.44 on Dec. 10, 2013. The $5 threshold is another key price, as most brokerage firms won't allow a client to own a stock trading below $5 a share on margin.

Since that low, there have been several failed spikes above $10 a share, which will be highlighted when we look at the daily chart for the stock.

Analysts expect the company to report a loss of 2 cents a share for the fiscal fourth quarter ended in February. The company reports before the opening bell on Friday.

Some analysts say that BlackBerry can survive as a software company. Others say that the company is a survivor with a deal with Sprint and with applications in the health care industry.

In addition, there is a potential short squeeze for the stock.

Let's take a look at the performance measures for BlackBerry, key trading levels and analysis of daily and weekly charts.

BlackBerry ($9.28 at Wednesday's close) gained 48% last year but is down 16% so far in 2015. The stock is 27% below its Jan. 14 high of $12.63 and set its 2015 low on Wednesday.

Investors looking to buy BlackBerry after earnings should place a good 'til canceled limit order to purchase the stock if it drops to $8.24, which is a key level on technical charts until the end of this month.

Investors looking to reduce holdings after earnings should place a good 'til canceled limit order to sell the stock if it rises to $10.45, which is a key level on technical charts until the end of the month.

Let's take a look at the daily chart for BlackBerry.

Courtesy of MetaStock Xenith

The daily chart for BlackBerry ($9.28) shows that the stock broke below its 200-day SMA (green line) at $12.53 as of June 28, 2013. The stock traded as low as $5.44 on Dec. 10, 2013, then rebounded to the 200-day SMA, declining to $10.18 on Jan. 21, 2014.

Since then, BlackBerry shares have traded back and forth around its 200-day SMA, setting a 52-week high of $12.63 this past Jan. 14. The stock has been under downward pressure going into Friday's earnings report, setting a 2015 low of $9.28 on Wednesday.

The stock is below its 50-day (blue line) and its 200-day SMA of $10.18 and $10.14, respectively.

Let's take a look at the weekly chart for BlackBerry.

Courtesy of MetaStock Xenith

The weekly chart for BlackBerry stays negative, given a close on Friday below its key weekly moving average (red line) at $9.98 with the 200-week SMA (green line) at $12.57. The momentum reading shown in red along the bottom of the chart is projected to decline to 23.28, from 31.50 last week.

This article is commentary by an independent contributor. At the time of publication, the author held no positions in the stocks mentioned.